| problem | judge id | link | sets |
| $K$ for More, $K$ for Less | 104555/K | Codeforces Gym | brazil-first-phase-2023 |
| (-1,1)-Sumplete | 104891/A | Codeforces Gym | macau-2023 |
| 1's For All 1sforall 7ffda769-d494-4a36-9e76-93e6450c7051 | 104196/A | Codeforces Gym | ecna-2021 |
| 1\%-Euclidean | 104848/I | Codeforces Gym | moscow-2021 |
| 38 parrots | 102788/D | Codeforces Gym | central-russia-2017 |
| A (Fast) Walk in the Woods | 104757/L | Codeforces Gym | ecna-2023 |
| A Foldy but a Goody | 100647/B | Codeforces Gym | ecna-2007 |
| A Journey to Greece greece 8ee7605a-b83c-801f-1d1a-7503ae5a8be3 | 100753/A | Codeforces Gym | germany-2015 |
| A Musical Question amusicalquestion | 104614/B | Codeforces Gym | ecna-2022 |
| A Non-Palindromic Modification | 104848/A | Codeforces Gym | moscow-2021 |
| A Pivotal Question | 104757/A | Codeforces Gym | ecna-2023 |
| A Prize No One Can Win aprizenoonecanwin c869817c-28c9-4f74-a9ee-99b084f39d1d | 102007/A | Codeforces Gym | bapc-2018 |
| A Puzzling Problem | 100647/F | Codeforces Gym | ecna-2007 |
| A Rank Problem rankproblem b140759b-2094-44a1-9ded-a4bdf72ed0e1 | 104587/G | Codeforces Gym | ecna-2020 |
| A Very Long Hike | 2068G | Codeforces Gym | euc-2025 |
| A healthy menu | 106073/A | Codeforces Gym | brazil-first-phase-2025 |
| A lazy controller | 102785/A | Codeforces Gym | central-russia-2018 |
| A self-describing sequence | 102785/H | Codeforces Gym | central-russia-2018 |
| A word game | 102780/F | Codeforces Gym | central-russia-2019 |
| A-Mazing Puzzle amazingpuzzle | 104614/A | Codeforces Gym | ecna-2022 |
| ABB | 104666/A | Codeforces Gym | cerc-2019 |
| ACM (ACronym Maker) | 100650/A | Codeforces Gym | ecna-2005 |
| AI Thoughts | 104782/H | Codeforces Gym | romania-2023 |
| ASCII Addition asciiaddition 6754e3da-78cd-4c5e-95b8-6329d84b68bf | 101480/A | Codeforces Gym | cerc-2015 |
| ASCII Area | 100085/A | Codeforces Gym | neerc-2011 |
| ASCII Automata Art | 1510A, 102896/A | Codeforces Gym · Codeforces Gym | nerc-2020 |
| ASCII Automata Art | 1510A, 102896/A | Codeforces Gym · Codeforces Gym | nerc-2020 |
| ASCII Expression | 102004/H | Codeforces Gym | japan-2011 |
| ASCII Puzzle | 100307/A | Codeforces Gym | neerc-2013 |
| Aaah! aaah 5eeb0a80-3d68-4894-96f9-31a27364cc61 | 100112/A | Codeforces Gym | nordic-2012 |
| Abbreviation | 101190/A | Codeforces Gym | neerc-2016 |
| Abridged Reading abridgedreading 5eebaea1-0427-442f-8b4f-10792dfa576a | 104196/B | Codeforces Gym | ecna-2021 |
| Accelerator | 103119/A | Codeforces Gym | macau-2020 |
| Accidental Arithmetic accidentalarithmetic 8ee7605a-534d-81d8-1ecc-2d3442537090 | 106160/A | Codeforces Gym | bapc-2025 |
| Accumulator Apex | 1912A | Codeforces Gym | nerc-2023 |
| Ace Arbiter acearbiter 379fac9b-784e-4074-815c-4d8105248ac2 | 104030/A | Codeforces Gym | nordic-2022 |
| Acordes intergaláticos | 101889/A | Codeforces Gym | brazil-2017 |
| Addition Robot | 1252K | Codeforces Gym | jakarta-2019 |
| Adjoin the Networks adjoin 56e55016-b415-4a28-839c-cb546e8ef44c | 100781/A | Codeforces Gym | nordic-2015 |
| Adjusted Average adjustedaverage 8ee7605a-be70-8ce4-1d82-6abebef5c319 | 104020/A | Codeforces Gym | bapc-2022 |
| Adjustment Office | 100851/A | Codeforces Gym | neerc-2015 |
| Administrative Difficulties administrativeproblems 4a2d0b90-feb9-411f-90d3-fd45764a319e | 100625/A | Codeforces Gym | bapc-2013 |
| Admissible Map | 1666A | Codeforces Gym | nerc-2021 |
| Adolescent Architecture 2 adolescentarchitecture2 2878e914-2921-4b3d-afe7-8c26485ea331 | 104466/A | Codeforces Gym | germany-2023 |
| Adrenaline Rush | 2052A | Codeforces Gym | nerc-2024 |
| Ads | 2068C | Codeforces Gym | euc-2025 |
| Aerial Archeology | 101505/A | Codeforces Gym | ctuo-2016 |
| Agents | 100811/A | Codeforces Gym | ctuo-2004 |
| Ah, It's Yesterday Once More | 102992/A | Codeforces Gym | nanjing-2020 |
| Airline | 104797/A | Codeforces Gym | cerc-2021 |
| Airport Coffee airportcoffee 0631c296-84c1-40c0-b4c0-d83d96d7306b | 101572/A | Codeforces Gym | nordic-2017 |
| Airport Logistics airportlogistics def2b608-6403-438f-8f82-a8b5903cbf4c | 101490/A | Codeforces Gym | bapc-2016 |
| Algorithm Teaching | 102428/A | Codeforces Gym | central-america-2019 |
| Algorithm Teaching | 102428/A | Codeforces Gym | mexico-2019 |
| Alice And Bob | 102788/G | Codeforces Gym | central-russia-2017 |
| Alice the Fan | 1089A | Codeforces Gym | nerc-2018 |
| Alien Attack 2 alienattack2 8ee7605a-ac60-80a5-1951-2c9536aabd9c | 105394/A | Codeforces Gym | germany-2024 |
| Alignment of Code | 101309/A | Codeforces Gym | neerc-2010 |
| All Pair Maximum Flow | 102471/K | Codeforces Gym | aec-2019 |
| All in the Family allinthefamily e7308f4c-db1f-427b-864e-0e924aaa0796 | 104587/A | Codeforces Gym | ecna-2020 |
| Allergy Test allergy 7e49f2b8-1bfd-4c62-a117-b512a4b80e4a | 101557/C | Codeforces Gym | nordic-2009 |
| Almost Aligned | 105053/A | Codeforces Gym | lac-2024 |
| Almost Convex | 104901/M | Codeforces Gym | jinan-2023 |
| Almost Origami | 103185/A | Codeforces Gym | brazil-2020 |
| Almost Origami | 103185/A | Codeforces Gym | central-america-2020 |
| Almost Origami | 103185/A | Codeforces Gym | mexico-2020 |
| Alphabet Animals alphabetanimals 03b03b65-2f97-4a6a-ba62-bfe9a6ceb846 | 105472/A | Codeforces Gym | nordic-2019 |
| Alphabet City | 2181A | Codeforces Gym | nerc-2025 |
| Alphacode | 100651/A | Codeforces Gym | ecna-2004 |
| Alter Board | 100553/A | Codeforces Gym | neerc-2014 |
| Alternative Architecture alternativearchitecture f2517a70-dd05-47e9-a6ba-36f7a7c40b87 | 104059/A | Codeforces Gym | germany-2022 |
| Altruistic Amphibians altruisticamphibians ca182f7e-2073-4ca3-a715-17e26d19d40a | 101933/A | Codeforces Gym | nordic-2018 |
| Amanda Lounges amanda 4ecb6d22-8cc2-4e51-b838-6a828e3e3b47 | 100502/A | Codeforces Gym | nordic-ukiepc-2014 |
| Amanda the Amoeba | 1949J | Codeforces Gym | euc-2024 |
| Amazing Trick | 1773A | Codeforces Gym | nerc-2022 |
| Amsterdam Distance amsterdamdistance cbd207c1-b3e9-4729-9fcd-8d4c7d7b4127 | 101666/A | Codeforces Gym | bapc-2017 |
| Amusement Anticipation | 101670/A | Codeforces Gym | ctuo-2017 |
| Amusement Arcade arcade2 051efdbc-aa4b-4bf7-b2e0-bb3c08dbcdc8 | 106167/A | Codeforces Gym | germany-2021 |
| Amusement Park Adventure | 104555/A | Codeforces Gym | brazil-first-phase-2023 |
| Amusement Park Rides | 2068K | Codeforces Gym | euc-2025 |
| Amusing Numbers | 100002/A | Codeforces Gym | neerc-2002 |
| An Easy Calculus Problem | 104118/A | Codeforces Gym | manila-2022 |
| Analyzing Contracts | 104736/A | Codeforces Gym | caribbean-2023 |
| Analyzing Contracts | 104736/A | Codeforces Gym | central-america-2023 |
| Analyzing Contracts | 104736/A | Codeforces Gym | mexico-2023 |
| Ananna | 105789/A | Codeforces Gym | lac-2025 |
| Ancient Magic Circle in Teyvat | 103470/K | Codeforces Gym | nanjing-2021 |
| Ancient Towers | 103640/A | Codeforces Gym | brazil-2021 |
| Ancient Towers | 103640/A | Codeforces Gym | caribbean-2021 |
| Ancient Towers | 103640/A | Codeforces Gym | central-america-2021 |
| Ancient Towers | 103640/A | Codeforces Gym | mexico-2021 |
| And Now, a Remainder from Our Sponsor | 100647/G | Codeforces Gym | ecna-2007 |
| And Then There Was One | 101415/A | Codeforces Gym | japan-2007 |
| Andrew and Python | 102780/I | Codeforces Gym | central-russia-2019 |
| Andrew the Ant andrewant a379778b-579c-498f-b22d-f5912ec49c90 | 100191/A, 100795/A | Codeforces Gym · Codeforces Gym | ctuo-2012 |
| Andrew the Ant andrewant a379778b-579c-498f-b22d-f5912ec49c90 | 100191/A, 100795/A | Codeforces Gym · Codeforces Gym | ctuo-2012 |
| Animal Companion in Maze | 101158/H | Codeforces Gym | japan-2016 |
| Annual Ants' Gathering | 1949C | Codeforces Gym | euc-2024 |
| Another Goose Goose Duck Problem | 104172/H | Codeforces Gym | hong-kong-2022 |
| Antenna Analysis antennaanalysis c6098235-5aad-4874-b312-0254db75fbcd | 104670/A | Codeforces Gym | nordic-2021 |
| Anti-prime Sequences | 100651/B | Codeforces Gym | ecna-2004 |
| Antiparticle Antiphysics | 1938A | Codeforces Gym | apc-2024 |
| Ants on a Ring | 106416/A | Codeforces Gym | lac-2026 |
| Aperiodic Appointments aperiodicappointments 3d6a0f09-40ca-4f41-8853-30ee85f28903 | 105427/A | Codeforces Gym | nordic-2023 |
| Appearance Analysis | 101173/A | Codeforces Gym | cerc-2016 |
| Append and Panic! | 105505/A | Codeforces Gym | caribbean-2024 |
| Append and Panic! | 105505/A | Codeforces Gym | central-america-2024 |
| Append and Panic! | 105505/A | Codeforces Gym | mexico-2024 |
| Apple Pie | 106178/A | Codeforces Gym | caribbean-2025 |
| Apple Pie | 106178/A | Codeforces Gym | central-america-2025 |
| Apple Pie | 106178/A | Codeforces Gym | mexico-2025 |
| Apprentice Learning Trajectory | 1267A | Codeforces Gym | nerc-2019 |
| Arable Area arable d807957f-6172-41c0-9c20-a0cfb0db920e | 100791/A | Codeforces Gym | ctuo-2009 |
| Arbitrage? arbitrage 3c5ec72f-8429-44cc-95f8-0615cbc02b1c | 100790/A | Codeforces Gym | ctuo-2010 |
| Archery Tournament | 101630/A | Codeforces Gym | nerc-2017 |
| Ardenia | 101487/A | Codeforces Gym | cerc-2010 |
| Arithmetic Adaptation arithmeticadaptation 8ee7605a-59c9-8309-0a08-956fa5e72d76 | 106124/A | Codeforces Gym | nordic-2025 |
| Arithmetic Progressions | 102082/B | Codeforces Gym | japan-2018 |
| Arithmetically Challenged | 100645/A | Codeforces Gym | ecna-2009 |
| Army buddies | 100540/A | Codeforces Gym | caribbean-2011 |
| Army buddies | 100540/A | Codeforces Gym | central-america-2011 |
| Around the Table aroundthetable 8ee7605a-261a-87c5-3c15-2c1b7b4e4af4 | 106129/A | Codeforces Gym | germany-2025 |
| Around the track aroundthetrack2 5a1dc804-e6c0-4361-adf4-305de7e0a0a9 | 101556/K | Codeforces Gym | nordic-2010 |
| Arranging tiles | 101889/A | Codeforces Gym | central-america-2017 |
| Array | 104673/A | Codeforces Gym | ctuo-2022 |
| Array of Discord arrayofdiscord 6d8509d6-ddec-4318-81c7-215f97e31165 | 105444/A | Codeforces Gym | nordic-2020 |
| Art Transaction | 104713/A | Codeforces Gym | cerc-2020 |
| Artifacts | 103119/D | Codeforces Gym | macau-2020 |
| Artilleries and Defensive Walls | 102001/E | Codeforces Gym | jakarta-2018 |
| Artwork | 102428/A | Codeforces Gym | brazil-2019 |
| Artwork | 102346/A | Codeforces Gym | brazil-first-phase-2019 |
| Artwork artwork 9102aba6-fa66-419a-a94c-0c6dbd37a494 | 101550/A | Codeforces Gym | nordic-2016 |
| Asking for Money | 104252/A | Codeforces Gym | caribbean-2022 |
| Asking for Money | 104252/A | Codeforces Gym | central-america-2022 |
| Asking for Money | 104252/A | Codeforces Gym | mexico-2022 |
| Assessments | 101840/A, 101856/A | Codeforces Gym · Codeforces Gym | egypt-2017 |
| Assessments | 101840/A, 101856/A | Codeforces Gym · Codeforces Gym | egypt-2017 |
| Assigning Prizes | 103388/A | Codeforces Gym | brazil-first-phase-2021 |
| Assignment Algorithm | 101620/A | Codeforces Gym | cerc-2017 |
| Asteroids | 100069/A | Codeforces Gym | neerc-2009 |
| Astral Geometry | 106268/F | Codeforces Gym | japan-2025 |
| Attack on Alpha-Zet attackonalphazet bff599c7-e52b-4849-9360-ac33d11e1e07 | 102021/A | Codeforces Gym | germany-2018 |
| Attendance | 104871/A | Codeforces Gym | cerc-2023 |
| Attracting Attendees attractingattendees 8ee7605a-fec7-8e87-01a8-f6ae686a42fb | 106797/A | Codeforces Gym | germany-2026 |
| Attraction Score | 1938B | Codeforces Gym | apc-2024 |
| Automotive Navigation | 100803/E | Codeforces Gym | japan-2014 |
| Autonomous Vehicle | 102920/A | Codeforces Gym | korea-2020 |
| Avoiding the Abyss avoidingtheabyss 4e11ec75-55b4-4052-ab72-2589b49020e0 | 105431/A | Codeforces Gym | nordic-2024 |
| Avoiding the Apocalypse avoidingtheapocalypse 400395e6-e6e6-4296-9239-39020f9a1665 | 100526/A, 101512/A | Codeforces Gym · Codeforces Gym | bapc-2014 |
| Avoiding the Apocalypse avoidingtheapocalypse 400395e6-e6e6-4296-9239-39020f9a1665 | 100526/A, 101512/A | Codeforces Gym · Codeforces Gym | bapc-2014 |
| Awesome Shawarma | 101991/A | Codeforces Gym | acpc-2018 |
| Awkward Lights | 101413/D | Codeforces Gym | japan-2010 |
| Axis of Symmetry | 102452/A | Codeforces Gym | hong-kong-2019 |
| B Road Band | 104757/B | Codeforces Gym | ecna-2023 |
| Baby Bites babybites ad1fe46a-ef41-4bfd-8b7d-c5cc31e50b54 | 101933/B | Codeforces Gym | nordic-2018 |
| Baby's First Suffix Array Problem | 102992/B | Codeforces Gym | nanjing-2020 |
| Baby’s Blocks | 101518/D | Codeforces Gym | bapc-2009 |
| Bad Wiring | 101519/D | Codeforces Gym | bapc-2011 |
| Baklava Tray | 101991/B | Codeforces Gym | acpc-2018 |
| Balanced Array | 104857/D | Codeforces Gym | hefei-2023 |
| Balanced Balloons | 106178/B | Codeforces Gym | caribbean-2025 |
| Balanced Balloons | 106178/B | Codeforces Gym | central-america-2025 |
| Balanced Balloons | 106178/B | Codeforces Gym | mexico-2025 |
| Ball Passing | 104871/B | Codeforces Gym | cerc-2023 |
| Ball Stacking | 100540/B | Codeforces Gym | caribbean-2011 |
| Ball Stacking | 100540/B | Codeforces Gym | central-america-2011 |
| Ball of Whacks ballofwhacks dc067246-ad6f-4e56-8a03-ebbdbf723295 | 104196/C | Codeforces Gym | ecna-2021 |
| Balloon | 101473/B | Codeforces Gym | brazil-first-phase-2013 |
| Balloon Collecting | 101413/B | Codeforces Gym | japan-2010 |
| Balloon Darts balloondarts 4dcb0c7e-00bc-425e-82a5-0fe685f5a6cd | 104466/B | Codeforces Gym | germany-2023 |
| Balls of Buma | 1267B | Codeforces Gym | nerc-2019 |
| Bandits | 104686/A | Codeforces Gym | cerc-2022 |
| Bank Robbery | 104713/B | Codeforces Gym | cerc-2020 |
| Baralho Alho | 106073/B | Codeforces Gym | brazil-first-phase-2025 |
| Baseball Court baseballcourt 8ee7605a-fd2e-895d-201c-cd1863b26aaf | 105431/B | Codeforces Gym | nordic-2024 |
| Basic Equation Solving | 104891/B | Codeforces Gym | macau-2023 |
| Basic Substring Structure | 104901/H | Codeforces Gym | jinan-2023 |
| Basin City Surveillance basincity 5f5bbd5b-661b-439b-a083-970a9ce31f31 | 100502/B | Codeforces Gym | nordic-ukiepc-2014 |
| Basketball | 104782/C | Codeforces Gym | romania-2023 |
| Battle Bots battlebots 8ee7605a-24b1-8f3b-2549-9fc7279c1e2e | 104790/B | Codeforces Gym | bapc-2023 |
| Battle Royale battleroyale 424ea164-932b-4afa-ba6c-3b15f3d5a27c | 102021/B | Codeforces Gym | germany-2018 |
| Battle Simulation battlesimulation ca98013c-2cf7-4e40-ac03-47c2159fd339 | 101490/B | Codeforces Gym | bapc-2016 |
| Battle of Arrays | 2181B | Codeforces Gym | nerc-2025 |
| Battleship | 102861/B | Codeforces Gym | brazil-first-phase-2020 |
| Be Geeks! | 104666/B | Codeforces Gym | cerc-2019 |
| Beacons beacons 89bbb159-ea28-4696-848c-f5bf7ae9ce9e | 101557/H | Codeforces Gym | nordic-2009 |
| Bearly Made It bearlymadeit c82bbe9b-635e-43c5-bec2-6e51efdde84f | 101666/B | Codeforces Gym | bapc-2017 |
| Beasts | 101487/B | Codeforces Gym | cerc-2010 |
| Beating the Record | 105053/B | Codeforces Gym | lac-2024 |
| Beautiful Mountains | 103185/B | Codeforces Gym | brazil-2020 |
| Beautiful Mountains | 103185/B | Codeforces Gym | central-america-2020 |
| Beautiful Mountains | 103185/B | Codeforces Gym | mexico-2020 |
| Beautiful Spacing | 101412/I | Codeforces Gym | japan-2012 |
| Beautiful Words | 103388/B | Codeforces Gym | brazil-first-phase-2021 |
| Beautiful hockey | 104452/M | Codeforces Gym | central-russia-2020 |
| Because, Art! | 103640/B | Codeforces Gym | brazil-2021 |
| Because, Art! | 103640/B | Codeforces Gym | caribbean-2021 |
| Because, Art! | 103640/B | Codeforces Gym | central-america-2021 |
| Because, Art! | 103640/B | Codeforces Gym | mexico-2021 |
| Beer Barrels | 104784/B1 | Codeforces Gym | ctuo-2019 |
| Beer Bill | 104784/B2 | Codeforces Gym | ctuo-2019 |
| Beer Can Game | 104784/G | Codeforces Gym | ctuo-2019 |
| Beer Coasters | 104784/C | Codeforces Gym | ctuo-2019 |
| Beer Flood System | 104784/F | Codeforces Gym | ctuo-2019 |
| Beer Marathon | 104784/M1 | Codeforces Gym | ctuo-2019 |
| Beer Mugs | 104784/M2 | Codeforces Gym | ctuo-2019 |
| Beer Vision | 104784/V | Codeforces Gym | ctuo-2019 |
| Bell Ringing bells 5c9b093e-4043-48bd-a39c-cb172c6ada4a | 100781/B | Codeforces Gym | nordic-2015 |
| Bellevue bellevue 8ee7605a-a7a6-82f0-337d-5555b9279960 | 104020/B | Codeforces Gym | bapc-2022 |
| Berry Battle berrybattle 9f349d18-89d1-44c5-8f1c-03f077a10c6b | 104030/B | Codeforces Gym | nordic-2022 |
| Berry Battle 2 berrybattle2 9f9457d7-2b09-485f-a4d1-dc66da2b8641 | 105427/B | Codeforces Gym | nordic-2023 |
| Best Carry Player | 104076/M | Codeforces Gym | jinan-2022 |
| Best Fair Shuffles | 104555/B | Codeforces Gym | brazil-first-phase-2023 |
| Best Relay Team bestrelayteam e75aeca7-a371-403b-8395-dbb84d8986c5 | 101572/B | Codeforces Gym | nordic-2017 |
| Beth's Cookies | 104767/A | Codeforces Gym | ctuo-2023 |
| Better than Bitcoin | 104118/B | Codeforces Gym | manila-2022 |
| Between Us | 102861/K | Codeforces Gym | brazil-first-phase-2020 |
| Beyond the Former Explorer | 105633/G | Codeforces Gym | japan-2024 |
| Big Brother bigbrother c003fe10-4876-4dad-ad87-7cbd1495564f | 105444/B | Codeforces Gym | nordic-2020 |
| Big Picture | 104172/B | Codeforces Gym | hong-kong-2022 |
| Biketopia's Cyclic Track | 105505/B | Codeforces Gym | caribbean-2024 |
| Biketopia's Cyclic Track | 105505/B | Codeforces Gym | central-america-2024 |
| Biketopia's Cyclic Track | 105505/B | Codeforces Gym | mexico-2024 |
| Bimatching | 1089B | Codeforces Gym | nerc-2018 |
| BinCoin | 1773B | Codeforces Gym | nerc-2022 |
| Binary Code | 101190/B | Codeforces Gym | neerc-2016 |
| Binary Encoding | 100085/B | Codeforces Gym | neerc-2011 |
| Binary Operation | 101309/B | Codeforces Gym | neerc-2010 |
| Binary String | 102001/L | Codeforces Gym | jakarta-2018 |
| Binary Tree | 102452/B | Codeforces Gym | hong-kong-2019 |
| Binary vs Decimal | 100851/B | Codeforces Gym | neerc-2015 |
| Bio Trip biotrip | 104596/B | Codeforces Gym | ecna-2019 |
| Bipartite Blanket | 101173/B | Codeforces Gym | cerc-2016 |
| Birthday Boy birthdayboy b4c968ca-90e1-4229-b1e0-f429c1497c4f | 102007/B | Codeforces Gym | bapc-2018 |
| Bit Counting Sequence | 1938C | Codeforces Gym | apc-2024 |
| Bit String Reordering | 100803/A | Codeforces Gym | japan-2014 |
| BitBitJump | 2052B | Codeforces Gym | nerc-2024 |
| Blabla | 104782/K | Codeforces Gym | romania-2023 |
| Black Box | 102788/E | Codeforces Gym | central-russia-2017 |
| Black and White | 102471/B | Codeforces Gym | aec-2019 |
| Black and White Boxes | 101158/K | Codeforces Gym | japan-2016 |
| Black or White | 101986/E | Codeforces Gym | japan-2017 |
| Blackboard Game | 104736/B | Codeforces Gym | caribbean-2023 |
| Blackboard Game | 104736/B | Codeforces Gym | central-america-2023 |
| Blackboard Game | 104736/B | Codeforces Gym | mexico-2023 |
| Blackjack | 101516/F | Codeforces Gym | bapc-2008 |
| Bladestorm | 104891/C | Codeforces Gym | macau-2023 |
| Bless You Autocorrect! autocorrect 9901d5e5-444e-4f3e-b18a-44ac47963a31 | 101550/B | Codeforces Gym | nordic-2016 |
| Blueprint for Seating | 1912B | Codeforces Gym | nerc-2023 |
| Board Game | 104252/B | Codeforces Gym | caribbean-2022 |
| Board Game | 104252/B | Codeforces Gym | central-america-2022 |
| Board Game | 104252/B | Codeforces Gym | mexico-2022 |
| Boarding Queue | 2073L | Codeforces Gym | apc-2025 |
| Boatherds | 100811/B | Codeforces Gym | ctuo-2004 |
| Bob in Wonderland | 104666/C | Codeforces Gym | cerc-2019 |
| Boggle Sort bogglesort 8ee7605a-a61d-8121-0133-22cb2f86cff4 | 106160/B | Codeforces Gym | bapc-2025 |
| Bohemian Bookshelf bohemianbookshelf 8ee7605a-5a60-8535-3d65-99ef2771076f | 106124/B | Codeforces Gym | nordic-2025 |
| Boiling Vegetables vegetables cd9e6528-c065-47bb-97be-42c85feb1bdc | 101554/B | Codeforces Gym | nordic-ukiepc-2013 |
| Bonus Cards | 100307/B | Codeforces Gym | neerc-2013 |
| Book Borders | 101480/B | Codeforces Gym | cerc-2015 |
| Book Sorting | 2073K | Codeforces Gym | apc-2025 |
| Bookshelf Bottleneck bookshelfbottleneck 8ee7605a-8e12-8763-20f2-cfc6feb9260c | 105394/B | Codeforces Gym | germany-2024 |
| Booksort | 106416/B | Codeforces Gym | lac-2026 |
| Boomerangs | 102001/K | Codeforces Gym | jakarta-2018 |
| Bordering on Madness | 100646/A | Codeforces Gym | ecna-2008 |
| Borg Boogie borgboogie 641e24ec-07cf-478a-9b18-013e9608bf86 | 101556/C | Codeforces Gym | nordic-2010 |
| Boring Card Game | 101481/B | Codeforces Gym | cerc-2011 |
| Boring Problem | 103119/B | Codeforces Gym | macau-2020 |
| Boss | 101473/C | Codeforces Gym | brazil-first-phase-2013 |
| Botas perdidas | 100540/B | Codeforces Gym | brazil-2011 |
| Boulevard of Broken Cars | 106270/B | Codeforces Gym | dhaka-2025 |
| Bounty Hunter II bountyhii 8ee7605a-98dd-83ae-26e3-083913ceca0b | 100753/B | Codeforces Gym | germany-2015 |
| Box | 101630/B | Codeforces Gym | nerc-2017 |
| Brass Birmingham: beer | 104454/G | Codeforces Gym | central-russia-2021 |
| Brass Birmingham: cities | 104454/F | Codeforces Gym | central-russia-2021 |
| Brass Birmingham: coins | 104454/E | Codeforces Gym | central-russia-2021 |
| Brass Birmingham: roads | 104454/H | Codeforces Gym | central-russia-2021 |
| Brazilian FootXOR | 105789/B | Codeforces Gym | lac-2025 |
| Bread Pit breadpit 2b1c3830-d0e2-4b86-8a4c-86223b278cab | 104783/P | Codeforces Gym | ctuo-2021 |
| Bread Sorting bread e36924d0-bfc9-4ce8-9518-5045ab0aa5ba | 100112/B | Codeforces Gym | nordic-2012 |
| Breaking Bars breakingbars c198c089-907d-4406-b3b6-35f6b1d0db45 | 104670/B | Codeforces Gym | nordic-2021 |
| Breaking the Curse | 101840/B, 101856/B | Codeforces Gym · Codeforces Gym | egypt-2017 |
| Breaking the Curse | 101840/B, 101856/B | Codeforces Gym · Codeforces Gym | egypt-2017 |
| Breeding Bugs breedingbugs d3a1a4df-a1c2-4e81-9416-27c69ad10ba8 | 104059/B | Codeforces Gym | germany-2022 |
| Brexit brexit 6a622eb5-ff33-440b-96cc-81a849f0853d | 101490/C | Codeforces Gym | bapc-2016 |
| Brexiting and Brentering brentering ca5fb45a-be88-45f5-9c43-2683547af746 | 106167/B | Codeforces Gym | germany-2021 |
| Bribe bribe b3bf3df3-ac29-4d81-97eb-48c31bb3af8c | 100625/B | Codeforces Gym | bapc-2013 |
| Bricks brickpartition d589443d-e7ca-41da-af1a-6c49be2346db | 100543/I | Codeforces Gym | cerc-2014 |
| Bricks | 100002/B | Codeforces Gym | neerc-2002 |
| Bridge Automation bridgeautomation fc2d413c-befa-48af-b004-edad0e6e8a15 | 101490/D | Codeforces Gym | bapc-2016 |
| Brincadeira | 101889/B | Codeforces Gym | brazil-2017 |
| Broadcast Stations | 101667/A | Codeforces Gym | korea-2017 |
| Bubbly Troubly bubblytroubly | 101196/A | Codeforces Gym | ecna-2016 |
| Bucket of sand | 104454/D | Codeforces Gym | central-russia-2021 |
| Budget Distribution | 1666B | Codeforces Gym | nerc-2021 |
| Buffalo Barricades | 101620/B | Codeforces Gym | cerc-2017 |
| Buffoon | 102428/B | Codeforces Gym | brazil-2019 |
| Buffoon | 102346/B | Codeforces Gym | brazil-first-phase-2019 |
| Bug Hunt | 101415/H | Codeforces Gym | japan-2007 |
| Buggy Blinkers buggyblinkers 8ee7605a-0bd4-83b9-0b7a-f2fe89ae1ad2 | 105492/B | Codeforces Gym | bapc-2024 |
| Buggy ICPC | 101889/B | Codeforces Gym | central-america-2017 |
| Build the Non-Cactus | 104848/F | Codeforces Gym | moscow-2021 |
| Build the Perfect House | 102428/B | Codeforces Gym | central-america-2019 |
| Build the Perfect House | 102428/B | Codeforces Gym | mexico-2019 |
| Building Boundaries buildingboundaries 5253c7ab-8fb7-43b9-a76d-9cb8d8e40e83 | 105472/B | Codeforces Gym | nordic-2019 |
| Building on the Moon | 104797/B | Codeforces Gym | cerc-2021 |
| Buildings buildings 3a8c5ec5-67a2-424a-9f06-7ed86bf744c2 | 101873/B | Codeforces Gym | germany-2017 |
| Burizon Fort burizonfort 931b4186-9921-44c5-8595-ef5869e5f42f | 104783/F | Codeforces Gym | ctuo-2021 |
| Burrito King | 100553/B | Codeforces Gym | neerc-2014 |
| Bus bus 9f247af7-1487-41e4-8b34-e7469279abbb | 100299/L | Codeforces Gym | cerc-2013 |
| Bus Clock Display busclock 3d49f6f2-fdc3-4def-a433-335791773574 | 100790/C | Codeforces Gym | ctuo-2010 |
| Bus Schedules busschedules 7fdc434b-ddb6-4657-9c61-f79d2c7876b7 | 100790/B | Codeforces Gym | ctuo-2010 |
| Buses | 101473/H | Codeforces Gym | brazil-first-phase-2013 |
| Business Center | 100069/B | Codeforces Gym | neerc-2009 |
| Bustling Busride bustlingbusride 8ee7605a-6c46-80dc-0b3c-0eb041e8c2a6 | 106129/B | Codeforces Gym | germany-2025 |
| Button Bashing buttonbashing 35bc0cbf-8c22-47be-b62e-cb63dc294b04 | 100526/B, 101512/B | Codeforces Gym · Codeforces Gym | bapc-2014 |
| Button Bashing buttonbashing 35bc0cbf-8c22-47be-b62e-cb63dc294b04 | 100526/B, 101512/B | Codeforces Gym · Codeforces Gym | bapc-2014 |
| Button Lock | 1510B, 102896/B | Codeforces Gym · Codeforces Gym | nerc-2020 |
| Button Lock | 1510B, 102896/B | Codeforces Gym · Codeforces Gym | nerc-2020 |
| Button Pressing | 1906B | Codeforces Gym | jakarta-2023 |
| Bye Bye Bilbo byebyebilbo 8ee7605a-1df3-84a0-3fe2-bc7f23d55bf6 | 106797/B | Codeforces Gym | germany-2026 |
| Bánh Bò | 1938D | Codeforces Gym | apc-2024 |
| C Looooops | 100811/C | Codeforces Gym | ctuo-2004 |
| C(O|W|A*RD*|S)* CROSSWORD Puzzle | 102014/J | Codeforces Gym | japan-2013 |
| C-Style String Length | 106270/J | Codeforces Gym | dhaka-2025 |
| CIVIC DILL MIX | 100647/A | Codeforces Gym | ecna-2007 |
| Cable Connection | 101505/C | Codeforces Gym | ctuo-2016 |
| Cacti Classification | 2181C | Codeforces Gym | nerc-2025 |
| Cactus Automorphisms | 100307/C | Codeforces Gym | neerc-2013 |
| Cactus Connectivity | 2073C | Codeforces Gym | apc-2025 |
| Cactus Construction | 101190/C | Codeforces Gym | neerc-2016 |
| Cactus Generator | 100553/C | Codeforces Gym | neerc-2014 |
| Cactus Jubilee | 100851/C | Codeforces Gym | neerc-2015 |
| Cactus Meets Torus | 1773C | Codeforces Gym | nerc-2022 |
| Cactus Not Enough | 1510C, 102896/C | Codeforces Gym · Codeforces Gym | nerc-2020 |
| Cactus Not Enough | 1510C, 102896/C | Codeforces Gym · Codeforces Gym | nerc-2020 |
| Cactus Revenge | 1267C | Codeforces Gym | nerc-2019 |
| Cactus Revolution | 101309/C | Codeforces Gym | neerc-2010 |
| Cactus Search | 1089C | Codeforces Gym | nerc-2018 |
| Cactus Transformation | 1912C | Codeforces Gym | nerc-2023 |
| Cactus cutting | 104797/C | Codeforces Gym | cerc-2021 |
| Cactus without Bridges | 2052C | Codeforces Gym | nerc-2024 |
| Cake cake3 8ee7605a-e9a5-8180-0560-6201b45ec580 | 100753/C | Codeforces Gym | germany-2015 |
| Cake Decoration | 104849/H | Codeforces Gym | japan-2022 |
| Cakes | 104871/C | Codeforces Gym | cerc-2023 |
| Calendar of Events | 100810/B | Codeforces Gym | ctuo-2007 |
| Campeonato de SMS | 100540/C | Codeforces Gym | brazil-2011 |
| Campus Partition | 104857/K | Codeforces Gym | hefei-2023 |
| Can You Reach There? | 2073M | Codeforces Gym | apc-2025 |
| Can't Stop Playing cantstopplaying 123d49ec-0b08-4d40-8524-95e7aef9caa7 | 100543/E | Codeforces Gym | cerc-2014 |
| Candy Ads | 103119/K | Codeforces Gym | macau-2020 |
| Candy Rush | 104736/C | Codeforces Gym | caribbean-2023 |
| Candy Rush | 104736/C | Codeforces Gym | central-america-2023 |
| Candy Rush | 104736/C | Codeforces Gym | mexico-2023 |
| Candy’s Candy | 100540/C | Codeforces Gym | caribbean-2011 |
| Candy’s Candy | 100540/C | Codeforces Gym | central-america-2011 |
| Canoes | 104673/B | Codeforces Gym | ctuo-2022 |
| Captain Obvious and the Rabbit-Man captainobvious d48da54f-3597-4d33-b920-326480cd85c3 | 100299/J | Codeforces Gym | cerc-2013 |
| Captain Q’s Treasure | 102004/G | Codeforces Gym | japan-2011 |
| Caption | 100085/C | Codeforces Gym | neerc-2011 |
| Car Trouble cartrouble 3b387d96-d493-413d-8efe-cf3c26077903 | 101555/G | Codeforces Gym | nordic-2011 |
| Caravan Robbers | 100134/C | Codeforces Gym | neerc-2012 |
| Card Game | 104976/K | Codeforces Gym | hangzhou-2023 |
| Card Hand Sorting cardhand 22f6c871-7696-4922-b410-79deeb2b71d5 | 101550/C | Codeforces Gym | nordic-2016 |
| Card Trading cardtrading2 3bc23caf-8c61-42b1-91c3-cd952e5d9ef0 | 106167/C | Codeforces Gym | germany-2021 |
| Cardboard Container cardboardcontainer a2b4ffed-6207-4246-9b75-ebdfb8fae22e | 102007/C | Codeforces Gym | bapc-2018 |
| Carpets carpets 8ee7605a-bf81-8e9c-04b3-ec6f9be3d1b9 | 100753/D | Codeforces Gym | germany-2015 |
| Casting Spells castingspells 090cb348-1ff7-4bfa-89ea-f9d08ca25764 | 101487/C | Codeforces Gym | cerc-2010 |
| Catalan Square catalansquare 8364f9d3-fdac-4d48-bd31-94fe05cf01ed | 100502/C | Codeforces Gym | nordic-ukiepc-2014 |
| Catch the Bus! | 100810/A | Codeforces Gym | ctuo-2007 |
| Caterpillar | 100648/A | Codeforces Gym | ecna-2006 |
| Certain Scientific Railgun | 102992/C | Codeforces Gym | nanjing-2020 |
| Chain & Co. chainco 0111dff5-82d0-473c-b5ec-f97ccfd19561 | 100299/H | Codeforces Gym | cerc-2013 |
| Chain of Fools | 100190/B | Codeforces Gym | ecna-2011 |
| Challenging Hike | 104555/C | Codeforces Gym | brazil-first-phase-2023 |
| Change of Scenery changeofscenery 8ee7605a-faa0-8505-1347-5453c2b90b74 | 100753/E | Codeforces Gym | germany-2015 |
| Chaotic Construction chaoticconstruction db2316aa-072a-4f3c-b276-953eb8ddfc70 | 104059/C | Codeforces Gym | germany-2022 |
| Charity Raffle | 106268/G | Codeforces Gym | japan-2025 |
| Charles in Charge charlesincharge 137a4f61-d6ad-43f6-b684-c2e03a8c0436 | 101490/E | Codeforces Gym | bapc-2016 |
| Charlie the Cockchafer cockchafer 02a402a9-4d1e-44d9-aa91-065551422ef6 | 100191/C, 100795/C | Codeforces Gym · Codeforces Gym | ctuo-2012 |
| Charlie the Cockchafer cockchafer 02a402a9-4d1e-44d9-aa91-065551422ef6 | 100191/C, 100795/C | Codeforces Gym · Codeforces Gym | ctuo-2012 |
| Charming Meals | 1949B | Codeforces Gym | euc-2024 |
| Chasing the Cheetahs cheetahs 250253f4-76f4-4423-92f6-350467d8dc13 | 100829/A | Codeforces Gym | ctuo-2015 |
| Chat Program | 104128/D | Codeforces Gym | nanjing-2022 |
| Chayas | 104832/E | Codeforces Gym | japan-2023 |
| Cheering Parabolas | 101840/C, 101856/C | Codeforces Gym · Codeforces Gym | egypt-2017 |
| Cheering Parabolas | 101840/C, 101856/C | Codeforces Gym · Codeforces Gym | egypt-2017 |
| Cheese, If You Please cheeseifyouplease | 104596/C | Codeforces Gym | ecna-2019 |
| Chemist's Math | 101414/F | Codeforces Gym | japan-2009 |
| Chemist's vows chemistsvows 790848d7-6680-4b2e-bb17-524242d95467 | 100624/C | Codeforces Gym | cerc-2012 |
| Chess knight on the curb stone | 104452/H | Codeforces Gym | central-russia-2020 |
| Chessboard Dancing | 101670/C | Codeforces Gym | ctuo-2017 |
| Christmas Children Circle | 104848/D | Codeforces Gym | moscow-2021 |
| Christmas Tree Un-decoration | 2206D | Codeforces Gym | apc-2026 |
| Cigarras periódicas | 101889/C | Codeforces Gym | brazil-2017 |
| Cindy's Christmas Challenge | 105505/C | Codeforces Gym | caribbean-2024 |
| Cindy's Christmas Challenge | 105505/C | Codeforces Gym | central-america-2024 |
| Cindy's Christmas Challenge | 105505/C | Codeforces Gym | mexico-2024 |
| Cipher | 104452/L | Codeforces Gym | central-russia-2020 |
| Circuits | 101987/A | Codeforces Gym | korea-2018 |
| Citadel Construction citadelconstruction b7ccd02c-e6ec-4043-93f9-f61205e6bdb3 | 100526/C, 101512/C | Codeforces Gym · Codeforces Gym | bapc-2014 |
| Citadel Construction citadelconstruction b7ccd02c-e6ec-4043-93f9-f61205e6bdb3 | 100526/C, 101512/C | Codeforces Gym · Codeforces Gym | bapc-2014 |
| City | 102471/A | Codeforces Gym | aec-2019 |
| City Folding | 104252/C | Codeforces Gym | caribbean-2022 |
| City Folding | 104252/C | Codeforces Gym | central-america-2022 |
| City Folding | 104252/C | Codeforces Gym | mexico-2022 |
| City Merger | 102004/F | Codeforces Gym | japan-2011 |
| Clean Streets | 106178/C | Codeforces Gym | caribbean-2025 |
| Clean Streets | 106178/C | Codeforces Gym | central-america-2025 |
| Clean Streets | 106178/C | Codeforces Gym | mexico-2025 |
| Cleaning Robots | 1252B | Codeforces Gym | jakarta-2019 |
| Clever Cell Choices | 105053/C | Codeforces Gym | lac-2024 |
| Cliff Walk cliffwalk d7edfdcf-0fb1-4316-8f61-5f4adf3d84fd | 101554/K | Codeforces Gym | nordic-ukiepc-2013 |
| Clock Captcha | 100791/C | Codeforces Gym | ctuo-2009 |
| Clock Hands | 102014/D | Codeforces Gym | japan-2013 |
| Clock Pictures clockpictures f9f73658-9372-4959-a62d-37e58b9555b6 | 100502/H | Codeforces Gym | nordic-ukiepc-2014 |
| Clockwork ||ange | 104668/C | Codeforces Gym | cerc-2018 |
| Cloud Retainer's Game | 103470/I | Codeforces Gym | nanjing-2021 |
| Club Assignment | 103119/C | Codeforces Gym | macau-2020 |
| Clubbing | 104767/B | Codeforces Gym | ctuo-2023 |
| Coatless in Yakutsk | 105789/C | Codeforces Gym | lac-2025 |
| Cocoa Coalition cocoacoalition 1b6730f4-17dc-48eb-98a6-c06a91f5cd81 | 105472/C | Codeforces Gym | nordic-2019 |
| Code Cleanups codecleanups 9934cbb8-cd7c-4a06-966d-5e9fe8fc38e8 | 101933/C | Codeforces Gym | nordic-2018 |
| Code Permutations codepermutations da6a5f52-1638-48f1-a346-93bd84ed1dc1 | 101557/J | Codeforces Gym | nordic-2009 |
| Coffee | 101991/C | Codeforces Gym | acpc-2018 |
| Coffee Cup Combo coffeecupcombo 7a4d0e12-e51c-4002-af52-818b5f61bef5 | 104030/C | Codeforces Gym | nordic-2022 |
| Coherency coherency 8ee7605a-789d-831b-0c63-11f3bc15d25c | 106160/C | Codeforces Gym | bapc-2025 |
| Coin Stacks coinstacks 72626d56-ee1a-45d8-adf1-195f1f92cd1f | 105444/C | Codeforces Gym | nordic-2020 |
| Collatz Conjecture collatzconjecture 08b63c7e-ad60-4b00-83b9-197f1a7b2630 | 101666/C | Codeforces Gym | bapc-2017 |
| Collatz polynomial | 106073/C | Codeforces Gym | brazil-first-phase-2025 |
| Collecting Data | 102861/J | Codeforces Gym | brazil-first-phase-2020 |
| Color Inversion on a Huge Chessboard | 104832/F | Codeforces Gym | japan-2023 |
| Color the Tree | 104128/E | Codeforces Gym | nanjing-2022 |
| Colorful Balloons | 104857/F | Codeforces Gym | hefei-2023 |
| Colorful Tree | 102082/J | Codeforces Gym | japan-2018 |
| Colorful Tree | 104373/J | Codeforces Gym | macau-2021 |
| Colorful Tribune | 101505/J | Codeforces Gym | ctuo-2016 |
| Combination Locks | 104686/B | Codeforces Gym | cerc-2022 |
| Commemorative Dice | 102920/B | Codeforces Gym | korea-2020 |
| Common Tangent Lines | 106268/L | Codeforces Gym | japan-2025 |
| Company Organization | 101412/H | Codeforces Gym | japan-2012 |
| Compare Suffixes | 2206A | Codeforces Gym | apc-2026 |
| Compass Card Sales compasscard 43fe8464-3526-4d61-861c-52f0afeeffc7 | 101572/C | Codeforces Gym | nordic-2017 |
| Complete Naebbirac’s sequence | 101889/C | Codeforces Gym | central-america-2017 |
| Composed Rhythms composedrhythms 8ee7605a-8881-8734-17ff-a425a2f204a8 | 105431/C | Codeforces Gym | nordic-2024 |
| Compressing Commands compressingcommands 8ee7605a-6a3d-8eb6-274c-34eb81ec0dd3 | 104790/C | Codeforces Gym | bapc-2023 |
| Computational Complexity | 104857/H | Codeforces Gym | hefei-2023 |
| Computational Intelligence | 104901/J | Codeforces Gym | jinan-2023 |
| Computer Network | 100114/J | Codeforces Gym | central-russia-2012 |
| Concatenating Teams | 102861/C | Codeforces Gym | brazil-first-phase-2020 |
| Concurrent Contests concurrentcontests 8ee7605a-3bae-8752-2bd0-fb54c6140ae2 | 105492/C | Codeforces Gym | bapc-2024 |
| Condorcet Elections | 2068A | Codeforces Gym | euc-2025 |
| Condorcet Winners | 100190/C | Codeforces Gym | ecna-2011 |
| Conform Conforme | 104118/C | Codeforces Gym | manila-2022 |
| Congklak congklak 8ee7605a-9562-80a8-18dc-7b5ef642cb4d | 106129/C | Codeforces Gym | germany-2025 |
| Connect connect 7fc2be66-258a-4faa-ab2d-9dab286e878a | 101556/B | Codeforces Gym | nordic-2010 |
| Connect and Disconnect 1 | 104452/J | Codeforces Gym | central-russia-2020 |
| Connect the Points | 1666C | Codeforces Gym | nerc-2021 |
| Connect3 | 101667/B | Codeforces Gym | korea-2017 |
| Connections | 101630/C | Codeforces Gym | nerc-2017 |
| Conservation conservation 47ad6f6f-c95c-4119-b34a-dba158e2d314 | 100624/J | Codeforces Gym | cerc-2012 |
| Constellations | 104686/C | Codeforces Gym | cerc-2022 |
| Construct The Integer | 104848/E | Codeforces Gym | moscow-2021 |
| Constructing Ranches | 102452/C | Codeforces Gym | hong-kong-2019 |
| Contest with bug | 104452/N | Codeforces Gym | central-russia-2020 |
| Contingency | 106679/K | Codeforces Gym | brazil-first-phase-2026 |
| Contingency Plan 2 | 1906I | Codeforces Gym | jakarta-2023 |
| Control Towers | 2073A | Codeforces Gym | apc-2025 |
| Converting Romans convertingromans 467060eb-4643-488c-a123-3c51a9f42e23 | 105427/C | Codeforces Gym | nordic-2023 |
| Convex Contour convexcontour 29ef6e33-06b0-47fc-a8be-1ed6a03027fd | 101173/C | Codeforces Gym | cerc-2016 |
| Convex Hull Extension | 104757/C | Codeforces Gym | ecna-2023 |
| Cookie Selection cookieselection 12b95e8a-db40-4406-9041-7ed5a20fe502 | 100112/C | Codeforces Gym | nordic-2012 |
| Coolest Ski Route coolestskiroute ca8edc50-7f42-4abe-bac6-b6853418045a | 102021/C | Codeforces Gym | germany-2018 |
| Copycat Catcher copycatcatcher 8ee7605a-39c4-8f6b-01aa-2db4151cea7b | 105394/C | Codeforces Gym | germany-2024 |
| Copying Homework | 1252A | Codeforces Gym | jakarta-2019 |
| Cornering at Poles | 100803/H | Codeforces Gym | japan-2014 |
| Cornhusker | 104757/D | Codeforces Gym | ecna-2023 |
| Corporate Identity | 100810/E | Codeforces Gym | ctuo-2007 |
| Corrupted File | 2073G | Codeforces Gym | apc-2025 |
| Cosmetic Survey | 101987/B | Codeforces Gym | korea-2018 |
| Cosmic Commute cosmiccommute 2256b49f-c4b1-4351-9ee7-1950a17ec080 | 104466/C | Codeforces Gym | germany-2023 |
| Count BFS Graph | 1906J | Codeforces Gym | jakarta-2023 |
| Count the Regions | 102014/C | Codeforces Gym | japan-2013 |
| Countdown | 100650/B | Codeforces Gym | ecna-2005 |
| Counting Cycles | 101986/K | Codeforces Gym | japan-2017 |
| Cover Up | 100645/B | Codeforces Gym | ecna-2009 |
| Cover the Polygon with Your Disk | 101158/J | Codeforces Gym | japan-2016 |
| Cow Confinement | 101480/C | Codeforces Gym | cerc-2015 |
| Cowpproximation | 105442/B | Codeforces Gym | ctuo-2024 |
| Cracking the Code crackingthecode b43bb253-4755-43d2-acc9-a555f860c27b | 100625/C | Codeforces Gym | bapc-2013 |
| Crane crane2 1b4d8c95-be9d-420c-95d2-5775992a6f77 | 100299/I | Codeforces Gym | cerc-2013 |
| Crashing Competition Computer crashingcompetitioncomputer 8ee7605a-fb1a-8632-3bae-e399e99a4786 | 104020/C | Codeforces Gym | bapc-2022 |
| Creating Multiples | 103388/C | Codeforces Gym | brazil-first-phase-2021 |
| Cribbage On Steroids cribbageonsteroids | 104614/C | Codeforces Gym | ecna-2022 |
| Cricket Field | 100002/C | Codeforces Gym | neerc-2002 |
| Crimson Sexy Jalapeños | 104666/D | Codeforces Gym | cerc-2019 |
| Crisis at the Wedding | 103185/C | Codeforces Gym | brazil-2020 |
| Crisis at the Wedding | 103185/C | Codeforces Gym | central-america-2020 |
| Crisis at the Wedding | 103185/C | Codeforces Gym | mexico-2020 |
| Crochet Competition crochetcompetition 8ee7605a-87d9-8378-20e5-2b240afcb9c6 | 106124/C | Codeforces Gym | nordic-2025 |
| Crop Circles | 106416/C | Codeforces Gym | lac-2026 |
| Crosses and Circles crossesandcircles 8ee7605a-4e03-82f2-2085-2492b8997749 | 106797/C | Codeforces Gym | germany-2026 |
| Crossings With Danger | 102428/C | Codeforces Gym | brazil-2019 |
| Crossings With Danger | 102346/C | Codeforces Gym | brazil-first-phase-2019 |
| Cryptographer's Conundrum conundrum 95690516-f814-48db-ac26-b3fa07ecf5c0 | 100781/C | Codeforces Gym | nordic-2015 |
| Crystalfly 8796b664-ba8a-452e-9e51-e28dfb72a142 | 103470/H | Codeforces Gym | nanjing-2021 |
| Cubic Colonies | 101412/J | Codeforces Gym | japan-2012 |
| Cubist Artwork | 101414/A | Codeforces Gym | japan-2009 |
| Cumulative Code | 101620/C | Codeforces Gym | cerc-2017 |
| Cursed Game | 1906C | Codeforces Gym | jakarta-2023 |
| Customs Controls customscontrols 74d75d80-bdf6-4298-9c26-76692e2d4fc3 | 104670/C | Codeforces Gym | nordic-2021 |
| Cut Inequality Down | 102428/C | Codeforces Gym | central-america-2019 |
| Cut Inequality Down | 102428/C | Codeforces Gym | mexico-2019 |
| Cut It Out! | 100644/A | Codeforces Gym | ecna-2010 |
| Cutting Tofu | 106268/E | Codeforces Gym | japan-2025 |
| Cutting with Lasers | 103960/C | Codeforces Gym | brazil-first-phase-2022 |
| Cyanide Rivers cyaniderivers d3fca1c4-02fb-495c-b8c4-4d82539969c0 | 104783/R | Codeforces Gym | ctuo-2021 |
| Cyclic Buffer | 104373/G | Codeforces Gym | macau-2021 |
| Cyclic Substrings | 104857/C | Codeforces Gym | hefei-2023 |
| Cyclists versus Clouds | 103640/C | Codeforces Gym | brazil-2021 |
| Cyclists versus Clouds | 103640/C | Codeforces Gym | caribbean-2021 |
| Cyclists versus Clouds | 103640/C | Codeforces Gym | central-america-2021 |
| Cyclists versus Clouds | 103640/C | Codeforces Gym | mexico-2021 |
| DAG Serialization | 2052D | Codeforces Gym | nerc-2024 |
| DFS Order 2 | 104076/C | Codeforces Gym | jinan-2022 |
| DJ Darko | 104797/D | Codeforces Gym | cerc-2021 |
| Da Mi Lao Shi Ai Kan De | 104090/F | Codeforces Gym | hangzhou-2022 |
| Daily Trips | 104252/D | Codeforces Gym | caribbean-2022 |
| Daily Trips | 104252/D | Codeforces Gym | central-america-2022 |
| Daily Trips | 104252/D | Codeforces Gym | mexico-2022 |
| Daily Turnovers | 103640/D | Codeforces Gym | brazil-2021 |
| Daily Turnovers | 103640/D | Codeforces Gym | caribbean-2021 |
| Daily Turnovers | 103640/D | Codeforces Gym | central-america-2021 |
| Daily Turnovers | 103640/D | Codeforces Gym | mexico-2021 |
| Damage Assessment | 100553/D | Codeforces Gym | neerc-2014 |
| Damage per Second | 1949E | Codeforces Gym | euc-2024 |
| Dams in Distress damsindistress f3d5548a-4722-4990-a626-773a69f03e68 | 105444/D | Codeforces Gym | nordic-2020 |
| Dance Reconstruction dance bbe8b87f-e7ef-44b8-ab44-bb625ffa7a96 | 101554/I | Codeforces Gym | nordic-ukiepc-2013 |
| Dancing Disks | 101173/D | Codeforces Gym | cerc-2016 |
| Dangerous City | 105789/D | Codeforces Gym | lac-2025 |
| Dangerous Dive | 101473/E | Codeforces Gym | brazil-first-phase-2013 |
| Dark Alley darkalley 8ee7605a-65aa-84d7-3602-aedf7577c21b | 105394/D | Codeforces Gym | germany-2024 |
| Dark Ride with Monsters | 101670/H | Codeforces Gym | ctuo-2017 |
| Dartboard dartboard 5834e022-4ee2-46d1-86df-d56533bf66e3 | 101554/J | Codeforces Gym | nordic-ukiepc-2013 |
| Darts dartscores f384d602-d6d9-4aad-a4d9-529a6327a9ed | 100624/H | Codeforces Gym | cerc-2012 |
| Database | 100069/D | Codeforces Gym | neerc-2009 |
| Dating | 1949F | Codeforces Gym | euc-2024 |
| Daunting device | 101889/D | Codeforces Gym | central-america-2017 |
| Daydreaming Stockbroker stockbroker 4f3b057e-9f32-44a9-b4fd-d268baf7033f | 101550/D | Codeforces Gym | nordic-2016 |
| Dazzling Stars | 102428/D | Codeforces Gym | central-america-2019 |
| Dazzling Stars | 102428/D | Codeforces Gym | mexico-2019 |
| Death Knight Hero deathknight 7382f5ab-8b49-47fc-b6d4-7c48fef7280f | 101555/C | Codeforces Gym | nordic-2011 |
| Death to Binary? | 100811/D | Codeforces Gym | ctuo-2004 |
| Deceptive Directions deceptivedirections 5474689e-14b8-41ad-ab74-db521d7ed301 | 104670/D | Codeforces Gym | nordic-2021 |
| Deciphering WordWhiz | 104736/D | Codeforces Gym | caribbean-2023 |
| Deciphering WordWhiz | 104736/D | Codeforces Gym | central-america-2023 |
| Deciphering WordWhiz | 104736/D | Codeforces Gym | mexico-2023 |
| Deck-Building Game | 1906K | Codeforces Gym | jakarta-2023 |
| Decoding Task | 100002/D | Codeforces Gym | neerc-2002 |
| Decompose and Concatenate | 106268/D | Codeforces Gym | japan-2025 |
| Decompressing in a GIF | 100645/C | Codeforces Gym | ecna-2009 |
| Decrypting Zodiac decryptingzodiac cb726ace-754d-4297-8509-fe34a788193b | 106167/D | Codeforces Gym | germany-2021 |
| Deep800080 | 104666/E | Codeforces Gym | cerc-2019 |
| Defense Lines | 101487/D | Codeforces Gym | cerc-2010 |
| Defining Labels | 102452/D | Codeforces Gym | hong-kong-2019 |
| Deforestation | 104686/D | Codeforces Gym | cerc-2022 |
| Deformed Balance | 2206M | Codeforces Gym | apc-2026 |
| Degree of Spanning Tree | 102992/D | Codeforces Gym | nanjing-2020 |
| Deletive Editing | 1666D | Codeforces Gym | nerc-2021 |
| Delight for a Cat | 101190/D | Codeforces Gym | neerc-2016 |
| Delivery Delays deliverydelays 29582629-16b3-41a4-a057-54239761474d | 101933/D | Codeforces Gym | nordic-2018 |
| Delphi Danger delphidanger 8ee7605a-e271-87a2-2767-99e9ef721b26 | 106797/D | Codeforces Gym | germany-2026 |
| Demand for Cycling demandforcycling 8ee7605a-4286-888f-0bb9-e58c75c97924 | 106129/D | Codeforces Gym | germany-2025 |
| Democratic Naming democraticnaming 8ee7605a-7692-841b-1a2e-bddfdc093c6d | 104790/D | Codeforces Gym | bapc-2023 |
| Denormalization | 104686/E | Codeforces Gym | cerc-2022 |
| Denouncing Mafia | 102428/D | Codeforces Gym | brazil-2019 |
| Denouncing Mafia | 102346/D | Codeforces Gym | brazil-first-phase-2019 |
| Designing the Toy | 101630/D | Codeforces Gym | nerc-2017 |
| Despojados | 101889/D | Codeforces Gym | brazil-2017 |
| Dessert Café | 102920/C | Codeforces Gym | korea-2020 |
| Destination Unknown destinationunknown b95d15bf-667a-453b-a548-7468a25dbc93 | 100625/D | Codeforces Gym | bapc-2013 |
| Desvio de rua | 100540/D | Codeforces Gym | brazil-2011 |
| Determining Nucleotide Assortments nucleotides | 104614/D | Codeforces Gym | ecna-2022 |
| Detour detour f9168f8a-9cca-4ed2-95cf-296c1f07cfd2 | 101666/D | Codeforces Gym | bapc-2017 |
| Detour | 104555/D | Codeforces Gym | brazil-first-phase-2023 |
| DevOps Best Practices | 1267D | Codeforces Gym | nerc-2019 |
| Diabolic Doofenshmirtz diabolicdoofenshmirtz f2d1080c-4f38-4730-9666-88016d5a301c | 104059/D | Codeforces Gym | germany-2022 |
| Diamond Dealer | 101516/H | Codeforces Gym | bapc-2008 |
| Diccionário Portuñol | 100540/D | Codeforces Gym | caribbean-2011 |
| Diccionário Portuñol | 100540/D | Codeforces Gym | central-america-2011 |
| Dice Game | 104172/J | Codeforces Gym | hong-kong-2022 |
| Dice Game dicegame 04151a53-eef5-41b1-b43d-01ccca56ee5c | 100502/D | Codeforces Gym | nordic-ukiepc-2014 |
| Dictionary | 100307/D | Codeforces Gym | neerc-2013 |
| Dictionary Size | 100085/D | Codeforces Gym | neerc-2011 |
| Die | 101954/A | Codeforces Gym | ctuo-2018 |
| Die Hard diehard e9f66dac-9113-4042-83a9-5f18e79028ac | 105427/D | Codeforces Gym | nordic-2023 |
| Differences | 104686/F | Codeforces Gym | cerc-2022 |
| Digit Division digitdivision 3bed56c0-e39d-485c-a26c-cfd2d3ff18c7 | 101480/D | Codeforces Gym | cerc-2015 |
| Digital display display 6ec1b964-eae7-44ac-a5fc-365494e8a1d7 | 100791/D | Codeforces Gym | ctuo-2009 |
| Digitalisation | 104767/C | Codeforces Gym | ctuo-2023 |
| Digits | 1510D, 102896/D | Codeforces Gym · Codeforces Gym | nerc-2020 |
| Digits | 1510D, 102896/D | Codeforces Gym · Codeforces Gym | nerc-2020 |
| Digits Are Not Just Characters | 102082/A | Codeforces Gym | japan-2018 |
| Digraphs digraphs 0b246e4e-5ebc-4e56-9770-cf02ad87cfb7 | 100299/K | Codeforces Gym | cerc-2013 |
| Dimensional Warp Drive | 101518/F | Codeforces Gym | bapc-2009 |
| Dimensions | 102785/C | Codeforces Gym | central-russia-2018 |
| Direct Visibility | 100719/E | Codeforces Gym | ctuo-2014 |
| Directional Resemblance | 102014/F | Codeforces Gym | japan-2013 |
| Dirichlet k -th root | 102471/C | Codeforces Gym | aec-2019 |
| Dirty Driving dirtydriving 11471839-2466-4bd9-9333-98e947f38878 | 101556/D | Codeforces Gym | nordic-2010 |
| Disastrous Downtime downtime 9364c008-7a9f-4972-aa4a-dbf17892859b | 100781/D | Codeforces Gym | nordic-2015 |
| Disc District discdistrict 2ddd43e6-66d1-431a-b20b-cf2c9c7fbf1c | 104030/D | Codeforces Gym | nordic-2022 |
| Disgruntled Diner disgruntleddiner 8ee7605a-bf6c-8849-394c-18b0b7d39c71 | 105492/D | Codeforces Gym | bapc-2024 |
| Disjoint Regular Expressions | 100134/D | Codeforces Gym | neerc-2012 |
| Disks | 1949I | Codeforces Gym | euc-2024 |
| Disks Arrangement | 101987/C | Codeforces Gym | korea-2018 |
| Displacing Particles | 103960/D | Codeforces Gym | brazil-first-phase-2022 |
| Displaying Decimals | 106178/D | Codeforces Gym | caribbean-2025 |
| Displaying Decimals | 106178/D | Codeforces Gym | central-america-2025 |
| Displaying Decimals | 106178/D | Codeforces Gym | mexico-2025 |
| Distance Sum | 1089D | Codeforces Gym | nerc-2018 |
| Distance on Triangulation | 100851/D | Codeforces Gym | neerc-2015 |
| Distinctive Character distinctivecharacter 22d9cf2c-398a-49fe-9f38-55441aa70ffb | 101572/D | Codeforces Gym | nordic-2017 |
| Distribution Center | 101158/C | Codeforces Gym | japan-2016 |
| Diverse T-Shirts | 105505/D | Codeforces Gym | caribbean-2024 |
| Diverse T-Shirts | 105505/D | Codeforces Gym | central-america-2024 |
| Diverse T-Shirts | 105505/D | Codeforces Gym | mexico-2024 |
| DiviDuelo | 105053/D | Codeforces Gym | lac-2024 |
| Divide and Connect 2 | 104452/K | Codeforces Gym | central-russia-2020 |
| Dividing Candy | 103185/D | Codeforces Gym | brazil-2020 |
| Dividing Candy | 103185/D | Codeforces Gym | central-america-2020 |
| Dividing Candy | 103185/D | Codeforces Gym | mexico-2020 |
| Dividing DNA dividingdna 8ee7605a-c469-8ea4-2f46-f87aab168057 | 104020/D | Codeforces Gym | bapc-2022 |
| Dividing the Kingdom | 103388/D | Codeforces Gym | brazil-first-phase-2021 |
| Divisibility Dance | 102861/D | Codeforces Gym | brazil-first-phase-2020 |
| Divisibility Test | 1912D | Codeforces Gym | nerc-2023 |
| Division Avoidance | 1949H | Codeforces Gym | euc-2024 |
| Divisions divisions 8ee7605a-ad4d-8bad-14e1-90fa8423099f | 100753/F | Codeforces Gym | germany-2015 |
| DnD Dice dnddice 28b8c6c7-d3b3-4560-b3ad-11584a4cfa86 | 104466/D | Codeforces Gym | germany-2023 |
| Do It Yourself? | 104832/J | Codeforces Gym | japan-2023 |
| Dome of Circus | 101309/D | Codeforces Gym | neerc-2010 |
| Domination Devil | 104118/D | Codeforces Gym | manila-2022 |
| Dominoes | 106073/D | Codeforces Gym | brazil-first-phase-2025 |
| Dominoes | 1773D | Codeforces Gym | nerc-2022 |
| Donut Drone | 101620/D | Codeforces Gym | cerc-2017 |
| Don’t Burst the Balloon | 102014/H | Codeforces Gym | japan-2013 |
| Doodling doodling f51dd143-51bd-4a67-a85c-4b3529f4d1ef | 101556/E | Codeforces Gym | nordic-2010 |
| Doorman doorman 9cdda518-f7d1-4a54-a2ca-01dfd265741d | 100112/D | Codeforces Gym | nordic-2012 |
| Doorway | 2181D | Codeforces Gym | nerc-2025 |
| Double Deck doubledeck 7beedc9f-3927-417d-896d-46e8d8d0569e | 105431/D | Codeforces Gym | nordic-2024 |
| Double Elimination | 104848/G | Codeforces Gym | moscow-2021 |
| Double Up | 104757/F | Codeforces Gym | ecna-2023 |
| Doubloon Game | 101519/G | Codeforces Gym | bapc-2011 |
| Down the Pyramid downthepyramid e6da1c2b-f9a6-4e3e-91b5-d6f2569fb185 | 102021/D | Codeforces Gym | germany-2018 |
| Downsizing downsizing 12ea5bbc-e4f7-487c-93f3-2bdbd24285f6 | 104196/D | Codeforces Gym | ecna-2021 |
| Dragons | 104782/M | Codeforces Gym | romania-2023 |
| Dragons in Harmony | 106679/D | Codeforces Gym | brazil-first-phase-2026 |
| Dragon’s Cruller | 102014/E | Codeforces Gym | japan-2013 |
| Drain the Water Tank | 104128/M | Codeforces Gym | nanjing-2022 |
| Draughts draughts 198bc1d2-8bab-44aa-90fb-63dea9d52a98 | 100299/F | Codeforces Gym | cerc-2013 |
| Drawing Borders borders2 ed0401ec-0a74-4d9a-bdbd-3db685cfb083 | 101873/A | Codeforces Gym | germany-2017 |
| Dream Team | 101840/D, 101856/D | Codeforces Gym · Codeforces Gym | egypt-2017 |
| Dream Team | 101840/D, 101856/D | Codeforces Gym · Codeforces Gym | egypt-2017 |
| Dreamy Putata | 104976/I | Codeforces Gym | hangzhou-2023 |
| Driver Disagreement driverdisagreement 0f00c42d-d6ea-4e59-8126-40411d0a98ec | 102007/D | Codeforces Gym | bapc-2018 |
| Driving an Icosahedral Rover | 102004/E | Codeforces Gym | japan-2011 |
| Dropping Directions droppingdirections 91be10c6-cd94-4186-8cea-bb344ceee92d | 100526/D, 101512/D | Codeforces Gym · Codeforces Gym | bapc-2014 |
| Dropping Directions droppingdirections 91be10c6-cd94-4186-8cea-bb344ceee92d | 100526/D, 101512/D | Codeforces Gym · Codeforces Gym | bapc-2014 |
| Dropshipping | 106416/D | Codeforces Gym | lac-2026 |
| Drying Laundry | 104871/D | Codeforces Gym | cerc-2023 |
| Dull Chocolates | 101991/D | Codeforces Gym | acpc-2018 |
| Dune Dash dunedash b02a0537-e75a-4a51-bdd4-1b738294dbc1 | 106124/D | Codeforces Gym | nordic-2025 |
| Dungeon Dawdler dungeondawdler efd17c89-77fa-40fc-9129-87381a216907 | 105472/D | Codeforces Gym | nordic-2019 |
| Dunno | 100114/I | Codeforces Gym | central-russia-2012 |
| Duo Detection duodetection 8ee7605a-be50-8d77-0b79-15c0dc632c6d | 106160/D | Codeforces Gym | bapc-2025 |
| Duplicates | 1938E | Codeforces Gym | apc-2024 |
| Dush | 104782/L | Codeforces Gym | romania-2023 |
| E-Circuit Is Now on Sale! | 105633/E | Codeforces Gym | japan-2024 |
| Earthquake | 104673/C | Codeforces Gym | ctuo-2022 |
| Easter Eggs eastereggs 987c8612-9fca-431d-b904-7a3bb0aeb253 | 101666/E | Codeforces Gym | bapc-2017 |
| Easy As ABC | 1906A | Codeforces Gym | jakarta-2023 |
| Easy Assembly | 1773E | Codeforces Gym | nerc-2022 |
| Easy Chess | 1089E | Codeforces Gym | nerc-2018 |
| Easy Equation | 101173/E | Codeforces Gym | cerc-2016 |
| Easy Geometry | 100307/E | Codeforces Gym | neerc-2013 |
| Easy Problemset | 100851/E | Codeforces Gym | neerc-2015 |
| Easy Quest | 101630/E | Codeforces Gym | nerc-2017 |
| Eavesdropper Evasion eavesdropperevasion 8428b163-c472-4f8f-9129-456b49908552 | 104670/E | Codeforces Gym | nordic-2021 |
| Eco-driving ecodriving d07f3101-67c4-424d-bd15-203026525543 | 100112/E | Codeforces Gym | nordic-2012 |
| Edenland | 104782/D | Codeforces Gym | romania-2023 |
| Edit Distance | 102001/A | Codeforces Gym | jakarta-2018 |
| Eeny Meeny eenymeeny 6bdb61ad-470e-4257-9132-5beb092acecd | 105472/E | Codeforces Gym | nordic-2019 |
| Efficient Interception | 104848/K | Codeforces Gym | moscow-2021 |
| Eggfruit Cake | 102428/E | Codeforces Gym | central-america-2019 |
| Eggfruit Cake | 102428/E | Codeforces Gym | mexico-2019 |
| Egocentric Expedition egocentricexpedition 8ee7605a-66ab-867c-2e15-aa0a6bf99522 | 106797/E | Codeforces Gym | germany-2026 |
| Egyptian Equality egyptianequality be6cc48d-8aae-4e33-b61c-9332e68de420 | 106124/E | Codeforces Gym | nordic-2025 |
| Eidam-Sand Lair eidamsandlair 8448340c-6485-452a-bb45-90bd75008582 | 104783/I | Codeforces Gym | ctuo-2021 |
| Elapid Errands elapiderrands 43442af5-2593-45aa-ad68-1a742b88b079 | 105431/E | Codeforces Gym | nordic-2024 |
| Elections | 1267E | Codeforces Gym | nerc-2019 |
| Electric Vehicle | 102920/D | Codeforces Gym | korea-2020 |
| Electrical Pollution | 100540/E | Codeforces Gym | caribbean-2011 |
| Electrical Pollution | 100540/E | Codeforces Gym | central-america-2011 |
| Electricity | 100811/E | Codeforces Gym | ctuo-2004 |
| Electronic Components electroniccomponents 1279a3c7-8ebf-41d7-b6d5-c841a396102a | 105427/E | Codeforces Gym | nordic-2023 |
| Elevated Profits | 104736/E | Codeforces Gym | caribbean-2023 |
| Elevated Profits | 104736/E | Codeforces Gym | central-america-2023 |
| Elevated Profits | 104736/E | Codeforces Gym | mexico-2023 |
| Elevator Against Humanity | 2181E | Codeforces Gym | nerc-2025 |
| Elevator Trouble elevatortrouble a82d4ab4-9d04-404f-a63a-eb5bf11b2fa3 | 101555/D | Codeforces Gym | nordic-2011 |
| Eliminating Ballons | 103960/E | Codeforces Gym | brazil-first-phase-2022 |
| Embedding Enumeration | 101620/E | Codeforces Gym | cerc-2017 |
| Emergency Evacuation | 102082/C | Codeforces Gym | japan-2018 |
| Emergency Rations | 106178/E | Codeforces Gym | caribbean-2025 |
| Emergency Rations | 106178/E | Codeforces Gym | central-america-2025 |
| Emergency Rations | 106178/E | Codeforces Gym | mexico-2025 |
| Emoticons | 102780/C | Codeforces Gym | central-russia-2019 |
| Empty Squares | 104252/E | Codeforces Gym | caribbean-2022 |
| Empty Squares | 104252/E | Codeforces Gym | central-america-2022 |
| Empty Squares | 104252/E | Codeforces Gym | mexico-2022 |
| Emptying the Baltic emptyingbaltic c44ccb6f-07e9-459c-9970-6ff2b8661ace | 101572/E | Codeforces Gym | nordic-2017 |
| Encircling Circles | 102004/I | Codeforces Gym | japan-2011 |
| Encoded Coordinates encodedcoordinates f399ae12-4abe-4b6d-b162-83b41b72c0a7 | 100625/E | Codeforces Gym | bapc-2013 |
| Endless Turning endlessturning de3b3b82-e469-44f4-9c30-68a4aade9378 | 101490/F | Codeforces Gym | bapc-2016 |
| Enemy Division enemydivision c4b2026c-6dcf-4474-ab8c-f1c38622628e | 101555/J | Codeforces Gym | nordic-2011 |
| Engineering Excellence engineeringexcellence 8ee7605a-407e-89bd-05d3-648e0527ab73 | 106129/E | Codeforces Gym | germany-2025 |
| Enigma | 101908/E | Codeforces Gym | brazil-first-phase-2018 |
| Enigma | 101889/E | Codeforces Gym | central-america-2017 |
| Enigmatic Enumeration enigmaticenumeration 580ebdb4-aada-45a5-9bae-2ccc03e824a7 | 104030/E | Codeforces Gym | nordic-2022 |
| Enjoyable Entree enjoyableentree 8bf51fd4-3c0e-403a-85e2-6f7ea01d0ce6 | 104059/E | Codeforces Gym | germany-2022 |
| Enter The Dragon | 101487/E | Codeforces Gym | cerc-2010 |
| Entertainment Box entertainmentbox 0b213ecd-69af-4ecf-a391-60b41e0628ab | 100781/E | Codeforces Gym | nordic-2015 |
| Entirely Unsorted Sequences entirelyunsortedsequences c77307d1-3aa9-43ed-bcbc-fb3f4bc6b3de | 102007/E | Codeforces Gym | bapc-2018 |
| Epic Win! | 100553/E | Codeforces Gym | neerc-2014 |
| Equal Schedules | 104871/E | Codeforces Gym | cerc-2023 |
| Equal Sum Sets | 102014/A | Codeforces Gym | japan-2013 |
| Equalising Audio equalisingaudio 8ee7605a-4f89-844d-209a-d76ace1bf89e | 104020/E | Codeforces Gym | bapc-2022 |
| Equilibrium Point /\textbackslash/\textbackslash | 1510E, 102896/E | Codeforces Gym · Codeforces Gym | nerc-2020 |
| Equilibrium Point /\textbackslash/\textbackslash | 1510E, 102896/E | Codeforces Gym · Codeforces Gym | nerc-2020 |
| Equinox Roller Coaster | 101670/D | Codeforces Gym | ctuo-2017 |
| Erase Securely erase 15e750be-6658-4929-a97c-32377bfae8be | 101554/G | Codeforces Gym | nordic-ukiepc-2013 |
| Erasing Numbers | 102452/E | Codeforces Gym | hong-kong-2019 |
| Escala musical | 101889/E | Codeforces Gym | brazil-2017 |
| Escalator | 103388/E | Codeforces Gym | brazil-first-phase-2021 |
| Escalators | 101954/J | Codeforces Gym | ctuo-2018 |
| Escape escape 6039c2c7-51c2-4bef-bbc1-8cd1e4c59b9a | 100299/E | Codeforces Gym | cerc-2013 |
| Escape from Markov | 104118/E | Codeforces Gym | manila-2022 |
| Escape from the Minefield | 101518/C | Codeforces Gym | bapc-2009 |
| Estacionamento | 100540/E | Codeforces Gym | brazil-2011 |
| Eszett eszett f477b456-b479-4a5b-bd38-24cd6bae6ec5 | 104466/E | Codeforces Gym | germany-2023 |
| Etnetera Brevity Challenge | 101505/K | Codeforces Gym | ctuo-2016 |
| Eulerian Flight Tour | 102082/E | Codeforces Gym | japan-2018 |
| Evacuation Plan | 100002/E | Codeforces Gym | neerc-2002 |
| Evacuation Plan | 101309/E | Codeforces Gym | neerc-2010 |
| Evaluate It and Back Again | 1912E | Codeforces Gym | nerc-2023 |
| Evaluations | 101840/E, 101856/E | Codeforces Gym · Codeforces Gym | egypt-2017 |
| Evaluations | 101840/E, 101856/E | Codeforces Gym · Codeforces Gym | egypt-2017 |
| Eve | 100085/E | Codeforces Gym | neerc-2011 |
| Even Odd Game evenoddgame 8ee7605a-4eb1-8d67-1d25-b1231ddb69cb | 105394/E | Codeforces Gym | germany-2024 |
| Even Path | 1252C | Codeforces Gym | jakarta-2019 |
| Even Split | 1666E | Codeforces Gym | nerc-2021 |
| Evereth Expedition | 105505/E | Codeforces Gym | caribbean-2024 |
| Evereth Expedition | 105505/E | Codeforces Gym | central-america-2024 |
| Evereth Expedition | 105505/E | Codeforces Gym | mexico-2024 |
| Everyone out of the Pool | 100190/D | Codeforces Gym | ecna-2011 |
| Evil Coordinate | 102992/E | Codeforces Gym | nanjing-2020 |
| Exact Measurement | 100134/E | Codeforces Gym | neerc-2012 |
| Exam | 102788/H | Codeforces Gym | central-russia-2017 |
| Exam Study Planning examstudyplanning 8ee7605a-239c-8e5b-3a5e-42f3a2495bfa | 104790/E | Codeforces Gym | bapc-2023 |
| Excavation | 104713/D | Codeforces Gym | cerc-2020 |
| Excellent Engineers excellentengineers e835e60a-b089-4ac9-8626-feda299c22bd | 100526/E, 101512/E | Codeforces Gym · Codeforces Gym | bapc-2014 |
| Excellent Engineers excellentengineers e835e60a-b089-4ac9-8626-feda299c22bd | 100526/E, 101512/E | Codeforces Gym · Codeforces Gym | bapc-2014 |
| Excellent Views | 103185/E | Codeforces Gym | brazil-2020 |
| Excellent Views | 103185/E | Codeforces Gym | central-america-2020 |
| Excellent Views | 103185/E | Codeforces Gym | mexico-2020 |
| Exchange Rate | 106679/C | Codeforces Gym | brazil-first-phase-2026 |
| Exciting Business Opportunities | 105789/E | Codeforces Gym | lac-2025 |
| Exciting Menus | 101991/E | Codeforces Gym | acpc-2018 |
| Exclusive Access 2 | 100069/E | Codeforces Gym | neerc-2009 |
| Excruciating Elevators excruciatingelevators 8ee7605a-aafb-86fd-04d5-c93d58ac792a | 106160/E | Codeforces Gym | bapc-2025 |
| Excursion to Porvoo excursiontoporvoo 8cde4f4d-2b0f-4ef9-ac20-3eb063a9ff16 | 106167/E | Codeforces Gym | germany-2021 |
| Exhaustive Experiment exhaustiveexperiment 090882bc-bc97-4a31-927b-f9e009cfadfb | 105444/E | Codeforces Gym | nordic-2020 |
| Exhibition | 100803/J | Codeforces Gym | japan-2014 |
| Exhibition of Clownfish | 102428/E | Codeforces Gym | brazil-2019 |
| Exhibition of Clownfish | 102346/E | Codeforces Gym | brazil-first-phase-2019 |
| Expanding STACKS! | 105053/E | Codeforces Gym | lac-2024 |
| Expansion of the road network | 106073/E | Codeforces Gym | brazil-first-phase-2025 |
| Expect to Wait | 101190/E | Codeforces Gym | neerc-2016 |
| Expedition Plans | 103640/E | Codeforces Gym | brazil-2021 |
| Expedition Plans | 103640/E | Codeforces Gym | caribbean-2021 |
| Expedition Plans | 103640/E | Codeforces Gym | central-america-2021 |
| Expedition Plans | 103640/E | Codeforces Gym | mexico-2021 |
| Expired License expiredlicense 67f7b1a1-a831-450d-b1d2-2163ee8404a0 | 102021/E | Codeforces Gym | germany-2018 |
| Explosion Exploit explosion ce4dbfb3-bc69-457e-98f6-60adc4d59aff | 101933/E | Codeforces Gym | nordic-2018 |
| Exponial exponial b91cbfde-e4cf-41c7-a034-9a779b676da9 | 101550/E | Codeforces Gym | nordic-2016 |
| Export Estimate | 101480/E | Codeforces Gym | cerc-2015 |
| Expression Correction | 2052E | Codeforces Gym | nerc-2024 |
| Expressions | 104767/D | Codeforces Gym | ctuo-2023 |
| Extra Transition | 2206G | Codeforces Gym | apc-2026 |
| Extracting Pollen | 104555/E | Codeforces Gym | brazil-first-phase-2023 |
| Extraterrestrial Exploration extraterrestrialexploration 8ee7605a-9dd5-8e39-154a-117fbd98b82f | 105492/E | Codeforces Gym | bapc-2024 |
| Extreme Sort extremesort 8ee7605a-216f-80f1-2ad1-7bdc5feba7a2 | 100753/G | Codeforces Gym | germany-2015 |
| Eye Exam | 106416/E | Codeforces Gym | lac-2026 |
| Fabricating Sculptures | 102428/F | Codeforces Gym | central-america-2019 |
| Fabricating Sculptures | 102428/F | Codeforces Gym | mexico-2019 |
| Fabulous Fungus Frenzy | 104128/C | Codeforces Gym | nanjing-2022 |
| Factions vs The Hegemon | 104118/F | Codeforces Gym | manila-2022 |
| Factor-Full Tree factorfulltree f02066a7-2da3-40e6-834f-825bb0cb324d | 105427/F | Codeforces Gym | nordic-2023 |
| Factorial Simplification | 101309/F | Codeforces Gym | neerc-2010 |
| Factories Once More | 104128/H | Codeforces Gym | nanjing-2022 |
| Failing Factory failingfactory 8ee7605a-ccca-886d-3433-48fd5886c409 | 105492/F | Codeforces Gym | bapc-2024 |
| Failing Flagship failingflagship 8ee7605a-a49f-851c-1030-14b99bc28137 | 104020/F | Codeforces Gym | bapc-2022 |
| Fair Chocolate-Cutting | 102082/F | Codeforces Gym | japan-2018 |
| Fair Distribution | 105053/F | Codeforces Gym | lac-2024 |
| Fair Fruitcake Fragmenting fairfruitcake 8ee7605a-5dc8-840a-3976-ac00daf2087a | 105394/F | Codeforces Gym | germany-2024 |
| Fair and Square fairandsquare 8ee7605a-c554-8248-3270-f651becfa244 | 106129/F | Codeforces Gym | germany-2025 |
| Falcon Dive falcondive 6fdc2075-d74f-4076-bd54-62ffdac0969c | 100829/B | Codeforces Gym | ctuo-2015 |
| Falling Apart fallingapart afed17a7-b4ee-4206-b21d-1b6e7b584820 | 101666/F | Codeforces Gym | bapc-2017 |
| Falling Objects | 102452/F | Codeforces Gym | hong-kong-2019 |
| Fancy Stack | 1666F | Codeforces Gym | nerc-2021 |
| Farm and factory | 100624/F | Codeforces Gym | cerc-2012 |
| Fascinating Partitions | 103185/F | Codeforces Gym | brazil-2020 |
| Fascinating Partitions | 103185/F | Codeforces Gym | central-america-2020 |
| Fascinating Partitions | 103185/F | Codeforces Gym | mexico-2020 |
| Fase | 101889/F | Codeforces Gym | brazil-2017 |
| Fastminton | 102861/F | Codeforces Gym | brazil-first-phase-2020 |
| Fatigue-Fighting Vacation | 104555/F | Codeforces Gym | brazil-first-phase-2023 |
| Faulty Connection 8ee7605a-3eb0-8674-210e-d7847e78691d | 106160/F | Codeforces Gym | bapc-2025 |
| Faulty Factorial | 101620/F | Codeforces Gym | cerc-2017 |
| Favorite Tree | 104252/F | Codeforces Gym | caribbean-2022 |
| Favorite Tree | 104252/F | Codeforces Gym | central-america-2022 |
| Favorite Tree | 104252/F | Codeforces Gym | mexico-2022 |
| Feeding the Herrings herrings 19e1f61b-fe17-47b1-a628-afb0a813a9f8 | 100829/D | Codeforces Gym | ctuo-2015 |
| Fellow Sheep | 105442/K | Codeforces Gym | ctuo-2024 |
| Fence | 102788/L | Codeforces Gym | central-russia-2017 |
| Fence | 101505/E | Codeforces Gym | ctuo-2016 |
| Fence Fee fencefee 743c8c53-9300-4a2e-b586-3189ed85e181 | 105431/F | Codeforces Gym | nordic-2024 |
| Ferris Wheel | 104832/C | Codeforces Gym | japan-2023 |
| Festival Decorating | 104976/B | Codeforces Gym | hangzhou-2023 |
| Festival Signs | 105789/F | Codeforces Gym | lac-2025 |
| Fiber Shape | 1510F, 102896/F | Codeforces Gym · Codeforces Gym | nerc-2020 |
| Fiber Shape | 1510F, 102896/F | Codeforces Gym · Codeforces Gym | nerc-2020 |
| Fiboxor | 104782/E | Codeforces Gym | romania-2023 |
| Fields Division | 103640/F | Codeforces Gym | brazil-2021 |
| Fields Division | 103640/F | Codeforces Gym | caribbean-2021 |
| Fields Division | 103640/F | Codeforces Gym | central-america-2021 |
| Fields Division | 103640/F | Codeforces Gym | mexico-2021 |
| Fields and Farmers | 101487/F | Codeforces Gym | cerc-2010 |
| Fighting Fraud fightingfraud 8ee7605a-e95e-830f-3c6b-6d48ee1c8545 | 106797/F | Codeforces Gym | germany-2026 |
| Fighting Monsters fightingmonsters d2862f7a-26ee-49fc-8a45-edb315b0765f | 102021/F | Codeforces Gym | germany-2018 |
| File Retrieval | 100540/F | Codeforces Gym | caribbean-2011 |
| File Retrieval | 100540/F | Codeforces Gym | central-america-2011 |
| Film Critics filmcritics 1c911e7c-add2-45f6-9e38-19e7203c3379 | 105444/F | Codeforces Gym | nordic-2020 |
| Filter | 100553/F | Codeforces Gym | neerc-2014 |
| Financial Planning financialplanning cce1ffc8-6a68-41f6-a488-34340dac3981 | 102007/F | Codeforces Gym | bapc-2018 |
| Find String in a Grid | 1252D | Codeforces Gym | jakarta-2019 |
| Find the Multiples | 101413/F | Codeforces Gym | japan-2010 |
| Find the Outlier | 101412/D | Codeforces Gym | japan-2012 |
| Find the Treasure | 101519/C | Codeforces Gym | bapc-2011 |
| Finding Maximal Non-Trivial Monotones | 103960/A | Codeforces Gym | brazil-first-phase-2022 |
| Finding Privacy | 105505/F | Codeforces Gym | caribbean-2024 |
| Finding Privacy | 105505/F | Codeforces Gym | central-america-2024 |
| Finding Privacy | 105505/F | Codeforces Gym | mexico-2024 |
| Fine Trip | 104848/M | Codeforces Gym | moscow-2021 |
| Fire | 102471/D | Codeforces Gym | aec-2019 |
| Firepersons | 100811/F | Codeforces Gym | ctuo-2004 |
| Fireworks | 102992/F | Codeforces Gym | nanjing-2020 |
| Firing the Phaser firingphaser f8260bb1-6a9a-477a-987c-b9af90d2c9f5 | 101933/F | Codeforces Gym | nordic-2018 |
| Fishception | 105442/D | Codeforces Gym | ctuo-2024 |
| Fishing | 104797/E | Codeforces Gym | cerc-2021 |
| Fix Flooded Floor | 2052F | Codeforces Gym | nerc-2024 |
| Fixing Networks | 103119/F | Codeforces Gym | macau-2020 |
| Flag Bearer | 105442/A | Codeforces Gym | ctuo-2024 |
| Flappy Bird flappy 917fc717-890c-4623-bcfd-30ae5f8ede6d | 106167/F | Codeforces Gym | germany-2021 |
| Fleecing the Raffle raffle 519570b0-0c66-4ef0-bd61-f82f722bf83f | 101550/F | Codeforces Gym | nordic-2016 |
| Flight Planning flight df3b3626-5ff0-4e25-8bfd-bc70670c1e33 | 101557/G | Codeforces Gym | nordic-2009 |
| Flights | 100085/F | Codeforces Gym | neerc-2011 |
| Flip It! | 100644/B | Codeforces Gym | ecna-2010 |
| Flipper | 100645/D | Codeforces Gym | ecna-2009 |
| Flipping El-fetiera | 101991/F | Codeforces Gym | acpc-2018 |
| Flipping Parentheses | 100803/G | Codeforces Gym | japan-2014 |
| Floating Formation floatingformation fa29044c-897e-4d57-9063-41bfbdbb4820 | 100526/F, 101512/F | Codeforces Gym · Codeforces Gym | bapc-2014 |
| Floating Formation floatingformation fa29044c-897e-4d57-9063-41bfbdbb4820 | 100526/F, 101512/F | Codeforces Gym · Codeforces Gym | bapc-2014 |
| Floppy Music floppy c7975607-28e7-4992-8a7f-6d6d16cf185c | 100781/F | Codeforces Gym | nordic-2015 |
| Flow | 102471/E | Codeforces Gym | aec-2019 |
| Flow Finder flowfinder e844290b-2eff-4960-8d66-12457eed23c8 | 105472/F | Codeforces Gym | nordic-2019 |
| Flower | 106679/F | Codeforces Gym | brazil-first-phase-2026 |
| Fly Me To The Moon | 103119/H | Codeforces Gym | macau-2020 |
| Flying Safely flyingsafely 0443be59-28be-4167-a885-a99828cab022 | 100625/F | Codeforces Gym | bapc-2013 |
| Foco | 100540/F | Codeforces Gym | brazil-2011 |
| Folding | 100002/F | Codeforces Gym | neerc-2002 |
| Folding Machine | 101473/D | Codeforces Gym | brazil-first-phase-2013 |
| Follow the Bouncing Ball followthebouncingball | 104596/D | Codeforces Gym | ecna-2019 |
| Follower Forensics followerforensics c786514c-2e63-4c28-abfd-cf9b2bb827ff | 106124/F | Codeforces Gym | nordic-2025 |
| Food Review foodreview 6f712159-d871-4e82-ba10-7c213bd0c53c | 100112/F | Codeforces Gym | nordic-2012 |
| FoodSberry | 104848/L | Codeforces Gym | moscow-2021 |
| Foolprüf Security | 1267F | Codeforces Gym | nerc-2019 |
| Foosball Dynasty foosball | 101196/B | Codeforces Gym | ecna-2016 |
| Football | 1773F | Codeforces Gym | nerc-2022 |
| Foreign Football foreignfootball 3ee84623-5d48-4fb6-af95-939d34408bcb | 104030/F | Codeforces Gym | nordic-2022 |
| Foreign Postcards | 101190/F | Codeforces Gym | neerc-2016 |
| Forest Picture | 101670/E | Codeforces Gym | ctuo-2017 |
| Forest for the Trees | 104757/G | Codeforces Gym | ecna-2023 |
| Forests in Danger | 102428/F | Codeforces Gym | brazil-2019 |
| Forests in Danger | 102346/F | Codeforces Gym | brazil-first-phase-2019 |
| Forgot the Flag! | 101840/F, 101856/F | Codeforces Gym · Codeforces Gym | egypt-2017 |
| Forgot the Flag! | 101840/F, 101856/F | Codeforces Gym · Codeforces Gym | egypt-2017 |
| Forming Groups | 1938F | Codeforces Gym | apc-2024 |
| Formula Flatland formulaflatland 7bf012fb-dabb-48b6-9074-920cc2aaef6f | 104059/F | Codeforces Gym | germany-2022 |
| Fortune From Folly fortunefromfolly c2746a51-199f-4840-ac6a-d9c9c5293489 | 104670/F | Codeforces Gym | nordic-2021 |
| Fortune Telling | 104832/G | Codeforces Gym | japan-2023 |
| Forward and Backward | 104736/F | Codeforces Gym | caribbean-2023 |
| Forward and Backward | 104736/F | Codeforces Gym | central-america-2023 |
| Forward and Backward | 104736/F | Codeforces Gym | mexico-2023 |
| Four-Coloring | 102082/H | Codeforces Gym | japan-2018 |
| Fractal Streets | 101518/G | Codeforces Gym | bapc-2009 |
| Fractal Tree fractaltree 2f722929-e44e-4f0c-b96b-8b2c4baa9b29 | 101572/F | Codeforces Gym | nordic-2017 |
| Fractions | 1089F | Codeforces Gym | nerc-2018 |
| Fragmentation | 104767/E | Codeforces Gym | ctuo-2023 |
| Fragmented Nim | 2181F | Codeforces Gym | nerc-2025 |
| Frangolino ali na mesa | 106073/F | Codeforces Gym | brazil-first-phase-2025 |
| Fraud Busters | 100307/F | Codeforces Gym | neerc-2013 |
| Free Figurines | 101173/F | Codeforces Gym | cerc-2016 |
| Freedom from Prison | 103388/F | Codeforces Gym | brazil-first-phase-2021 |
| Freestyle Masonry freestylemasonry 90b41b8c-1f86-4453-95f3-5d513265d146 | 104466/F | Codeforces Gym | germany-2023 |
| Frightful Formula | 101480/F | Codeforces Gym | cerc-2015 |
| Froggy Ford | 100851/F | Codeforces Gym | neerc-2015 |
| Frozen Scoreboard | 104076/D | Codeforces Gym | jinan-2022 |
| Fugitive Frenzy | 1912F | Codeforces Gym | nerc-2023 |
| Fun with Balls | 106416/F | Codeforces Gym | lac-2026 |
| Fun with Stones | 103960/B | Codeforces Gym | brazil-first-phase-2022 |
| Function | 100114/G | Codeforces Gym | central-russia-2012 |
| Fundraising | 101889/F | Codeforces Gym | central-america-2017 |
| Funicular Frenzy funicularfrenzy 8ee7605a-86e8-83cc-30fc-3c5d85efab35 | 104790/F | Codeforces Gym | bapc-2023 |
| Funny Language | 100069/F | Codeforces Gym | neerc-2009 |
| Funny or Scary? | 1949D | Codeforces Gym | euc-2024 |
| Future Generation | 102001/J | Codeforces Gym | jakarta-2018 |
| Fuzzy Factorization | 106178/F | Codeforces Gym | caribbean-2025 |
| Fuzzy Factorization | 106178/F | Codeforces Gym | central-america-2025 |
| Fuzzy Factorization | 106178/F | Codeforces Gym | mexico-2025 |
| GATA-CAT | 106416/G | Codeforces Gym | lac-2026 |
| GCD Guessing Game | 100085/G | Codeforces Gym | neerc-2011 |
| GCDs | 100114/F | Codeforces Gym | central-russia-2012 |
| GPS gps 674b84c4-67bf-4bb1-befb-f60ceac5a216 | 102021/G | Codeforces Gym | germany-2018 |
| GPS I Love You | 100190/F | Codeforces Gym | ecna-2011 |
| GPS on a Flat Earth | 104736/G | Codeforces Gym | caribbean-2023 |
| GPS on a Flat Earth | 104736/G | Codeforces Gym | central-america-2023 |
| GPS on a Flat Earth | 104736/G | Codeforces Gym | mexico-2023 |
| Galactic Collegiate Programming Contest gcpc 75ab9d68-eda2-4cbe-99d0-00318bfc9d4b | 101572/G | Codeforces Gym | nordic-2017 |
| Galactic Warlords galactic 70912df1-3fd8-40d4-8333-577ccf03c0a4 | 100112/G | Codeforces Gym | nordic-2012 |
| Gallivanting Merchant | 104118/G | Codeforces Gym | manila-2022 |
| Gambling Game gamblinggame 2a33e6dd-9302-465f-8e85-d792e3533aa8 | 104196/E | Codeforces Gym | ecna-2021 |
| Gambling Guide | 101620/G | Codeforces Gym | cerc-2017 |
| Game | 102471/F | Codeforces Gym | aec-2019 |
| Game | 100540/M | Codeforces Gym | brazil-2011 |
| Game | 100540/M | Codeforces Gym | caribbean-2011 |
| Game | 100540/M | Codeforces Gym | central-america-2011 |
| Game | 101487/G | Codeforces Gym | cerc-2010 |
| Game Design | 102452/G | Codeforces Gym | hong-kong-2019 |
| Game Map | 101667/C | Codeforces Gym | korea-2017 |
| Game Night gamenight b6e2a382-cb93-4f84-84d3-343e64bec21e | 102007/G | Codeforces Gym | bapc-2018 |
| Game Rank gamerank 42239d8a-4450-49da-a8fc-b6600fa60fb1 | 101550/G | Codeforces Gym | nordic-2016 |
| Game Relics | 1267G | Codeforces Gym | nerc-2019 |
| Game Scheduling gamescheduling 0461c58e-3774-4530-8f25-eda6a6cbdfb2 | 101933/G | Codeforces Gym | nordic-2018 |
| Game Show! | 102861/G | Codeforces Gym | brazil-first-phase-2020 |
| Game of 10 | 101309/G | Codeforces Gym | neerc-2010 |
| Game of Gnomes gameofgnomes 55f6627d-a180-4206-8cbf-89d20a0a7c05 | 105472/G | Codeforces Gym | nordic-2019 |
| Game of Names | 106268/I | Codeforces Gym | japan-2025 |
| Game of Pieces | 105789/G | Codeforces Gym | lac-2025 |
| Game of Questions | 1773G | Codeforces Gym | nerc-2022 |
| Game of Slots | 103185/G | Codeforces Gym | brazil-2020 |
| Game of Slots | 103185/G | Codeforces Gym | central-america-2020 |
| Game of Slots | 103185/G | Codeforces Gym | mexico-2020 |
| Game of Stones | 104668/L | Codeforces Gym | cerc-2018 |
| Game on Graph | 101190/G | Codeforces Gym | neerc-2016 |
| Game on Sequence | 103119/G | Codeforces Gym | macau-2020 |
| Garbage In, Garbage Out 8ee7605a-3125-8e7a-0771-447eb3ae4291 | 106160/G | Codeforces Gym | bapc-2025 |
| Garbled Garden garbledgarden 8ee7605a-5d3e-8a5d-2639-6e07bdb49c51 | 106797/G | Codeforces Gym | germany-2026 |
| Garbling Game | 100069/G | Codeforces Gym | neerc-2009 |
| Garden Fence | 100540/G | Codeforces Gym | caribbean-2011 |
| Garden Fence | 100540/G | Codeforces Gym | central-america-2011 |
| Gas Reservoir | 106270/C | Codeforces Gym | dhaka-2025 |
| Gasoline | 101908/G | Codeforces Gym | brazil-first-phase-2018 |
| Gates | 100540/L | Codeforces Gym | brazil-2011 |
| Gates | 100540/L | Codeforces Gym | caribbean-2011 |
| Gates | 100540/L | Codeforces Gym | central-america-2011 |
| Gates of uncertainty | 101889/G | Codeforces Gym | central-america-2017 |
| Gathering Sharks | 2073J | Codeforces Gym | apc-2025 |
| Gearbox | 101518/B | Codeforces Gym | bapc-2009 |
| Generating Cool Passwords Company generatingcoolpasswordscompany 8ee7605a-523a-856a-358c-fc9760f83e69 | 106129/G | Codeforces Gym | germany-2025 |
| Generating patterns | 106073/G | Codeforces Gym | brazil-first-phase-2025 |
| Generator Tree | 103640/G | Codeforces Gym | brazil-2021 |
| Generator Tree | 103640/G | Codeforces Gym | caribbean-2021 |
| Generator Tree | 103640/G | Codeforces Gym | central-america-2021 |
| Generator Tree | 103640/G | Codeforces Gym | mexico-2021 |
| Generators | 100851/G | Codeforces Gym | neerc-2015 |
| Genes | 106679/G | Codeforces Gym | brazil-first-phase-2026 |
| Geohash Grid | 101173/G | Codeforces Gym | cerc-2016 |
| Geometric Balance | 2052G | Codeforces Gym | nerc-2024 |
| Geometric Gridlock geometricgridlock 8ee7605a-3fa0-8f55-2b6f-210f77c62819 | 105394/G | Codeforces Gym | germany-2024 |
| Geometric Map | 101415/E | Codeforces Gym | japan-2007 |
| Geometric Shapes | 100810/D | Codeforces Gym | ctuo-2007 |
| Geometry Game geometrygame 8ee7605a-ded9-8e8b-1044-5adc8914a0b2 | 104790/G | Codeforces Gym | bapc-2023 |
| Geometry of Triangles | 103960/G | Codeforces Gym | brazil-first-phase-2022 |
| German Conference for Public Counting germanconferenceforpubliccounting 660c3795-abd4-4d4b-800b-a3662bcfda93 | 104466/G | Codeforces Gym | germany-2023 |
| Getting Confidence | 102428/G | Codeforces Gym | brazil-2019 |
| Getting Confidence | 102346/G | Codeforces Gym | brazil-first-phase-2019 |
| Getting Through gettingthrough dfcb6646-c159-40d4-bbee-f9aca24b565b | 100625/G | Codeforces Gym | bapc-2013 |
| Getting in Shape | 103388/G | Codeforces Gym | brazil-first-phase-2021 |
| Ghost Busters | 100002/G | Codeforces Gym | neerc-2002 |
| Gift from the Goddess of Programming | 102004/A | Codeforces Gym | japan-2011 |
| Gifts from Knowledge | 104901/G | Codeforces Gym | jinan-2023 |
| Gig Combinatorics gigcombinatorics cebcdb67-88fe-464c-91e5-c377bbe67d53 | 105444/G | Codeforces Gym | nordic-2020 |
| Ginkgo Numbers | 101412/A | Codeforces Gym | japan-2012 |
| Ginástica | 101889/G | Codeforces Gym | brazil-2017 |
| Give Me an E | 100647/C | Codeforces Gym | ecna-2007 |
| Gleb and Liteyny Avenue | 104848/B | Codeforces Gym | moscow-2021 |
| Global Warming | 1666G | Codeforces Gym | nerc-2021 |
| Glorious Stadium | 101840/G, 101856/G | Codeforces Gym · Codeforces Gym | egypt-2017 |
| Glorious Stadium | 101840/G, 101856/G | Codeforces Gym · Codeforces Gym | egypt-2017 |
| Gluing Pictures | 102428/G | Codeforces Gym | central-america-2019 |
| Gluing Pictures | 102428/G | Codeforces Gym | mexico-2019 |
| Go | 102992/G | Codeforces Gym | nanjing-2020 |
| Go Latin | 101987/D | Codeforces Gym | korea-2018 |
| Go Make It Complete | 102001/G | Codeforces Gym | jakarta-2018 |
| Go Northwest! | 101670/I | Codeforces Gym | ctuo-2017 |
| Goblin Garden Guards goblingardenguards 9aa27464-fba0-4ab4-a25f-188ab9e8202c | 100781/G | Codeforces Gym | nordic-2015 |
| God Save the i-th Queen ith 8be6931c-658c-4735-9d89-a60c19e33c39 | 100790/I | Codeforces Gym | ctuo-2010 |
| God of the Vile Baskers | 100811/G | Codeforces Gym | ctuo-2004 |
| Going Dutch goingdutch 55e0bed9-7c2b-4e8c-9729-d380e9e08f57 | 101666/G | Codeforces Gym | bapc-2017 |
| Going to the Moon | 104871/G | Codeforces Gym | cerc-2023 |
| Gokigen Naname gokigen 3ead6515-2e55-4375-966e-83c0d3e23f96 | 101557/F | Codeforces Gym | nordic-2009 |
| Golem Coordinated Derby | 104767/F | Codeforces Gym | ctuo-2023 |
| Gomoku | 100553/G | Codeforces Gym | neerc-2014 |
| Good Morning! goodmorning 28e8db9a-83cd-4dbc-8d5c-a1ea43064394 | 100543/H | Codeforces Gym | cerc-2014 |
| Goose, Goose, DUCK? | 104172/E | Codeforces Gym | hong-kong-2022 |
| Gotta Trade Some of 'Em gottatradesomeofem 9ce87540-7788-4099-8ccc-e640b2178e1c | 106124/G | Codeforces Gym | nordic-2025 |
| Graduation Guarantee graduationguarantee b14ab50f-184f-4e4d-bef7-bfca4e0bc986 | 104030/G | Codeforces Gym | nordic-2022 |
| Grand Glory Race | 105505/G | Codeforces Gym | caribbean-2024 |
| Grand Glory Race | 105505/G | Codeforces Gym | central-america-2024 |
| Grand Glory Race | 105505/G | Codeforces Gym | mexico-2024 |
| Graph Partitioning 2 | 104901/B | Codeforces Gym | jinan-2023 |
| Graph of Maximum Degree 3 | 104891/D | Codeforces Gym | macau-2023 |
| Graphic Madness graphicmadness 3497ab1f-bea5-48b4-b6d3-b01b5473ce49 | 100624/K | Codeforces Gym | cerc-2012 |
| Gravitational Wave Detector | 104252/G | Codeforces Gym | caribbean-2022 |
| Gravitational Wave Detector | 104252/G | Codeforces Gym | central-america-2022 |
| Gravitational Wave Detector | 104252/G | Codeforces Gym | mexico-2022 |
| Grazed Grains grazedgrains 56c4d24f-bc3b-4069-bd1c-1d63afd80129 | 104670/G | Codeforces Gym | nordic-2021 |
| Great City Saint Petersburg | 1912G | Codeforces Gym | nerc-2023 |
| Great Geek Game-show 3000! greatgeekgameshow 0b287656-97d9-467c-995b-155f1157880e | 101556/G | Codeforces Gym | nordic-2010 |
| Great Treaty of Byteland | 104555/G | Codeforces Gym | brazil-first-phase-2023 |
| Greatest Chicken Dish | 101991/G | Codeforces Gym | acpc-2018 |
| Greatest of the Greatest Common Divisors | 105633/I | Codeforces Gym | japan-2024 |
| Greedy Drawers | 104686/G | Codeforces Gym | cerc-2022 |
| Greek Casino | 105053/G | Codeforces Gym | lac-2024 |
| Green Energy | 100307/G | Codeforces Gym | neerc-2013 |
| Green tea | 102780/A | Codeforces Gym | central-russia-2019 |
| Greenhouse Growth | 101480/G | Codeforces Gym | cerc-2015 |
| Gregory the Grasshopper grasshopper 727b486d-f1ba-43eb-95a6-55a2e96da3d4 | 100191/D, 100795/D | Codeforces Gym · Codeforces Gym | ctuo-2012 |
| Gregory the Grasshopper grasshopper 727b486d-f1ba-43eb-95a6-55a2e96da3d4 | 100191/D, 100795/D | Codeforces Gym · Codeforces Gym | ctuo-2012 |
| Gremlins attack! | 102785/B | Codeforces Gym | central-russia-2018 |
| Greta's Game | 2181G | Codeforces Gym | nerc-2025 |
| Grid Delivery griddelivery 6a8f3c34-e145-4cba-81ed-152cff95cfd9 | 106167/G | Codeforces Gym | germany-2021 |
| Grid Game 2 | 1906G | Codeforces Gym | jakarta-2023 |
| Grid Points | 104076/F | Codeforces Gym | jinan-2022 |
| Gridoland Power Gauge | 106178/G | Codeforces Gym | caribbean-2025 |
| Gridoland Power Gauge | 106178/G | Codeforces Gym | central-america-2025 |
| Gridoland Power Gauge | 106178/G | Codeforces Gym | mexico-2025 |
| Grinding Gravel grindinggravel 8ee7605a-2e14-8b4c-2a61-a907f6937e1d | 104020/G | Codeforces Gym | bapc-2022 |
| Grocery Greed grocerygreed 8ee7605a-fb1a-8b05-0e22-d1d6dcdc95d0 | 105492/G | Codeforces Gym | bapc-2024 |
| Groups of Strangers groupsofstrangers acc511a8-d2ef-45b5-9902-0ea779919a1c | 105427/G | Codeforces Gym | nordic-2023 |
| Grove | 1949A | Codeforces Gym | euc-2024 |
| Growing Some Oobleck growingsomeoobleck 4f1b3f5d-7ba1-411c-8096-3e8a39fbf13d | 104196/F | Codeforces Gym | ecna-2021 |
| Growling Gears growlinggears 76cc5449-9c62-4e30-b304-b1ef27698978 | 100526/G, 101512/G | Codeforces Gym · Codeforces Gym | bapc-2014 |
| Growling Gears growlinggears 76cc5449-9c62-4e30-b304-b1ef27698978 | 100526/G, 101512/G | Codeforces Gym · Codeforces Gym | bapc-2014 |
| Growth Factor | 2206I | Codeforces Gym | apc-2026 |
| Guarda Costeira | 100540/G | Codeforces Gym | brazil-2011 |
| Guess Cycle Length | 104090/I | Codeforces Gym | hangzhou-2022 |
| Guessing Game guessinggame4 91fcccd2-193c-4dfe-aa84-0ba8245f0afd | 104059/G | Codeforces Gym | germany-2022 |
| Guessing Passwords guessingpasswords dd5321e8-875c-441b-bfdb-aa69fda04cbd | 105431/G | Codeforces Gym | nordic-2024 |
| Guest Student | 1089G | Codeforces Gym | nerc-2018 |
| Guide | 1510G, 102896/G | Codeforces Gym · Codeforces Gym | nerc-2020 |
| Guide | 1510G, 102896/G | Codeforces Gym · Codeforces Gym | nerc-2020 |
| HIIT | 104118/H | Codeforces Gym | manila-2022 |
| Hack | 101630/H | Codeforces Gym | nerc-2017 |
| Hack Around the Lock hack ecb46828-bba9-4cfc-99b9-c18427c050c2 | 100790/H | Codeforces Gym | ctuo-2010 |
| Hack Protection | 100307/H | Codeforces Gym | neerc-2013 |
| Hacking the Screen screen de91b742-61e7-4ebe-b2d1-6be69405f9ce | 100829/I | Codeforces Gym | ctuo-2015 |
| Half Nice Years | 101840/H, 101856/H | Codeforces Gym · Codeforces Gym | egypt-2017 |
| Half Nice Years | 101840/H, 101856/H | Codeforces Gym · Codeforces Gym | egypt-2017 |
| Halting Wolf | 103185/H | Codeforces Gym | brazil-2020 |
| Halting Wolf | 103185/H | Codeforces Gym | central-america-2020 |
| Halting Wolf | 103185/H | Codeforces Gym | mexico-2020 |
| Hamilton - The Musical | 103640/H | Codeforces Gym | brazil-2021 |
| Hamilton - The Musical | 103640/H | Codeforces Gym | caribbean-2021 |
| Hamilton - The Musical | 103640/H | Codeforces Gym | central-america-2021 |
| Hamilton - The Musical | 103640/H | Codeforces Gym | mexico-2021 |
| Hamster | 104767/G | Codeforces Gym | ctuo-2023 |
| Hamster | 105442/F | Codeforces Gym | ctuo-2024 |
| Handling the Blocks | 103388/H | Codeforces Gym | brazil-first-phase-2021 |
| Hands of Poker | 101309/H | Codeforces Gym | neerc-2010 |
| Hangar Hurdles | 101173/H | Codeforces Gym | cerc-2016 |
| Hanging Hats | 101487/H | Codeforces Gym | cerc-2010 |
| Hanoi Tower | 100114/A | Codeforces Gym | central-russia-2012 |
| Hanoi Tower | 102785/E | Codeforces Gym | central-russia-2018 |
| Happiness | 102471/G | Codeforces Gym | aec-2019 |
| Happy Hookup happyhookup 8ee7605a-40ce-8c04-04c8-f183c4650863 | 106129/H | Codeforces Gym | germany-2025 |
| Happy Number | 101667/D | Codeforces Gym | korea-2017 |
| Hard Optimization | 1510H, 102896/H | Codeforces Gym · Codeforces Gym | nerc-2020 |
| Hard Optimization | 1510H, 102896/H | Codeforces Gym · Codeforces Gym | nerc-2020 |
| Hard Refactoring | 101190/H | Codeforces Gym | neerc-2016 |
| Hard choice | 101889/H | Codeforces Gym | central-america-2017 |
| Hardcore Hangman hardcorehangman 92e4b667-df2c-4a80-b03f-75c5d4fbf8b0 | 104059/H | Codeforces Gym | germany-2022 |
| Harder Horizons | 106178/H | Codeforces Gym | caribbean-2025 |
| Harder Horizons | 106178/H | Codeforces Gym | central-america-2025 |
| Harder Horizons | 106178/H | Codeforces Gym | mexico-2025 |
| Harder Satisfiability | 1089H | Codeforces Gym | nerc-2018 |
| Harmonic Operations | 105053/H | Codeforces Gym | lac-2024 |
| Harmonious Rectangle 1aea3183-979c-4e6d-a0de-da0588b3f592 | 102992/H | Codeforces Gym | nanjing-2020 |
| Harry the Hamster hamster 5f1bb45d-7523-4676-954a-c84d5fb50048 | 102007/H | Codeforces Gym | bapc-2018 |
| Hasty Santa Claus | 104849/A | Codeforces Gym | japan-2022 |
| Have You Driven a Fjord Lately? | 100190/G | Codeforces Gym | ecna-2011 |
| Hawawshi Decryption | 101991/H | Codeforces Gym | acpc-2018 |
| Headline Heat headlineheat 8ee7605a-7881-8cff-003f-3b431f4b1e68 | 105394/H | Codeforces Gym | germany-2024 |
| Headshot | 100069/H | Codeforces Gym | neerc-2009 |
| Health in Hazard | 104736/H | Codeforces Gym | caribbean-2023 |
| Health in Hazard | 104736/H | Codeforces Gym | central-america-2023 |
| Health in Hazard | 104736/H | Codeforces Gym | mexico-2023 |
| Hectic Harbour II harbour2 a9de6f73-c282-43e8-a95a-5ccc294a14be | 106167/H | Codeforces Gym | germany-2021 |
| Hedge Mazes | 100540/H | Codeforces Gym | caribbean-2011 |
| Hedge Mazes | 100540/H | Codeforces Gym | central-america-2011 |
| Help BerLine | 1267H | Codeforces Gym | nerc-2019 |
| Help a PhD candidate out! helpaphd a87ccb75-cbab-4773-bc86-1856a4ef3c24 | 101556/F | Codeforces Gym | nordic-2010 |
| Helping the Transit | 103960/H | Codeforces Gym | brazil-first-phase-2022 |
| Heraclosures | 105505/H | Codeforces Gym | caribbean-2024 |
| Heraclosures | 105505/H | Codeforces Gym | central-america-2024 |
| Heraclosures | 105505/H | Codeforces Gym | mexico-2024 |
| Herbalists | 100811/H | Codeforces Gym | ctuo-2004 |
| Here’s a Product Which Will Make You Tensor | 100645/F | Codeforces Gym | ecna-2009 |
| Hero Power heropower 1aaf9639-ba81-4e5b-af15-29d25e9f1685 | 100781/H | Codeforces Gym | nordic-2015 |
| Heroes Of Might And Magic | 100002/H | Codeforces Gym | neerc-2002 |
| Heroes of Might | 1666H | Codeforces Gym | nerc-2021 |
| Heroes of Velmar heroesofvelmar 3b0f2864-fc88-44eb-a477-750f4cd27bec | 105427/H | Codeforces Gym | nordic-2023 |
| Hidden Anagrams | 101158/D | Codeforces Gym | japan-2016 |
| Hidden Art hiddenart 8ee7605a-bb94-88c2-1b27-782ef51fe0c9 | 104790/H | Codeforces Gym | bapc-2023 |
| Hidden Camera hiddencamera f1a6a215-5b4c-40a3-beec-71e7d5cb0c74 | 100625/H | Codeforces Gym | bapc-2013 |
| Hidden Hierarchy | 101620/H | Codeforces Gym | cerc-2017 |
| Hidden Maze | 100553/H | Codeforces Gym | neerc-2014 |
| Hidden Permutation hiddenpermutation e90a9978-6e96-4452-83c7-c0bc6393b41b | 106124/H | Codeforces Gym | nordic-2025 |
| Hidden Tree | 102014/I | Codeforces Gym | japan-2013 |
| Hie with the Pie | 100648/B | Codeforces Gym | ecna-2006 |
| High Frequency | 106679/A | Codeforces Gym | brazil-first-phase-2026 |
| Highest Hill highesthill 299cceb3-ab5b-4c0e-b0a5-c3592cf5cea6 | 104030/H | Codeforces Gym | nordic-2022 |
| Highest Tower tower 6c1576a8-74a7-48f1-b020-482d147e524b | 101550/H | Codeforces Gym | nordic-2016 |
| Highway Combinatorics highwaycombinatorics 55c9134f-0386-4910-866c-24c5d2db9c38 | 104466/H | Codeforces Gym | germany-2023 |
| Highway Hassle highwayhassle 542d86a9-2db5-4ce4-bd39-68e429222bee | 100526/H, 101512/H | Codeforces Gym · Codeforces Gym | bapc-2014 |
| Highway Hassle highwayhassle 542d86a9-2db5-4ce4-bd39-68e429222bee | 100526/H, 101512/H | Codeforces Gym · Codeforces Gym | bapc-2014 |
| Hilbert's Hedge Maze hilbertshedgemaze | 104614/E | Codeforces Gym | ecna-2022 |
| Hipercampo | 101889/H | Codeforces Gym | brazil-2017 |
| Hiring Help hiringhelp a7d7c628-19e7-48ea-bbcf-931034352fbe | 104670/H | Codeforces Gym | nordic-2021 |
| Hiring and Firing hiringfiring a9b342b2-3cb2-47c6-a0a1-61a379445fe4 | 105444/H | Codeforces Gym | nordic-2020 |
| Historical Hits historicalhits 8ee7605a-c804-8f3b-1b73-3b6370a93a66 | 106797/H | Codeforces Gym | germany-2026 |
| History course | 100299/G | Codeforces Gym | cerc-2013 |
| Hit or Miss | 100651/C | Codeforces Gym | ecna-2004 |
| Hoarse Horses hoarsehorses 87ec4222-270e-4d35-98d3-45b2c1d7a4ce | 101666/H | Codeforces Gym | bapc-2017 |
| Hobby on Rails | 101414/I | Codeforces Gym | japan-2009 |
| Hold or Continue? | 102428/H | Codeforces Gym | central-america-2019 |
| Hold or Continue? | 102428/H | Codeforces Gym | mexico-2019 |
| Hold the Line | 102452/H | Codeforces Gym | hong-kong-2019 |
| Hold the Star | 2073F | Codeforces Gym | apc-2025 |
| Hole Punch | 102788/I | Codeforces Gym | central-russia-2017 |
| Holes and Tunnels | 106416/H | Codeforces Gym | lac-2026 |
| Homem, Elefante e Rato | 100540/H | Codeforces Gym | brazil-2011 |
| Homesick homesick 8ee7605a-84ab-8f26-1723-0f0a674542c0 | 106160/H | Codeforces Gym | bapc-2025 |
| Homework | 101986/H | Codeforces Gym | japan-2017 |
| Honest Worker | 104555/H | Codeforces Gym | brazil-first-phase-2023 |
| Honey Cake | 2181H | Codeforces Gym | nerc-2025 |
| Hopscotch Marathon | 103960/M | Codeforces Gym | brazil-first-phase-2022 |
| Horrible Restaurants | 105789/H | Codeforces Gym | lac-2025 |
| Horror List horror 18bbc06f-19d5-4a8e-a660-3cdd60dfca86 | 100112/H | Codeforces Gym | nordic-2012 |
| Horse Habitat horsehabitat 8ee7605a-1272-8a95-02ef-953d8ff3e21c | 105492/H | Codeforces Gym | bapc-2024 |
| Horse Race | 104252/H | Codeforces Gym | caribbean-2022 |
| Horse Race | 104252/H | Codeforces Gym | central-america-2022 |
| Horse Race | 104252/H | Codeforces Gym | mexico-2022 |
| Horsemeet | 101954/G | Codeforces Gym | ctuo-2018 |
| Hot Air Ballooning | 101505/B | Codeforces Gym | ctuo-2016 |
| Hot Hike hothike 21b234b6-d596-42ae-a0d2-4626bc4a8d0d | 105472/H | Codeforces Gym | nordic-2019 |
| Hot and Cold | 1773H | Codeforces Gym | nerc-2022 |
| Hotfix hotfix 8ee7605a-2e67-891b-1172-3665a1378c79 | 105431/H | Codeforces Gym | nordic-2024 |
| Hour for a Run | 102428/H | Codeforces Gym | brazil-2019 |
| Hour for a Run | 102346/H | Codeforces Gym | brazil-first-phase-2019 |
| Hourglass | 102780/G | Codeforces Gym | central-russia-2019 |
| House Lawn houselawn 8d3e8b55-fb25-4efd-96ec-c72e42964488 | 101933/H | Codeforces Gym | nordic-2018 |
| House Numbering housenumbering 8ee7605a-0d18-87ae-3669-6bc355d437b7 | 104020/H | Codeforces Gym | bapc-2022 |
| Hovering Hornet | 101480/H | Codeforces Gym | cerc-2015 |
| How Many to Be Happy? | 101667/E | Codeforces Gym | korea-2017 |
| How many squares? squares 5d85a1c0-22ea-4f7b-846e-dba060bd2215 | 100502/I | Codeforces Gym | nordic-ukiepc-2014 |
| How many teams? | 106073/H | Codeforces Gym | brazil-first-phase-2025 |
| Hubtown hubtown ac2c9e3f-a13b-4fd4-af6f-193a02d62898 | 101572/H | Codeforces Gym | nordic-2017 |
| Human Resources | 104871/H | Codeforces Gym | cerc-2023 |
| Hunting Hoglins in Hogwarts | 2052H | Codeforces Gym | nerc-2024 |
| Huzita Axiom 6 | 100085/H | Codeforces Gym | neerc-2011 |
| Hyper Illuminati hyperilluminati 47b17dcf-fad8-41b3-8209-7e063dc9a18a | 102021/H | Codeforces Gym | germany-2018 |
| Hypercatapult Commute | 1912H | Codeforces Gym | nerc-2023 |
| Hypercube | 100851/H | Codeforces Gym | neerc-2015 |
| Hypertheseus | 100810/I | Codeforces Gym | ctuo-2007 |
| I Conduit! | 100651/D | Codeforces Gym | ecna-2004 |
| I Just Want... One More... | 104901/E | Codeforces Gym | jinan-2023 |
| ICPC Board | 106268/J | Codeforces Gym | japan-2025 |
| ISBN Conversion | 104757/I | Codeforces Gym | ecna-2023 |
| Ice Igloos | 101480/I | Codeforces Gym | cerc-2015 |
| Ice cream samples | 101670/G | Codeforces Gym | ctuo-2017 |
| Ice-cream Knapsack | 101991/I | Codeforces Gym | acpc-2018 |
| Iceberg Orders | 100851/I | Codeforces Gym | neerc-2015 |
| Icy Itinerary icyitinerary 673481ad-0b3a-42ca-a6c9-9b00a96e980a | 104030/I | Codeforces Gym | nordic-2022 |
| Icy Land | 102001/D | Codeforces Gym | jakarta-2018 |
| Ideal Path | 101309/I | Codeforces Gym | neerc-2010 |
| Identical Parity | 104076/E | Codeforces Gym | jinan-2022 |
| Impartial Strings | 104757/H | Codeforces Gym | ecna-2023 |
| Impenetrable Wall | 103185/I | Codeforces Gym | brazil-2020 |
| Impenetrable Wall | 103185/I | Codeforces Gym | central-america-2020 |
| Impenetrable Wall | 103185/I | Codeforces Gym | mexico-2020 |
| Imperfect Imperial Units imperfectimperialunits 8ee7605a-f9b0-85ee-0a8a-4c06adbd7472 | 104020/I | Codeforces Gym | bapc-2022 |
| Imperial roads | 101889/I | Codeforces Gym | central-america-2017 |
| Import Spaghetti importspaghetti 82f101fc-0fb8-40e6-bc0e-370c3fc0c7aa | 101572/I | Codeforces Gym | nordic-2017 |
| Important matches | 101840/I, 101856/I | Codeforces Gym · Codeforces Gym | egypt-2017 |
| Important matches | 101840/I, 101856/I | Codeforces Gym · Codeforces Gym | egypt-2017 |
| Imposto Real | 101889/I | Codeforces Gym | brazil-2017 |
| Imprecise Computer | 102920/E | Codeforces Gym | korea-2020 |
| Improve SPAM | 102428/I | Codeforces Gym | central-america-2019 |
| Improve SPAM | 102428/I | Codeforces Gym | mexico-2019 |
| Improvements | 100553/I | Codeforces Gym | neerc-2014 |
| Improving IT improvingit 93a63a95-14ce-4a1a-9ea7-f292ece31383 | 104059/I | Codeforces Gym | germany-2022 |
| In Braille | 100540/I | Codeforces Gym | caribbean-2011 |
| In Braille | 100540/I | Codeforces Gym | central-america-2011 |
| In Case of an Invasion, Please... incaseofinvasion 9292bb04-418d-4a96-8107-b8f1a5d0c126 | 102007/I | Codeforces Gym | bapc-2018 |
| Incidente em Atlântida | 100540/I | Codeforces Gym | brazil-2011 |
| Incognito incognito 1fdf84df-e15c-47be-8f7b-eec45720a189 | 100625/I | Codeforces Gym | bapc-2013 |
| Incoming Asteroids | 102452/I | Codeforces Gym | hong-kong-2019 |
| Incompetent Delivery Guy | 2052I | Codeforces Gym | nerc-2024 |
| Incredible Hull | 104668/F | Codeforces Gym | cerc-2018 |
| Incredibly Cute Penguin Chicks | 104849/E | Codeforces Gym | japan-2022 |
| Incremental Induction incrementalinduction c4ff8083-71ae-4913-84be-be80ef7790b2 | 105472/I | Codeforces Gym | nordic-2019 |
| Incremented Itinerary incrementeditinerary 8ee7605a-6670-8230-3fef-7a6aeb63dde4 | 106797/I | Codeforces Gym | germany-2026 |
| Index Case indexcase b4074e65-aacc-462f-991d-e682304d7106 | 106167/I | Codeforces Gym | germany-2021 |
| Indiana Jones and the Uniform Cave | 101190/I | Codeforces Gym | neerc-2016 |
| Infallibly Crack Perplexing Cryptarithm | 101158/E | Codeforces Gym | japan-2016 |
| Infected Land | 101414/J | Codeforces Gym | japan-2009 |
| Infection Estimation infectionestimation e3a3d9ad-cc92-4065-b919-af1deb978c03 | 105444/I | Codeforces Gym | nordic-2020 |
| Infiltration infiltration ed5f8eae-b0e0-49bd-bcff-bc7952d9cbc6 | 100112/I | Codeforces Gym | nordic-2012 |
| Infiltration Route | 106178/I | Codeforces Gym | caribbean-2025 |
| Infiltration Route | 106178/I | Codeforces Gym | central-america-2025 |
| Infiltration Route | 106178/I | Codeforces Gym | mexico-2025 |
| Infinite Arrays | 105789/I | Codeforces Gym | lac-2025 |
| Infinite Cash infinitecash 7ea7341a-7f8c-4a8d-a29a-d3901fe0d9af | 105431/I | Codeforces Gym | nordic-2024 |
| Information Spread | 104857/L | Codeforces Gym | hefei-2023 |
| Inglish-Number Translator | 100811/I | Codeforces Gym | ctuo-2004 |
| Ink Mix | 102920/F | Codeforces Gym | korea-2020 |
| Inlay Cutters | 100002/I | Codeforces Gym | neerc-2002 |
| Innovative Washing Machine | 1912I | Codeforces Gym | nerc-2023 |
| Inscryption | 104128/G | Codeforces Gym | nanjing-2022 |
| Insects, Mathematics, Accuracy, and Efficiency | 105053/I | Codeforces Gym | lac-2024 |
| Insertions | 104686/H | Codeforces Gym | cerc-2022 |
| Inside the Guinea Pig Playpen | 106679/I | Codeforces Gym | brazil-first-phase-2026 |
| Inspection | 100069/I | Codeforces Gym | neerc-2009 |
| Instagraph instagraph 12981c73-1e28-4976-b057-f8f8aaf1d27c | 106124/I | Codeforces Gym | nordic-2025 |
| Insults | 101487/I | Codeforces Gym | cerc-2010 |
| Intact Intervals intactintervals c98d71d6-cae8-47ba-91bb-9fce0d20f04c | 104670/I | Codeforces Gym | nordic-2021 |
| Integer Perimeter | 104848/N | Codeforces Gym | moscow-2021 |
| Interactive Factorial Guessing | 1773I | Codeforces Gym | nerc-2022 |
| Interactive Interception | 100307/I | Codeforces Gym | neerc-2013 |
| Interactive Number Guessing | 104849/B | Codeforces Gym | japan-2022 |
| Interactive Permutation Guessing | 100085/I | Codeforces Gym | neerc-2011 |
| Interactive Reconstruction | 104871/I | Codeforces Gym | cerc-2023 |
| Interactive Sort | 101630/I | Codeforces Gym | nerc-2017 |
| Interactive Treasure Hunt | 1666I | Codeforces Gym | nerc-2021 |
| Interactivity | 102861/I | Codeforces Gym | brazil-first-phase-2020 |
| Intercepting Information | 103960/I | Codeforces Gym | brazil-first-phase-2022 |
| Interception interception 7e40a82f-d7c0-4bad-a8ab-b4a04a9f40f5 | 101550/I | Codeforces Gym | nordic-2016 |
| Interested in Skiing | 102992/I | Codeforces Gym | nanjing-2020 |
| Interesting Integers interestingintegers 78633e66-1503-49ae-bb0a-96f0476862bb | 100526/I, 101512/I | Codeforces Gym · Codeforces Gym | bapc-2014 |
| Interesting Integers interestingintegers 78633e66-1503-49ae-bb0a-96f0476862bb | 100526/I, 101512/I | Codeforces Gym · Codeforces Gym | bapc-2014 |
| Interesting numbers | 104454/J | Codeforces Gym | central-russia-2021 |
| Interference interference 8ee7605a-9add-8bda-015a-1c55130dbcb9 | 105394/I | Codeforces Gym | germany-2024 |
| Intergalactic Bidding intergalacticbidding 05e2a69e-e717-48c9-b68e-e7d80f9a7452 | 101933/I | Codeforces Gym | nordic-2018 |
| Intermill Logistics intermilllogistics 8ee7605a-558e-8d2b-00c4-33154456d692 | 106160/I | Codeforces Gym | bapc-2025 |
| International Irregularities internationalirregularities 8ee7605a-ac7c-8609-2435-b4ad58d4b619 | 104790/I | Codeforces Gym | bapc-2023 |
| Interplanetary | 102428/I | Codeforces Gym | brazil-2019 |
| Interplanetary | 102346/I | Codeforces Gym | brazil-first-phase-2019 |
| Interrail Pass interrailpass 8ee7605a-5203-89b2-1531-cd8bd0dcbef1 | 105492/I | Codeforces Gym | bapc-2024 |
| Intersection of Two Prisms | 101413/I | Codeforces Gym | japan-2010 |
| Intertwined intertwined 7b7b1f0b-75a8-468a-848e-d87b37458316 | 105427/I | Codeforces Gym | nordic-2023 |
| Interval-Free Permutations | 1089I | Codeforces Gym | nerc-2018 |
| Intriguing Identifiers | 100791/I | Codeforces Gym | ctuo-2009 |
| Intriguing Selection | 1267I | Codeforces Gym | nerc-2019 |
| Intrinsic Interval | 101620/I | Codeforces Gym | cerc-2017 |
| Inverse Topological Sort | 104891/E | Codeforces Gym | macau-2023 |
| Inversion Game | 106416/I | Codeforces Gym | lac-2026 |
| Inversion Insight | 105505/I | Codeforces Gym | caribbean-2024 |
| Inversion Insight | 105505/I | Codeforces Gym | central-america-2024 |
| Inversion Insight | 105505/I | Codeforces Gym | mexico-2024 |
| Inversions | 104736/I | Codeforces Gym | caribbean-2023 |
| Inversions | 104736/I | Codeforces Gym | central-america-2023 |
| Inversions | 104736/I | Codeforces Gym | mexico-2023 |
| Inverting Everything | 103388/I | Codeforces Gym | brazil-first-phase-2021 |
| Invested Money | 103640/I | Codeforces Gym | brazil-2021 |
| Invested Money | 103640/I | Codeforces Gym | caribbean-2021 |
| Invested Money | 103640/I | Codeforces Gym | central-america-2021 |
| Invested Money | 103640/I | Codeforces Gym | mexico-2021 |
| Investigating Frog Behaviour on Lily Pad Patterns investigatingfrogbehaviouronlilypadpatterns 4fb10631-cb27-477a-aeb3-35717a94f35e | 104466/I | Codeforces Gym | germany-2023 |
| Investigating Quadradômeda | 106073/I | Codeforces Gym | brazil-first-phase-2025 |
| Investigating Zeroes and Ones | 104555/I | Codeforces Gym | brazil-first-phase-2023 |
| Invisible Integers | 101173/I | Codeforces Gym | cerc-2016 |
| Irrational Division irrationaldivision ab0af7f9-aa35-4ed2-9047-2e34d2d3a633 | 101666/I | Codeforces Gym | bapc-2017 |
| Irrigation Interlock | 2181I | Codeforces Gym | nerc-2025 |
| Is It Rated? | 1510I, 102896/I | Codeforces Gym · Codeforces Gym | nerc-2020 |
| Is It Rated? | 1510I, 102896/I | Codeforces Gym · Codeforces Gym | nerc-2020 |
| Island | 100114/B | Codeforces Gym | central-russia-2012 |
| Island Urbanism islandurbanism 8ee7605a-1545-8102-1be5-8ef2be275754 | 106129/I | Codeforces Gym | germany-2025 |
| It's About Time itsabouttime | 104614/F | Codeforces Gym | ecna-2022 |
| Italian Calzone & Pasta Corner | 104252/I | Codeforces Gym | caribbean-2022 |
| Italian Calzone & Pasta Corner | 104252/I | Codeforces Gym | central-america-2022 |
| Italian Calzone & Pasta Corner | 104252/I | Codeforces Gym | mexico-2022 |
| Item Crafting | 104118/I | Codeforces Gym | manila-2022 |
| It’s Raining, Man | 101505/H | Codeforces Gym | ctuo-2016 |
| It’s Time for a Montage itstimeforamontage 9bf9818c-5db6-4ef9-b1d2-a1349cdc6cfb | 102021/I | Codeforces Gym | germany-2018 |
| JS Minification | 1089J | Codeforces Gym | nerc-2018 |
| Jack of All Trades | 100646/B | Codeforces Gym | ecna-2008 |
| Jacked Tickets | 101840/J, 101856/J | Codeforces Gym · Codeforces Gym | egypt-2017 |
| Jacked Tickets | 101840/J, 101856/J | Codeforces Gym · Codeforces Gym | egypt-2017 |
| Jacobi Numbers jacobinumbers 8ee7605a-56ad-8770-0f4f-45295add6d08 | 106160/J | Codeforces Gym | bapc-2025 |
| Jagged Skyline jaggedskyline 8ee7605a-78d6-83e2-164f-beaa9b78f07d | 104020/J | Codeforces Gym | bapc-2022 |
| Jailbreak jailbreak 0216a0b2-5fbc-4667-a781-a54f84130573 | 100625/J | Codeforces Gym | bapc-2013 |
| Jaime's Palace | 106416/J | Codeforces Gym | lac-2026 |
| Jamboree jamboree 08692076-ddfa-4ff5-99c6-daded28c79b5 | 105427/J | Codeforces Gym | nordic-2023 |
| Janitor Troubles janitortroubles e863aa22-6ff0-49e3-bd7f-669edaf2520b | 102007/J | Codeforces Gym | bapc-2018 |
| Japan Plotter Driver | 100811/J | Codeforces Gym | ctuo-2004 |
| Japanese Game | 1510J, 102896/J | Codeforces Gym · Codeforces Gym | nerc-2020 |
| Japanese Game | 1510J, 102896/J | Codeforces Gym · Codeforces Gym | nerc-2020 |
| Japanese Lottery japaneselottery 60d39a71-5c28-47ba-94c6-bacef22a2205 | 104466/J | Codeforces Gym | germany-2023 |
| Jar of Water Game | 102428/J | Codeforces Gym | brazil-2019 |
| Jar of Water Game | 102346/J | Codeforces Gym | brazil-first-phase-2019 |
| Java Certification | 100069/J | Codeforces Gym | neerc-2009 |
| Jazz Journey jazzjourney 9a4eec13-3f9d-484f-b789-6a1c6133a445 | 101173/J | Codeforces Gym | cerc-2016 |
| Jealous Youngsters jealousyoungsters d809e87d-c332-42f7-b45d-c099798915ce | 105472/J | Codeforces Gym | nordic-2019 |
| Jenga Boom | 101190/J | Codeforces Gym | neerc-2016 |
| Jesting Jabberwocky jestingjabberwocky 0e781489-62f9-464a-aa63-81b155ad39d8 | 104059/J | Codeforces Gym | germany-2022 |
| Jewel Grab | 103119/J | Codeforces Gym | macau-2020 |
| Jewel Heist jewelheist 0d72899e-6427-40b2-99e8-2e3ee4f5fe78 | 100624/G | Codeforces Gym | cerc-2012 |
| Jigsaw Present jigsawpresent 8ee7605a-a0c0-8415-2f5a-9a1b2bebe7da | 105394/J | Codeforces Gym | germany-2024 |
| Jigsaw Puzzle jigsawpuzzle2 4bc4f90a-1d58-4e47-81dc-78fcc341aad0 | 102021/J | Codeforces Gym | germany-2018 |
| Jigsaw of Shadows | 105505/J | Codeforces Gym | caribbean-2024 |
| Jigsaw of Shadows | 105505/J | Codeforces Gym | central-america-2024 |
| Jigsaw of Shadows | 105505/J | Codeforces Gym | mexico-2024 |
| Jinx or Jackpot | 2181J | Codeforces Gym | nerc-2025 |
| Job Allocator | 103185/J | Codeforces Gym | brazil-2020 |
| Job Allocator | 103185/J | Codeforces Gym | central-america-2020 |
| Job Allocator | 103185/J | Codeforces Gym | mexico-2020 |
| Job Lookup | 1666J | Codeforces Gym | nerc-2021 |
| Jogo de Boca | 101889/J | Codeforces Gym | brazil-2017 |
| Join the Conversation | 100307/J | Codeforces Gym | neerc-2013 |
| Joined Sessions joinedsessions 27b0e611-80e6-481d-835d-d559e4ed6eb3 | 106167/J | Codeforces Gym | germany-2021 |
| Joining Capitals | 101908/J | Codeforces Gym | brazil-first-phase-2018 |
| Joining Flows joiningflows c6c60357-203f-4196-9f3a-84b6953205c9 | 105444/J | Codeforces Gym | nordic-2020 |
| Joining Pairs | 103640/J | Codeforces Gym | brazil-2021 |
| Joining Pairs | 103640/J | Codeforces Gym | caribbean-2021 |
| Joining Pairs | 103640/J | Codeforces Gym | central-america-2021 |
| Joining Pairs | 103640/J | Codeforces Gym | mexico-2021 |
| Joining a Marathon | 104252/J | Codeforces Gym | caribbean-2022 |
| Joining a Marathon | 104252/J | Codeforces Gym | central-america-2022 |
| Joining a Marathon | 104252/J | Codeforces Gym | mexico-2022 |
| Joint Jog Jam jointjogjam 941b8977-99c4-4e22-b28a-699cb4c9742d | 104670/J | Codeforces Gym | nordic-2021 |
| Jokewithpermutation | 100553/J | Codeforces Gym | neerc-2014 |
| Journals | 104673/D | Codeforces Gym | ctuo-2022 |
| Journey | 100085/J | Codeforces Gym | neerc-2011 |
| Journey from Petersburg to Moscow | 101630/J | Codeforces Gym | nerc-2017 |
| Journey of the Robber | 104736/J | Codeforces Gym | caribbean-2023 |
| Journey of the Robber | 104736/J | Codeforces Gym | central-america-2023 |
| Journey of the Robber | 104736/J | Codeforces Gym | mexico-2023 |
| Journey to Jupiter | 101991/J | Codeforces Gym | acpc-2018 |
| Joy of Pokémon Observation | 1912J | Codeforces Gym | nerc-2023 |
| Joyride joyride 618e0b72-7335-4374-8ca0-ef2060004170 | 101873/C | Codeforces Gym | germany-2017 |
| Joys of Trading | 105053/J | Codeforces Gym | lac-2024 |
| João João | 106073/J | Codeforces Gym | brazil-first-phase-2025 |
| Judging Moose judgingmoose 1c2af525-333d-4245-b7bd-554b926431ec | 101572/J | Codeforces Gym | nordic-2017 |
| Judgmental Crowd | 106178/J | Codeforces Gym | caribbean-2025 |
| Judgmental Crowd | 106178/J | Codeforces Gym | central-america-2025 |
| Judgmental Crowd | 106178/J | Codeforces Gym | mexico-2025 |
| Judicious Watching | 2052J | Codeforces Gym | nerc-2024 |
| Juice juice c8f2f5cc-1f2f-47c8-8654-cacb91e0ef7e | 100112/J | Codeforces Gym | nordic-2012 |
| Juice Junctions d433ee37-2906-48fa-968f-fc6f650922fe | 101480/J | Codeforces Gym | cerc-2015 |
| Jumbled Compass compass 0a54c5e8-2311-43d0-ad77-4081c4239392 | 101550/J | Codeforces Gym | nordic-2016 |
| Jumbled Packets 8ee7605a-21bd-8a71-30ce-4ff82eca204f | 106129/J | Codeforces Gym | germany-2025 |
| Jumbled Scoreboards jumbledscoreboards 8ee7605a-24a4-816f-3a62-e652c75966e0 | 105492/J | Codeforces Gym | bapc-2024 |
| Jumbled Stacks | 104871/J | Codeforces Gym | cerc-2023 |
| Jumbled String jumbledstring 15fe75f1-ed75-4841-9ecb-41e282604763 | 101933/J | Codeforces Gym | nordic-2018 |
| Jumbled Trees | 1773J | Codeforces Gym | nerc-2022 |
| Jump | 100851/J | Codeforces Gym | neerc-2015 |
| Jump jump a8a11d2d-7005-42f1-812a-964ceef1e7b9 | 106124/J | Codeforces Gym | nordic-2025 |
| Jumping Choreography jumpingchoreography a5d222e8-ae85-4e3d-b62f-4822e66abb3a | 101666/J | Codeforces Gym | bapc-2017 |
| Jumping Frog | 101889/J | Codeforces Gym | central-america-2017 |
| Jumping Grasshopper | 102428/J | Codeforces Gym | central-america-2019 |
| Jumping Grasshopper | 102428/J | Codeforces Gym | mexico-2019 |
| Jumping Yoshi jumpingyoshi 1d5de5fc-7f31-4449-8d70-5db446988e36 | 100829/E | Codeforces Gym | ctuo-2015 |
| Jumping to Victory | 104555/J | Codeforces Gym | brazil-first-phase-2023 |
| Jungle Game junglegame 3363ab93-ee3a-448a-b100-f435ab28285d | 105431/J | Codeforces Gym | nordic-2024 |
| Jungle Job junglejob 8ee7605a-423e-8c01-1e4d-ad9dd941cd58 | 104790/J | Codeforces Gym | bapc-2023 |
| Jungle Outpost | 101309/J | Codeforces Gym | neerc-2010 |
| Junior Joining juniorjoining 8ee7605a-3628-8d48-3009-29f9877664f0 | 106797/J | Codeforces Gym | germany-2026 |
| Junior Mathematician | 102452/J | Codeforces Gym | hong-kong-2019 |
| Junior Steiner Three | 104118/J | Codeforces Gym | manila-2022 |
| Junk Journey junkjourney b8a83979-1b53-440f-830c-0b1b77099ef7 | 104030/J | Codeforces Gym | nordic-2022 |
| Jupiter Attacks! | 100540/J | Codeforces Gym | brazil-2011 |
| Jupiter Attacks! | 100540/J | Codeforces Gym | caribbean-2011 |
| Jupiter Attacks! | 100540/J | Codeforces Gym | central-america-2011 |
| Jury Jeopardy juryjeopardy afc1dedc-2890-4c48-9fc3-0f4fef472a9e | 100526/J, 101512/J | Codeforces Gym · Codeforces Gym | bapc-2014 |
| Jury Jeopardy juryjeopardy afc1dedc-2890-4c48-9fc3-0f4fef472a9e | 100526/J, 101512/J | Codeforces Gym · Codeforces Gym | bapc-2014 |
| Just Another Game of Stones | 102992/J | Codeforces Gym | nanjing-2020 |
| Just Arrange the Icons | 1267J | Codeforces Gym | nerc-2019 |
| Just Bootfall | 103388/J | Codeforces Gym | brazil-first-phase-2021 |
| Just Look Up | 105789/J | Codeforces Gym | lac-2025 |
| Just Passing Through justpassingthrough | 104596/E | Codeforces Gym | ecna-2019 |
| Just a Quiz justaquiz be92f34a-fc27-446e-b7d4-4d9674cee248 | 100781/J | Codeforces Gym | nordic-2015 |
| Just another array problem | 104454/N | Codeforces Gym | central-russia-2021 |
| Justice for All | 101487/J | Codeforces Gym | cerc-2010 |
| Justified Jungle | 101620/J | Codeforces Gym | cerc-2017 |
| K Co-prime Permutation | 102992/K | Codeforces Gym | nanjing-2020 |
| K-Graph Oddity | 101309/K | Codeforces Gym | neerc-2010 |
| K-equivalence | 100069/K | Codeforces Gym | neerc-2009 |
| K-ésimo | 101889/K | Codeforces Gym | brazil-2017 |
| K.O. Kids kokids 3bb82a1c-b282-489e-bbf2-4245e62352b9 | 104059/K | Codeforces Gym | germany-2022 |
| K==S | 104666/H | Codeforces Gym | cerc-2019 |
| KIARA is a Recursive Acronym | 103640/K | Codeforces Gym | brazil-2021 |
| KIARA is a Recursive Acronym | 103640/K | Codeforces Gym | caribbean-2021 |
| KIARA is a Recursive Acronym | 103640/K | Codeforces Gym | central-america-2021 |
| KIARA is a Recursive Acronym | 103640/K | Codeforces Gym | mexico-2021 |
| KMOP | 105053/K | Codeforces Gym | lac-2024 |
| KSumT | 104782/I | Codeforces Gym | romania-2023 |
| Kabaleo Lite | 100307/K | Codeforces Gym | neerc-2013 |
| Kaldorian Knights kaldorianknights 60d39a71-5c28-47ba-94c6-bacef22a2206 | 104466/K | Codeforces Gym | germany-2023 |
| Kalel, the Jumping Frog | 103960/K | Codeforces Gym | brazil-first-phase-2022 |
| Kapitan Amazing | 104118/K | Codeforces Gym | manila-2022 |
| Karaoke Compression karaokecompression 8ee7605a-2c20-8e43-2376-f4a10faa65a2 | 105492/K | Codeforces Gym | bapc-2024 |
| Karel the Robot | 100719/F | Codeforces Gym | ctuo-2014 |
| Karl Coder karlcoder 8c1457a1-9feb-4046-81b7-6bdf01d49cf7 | 105427/K | Codeforces Gym | nordic-2023 |
| Karlsruhe Skyline karlsruheskyline 8ee7605a-b81b-8fb7-27fc-e31d81dc4dfb | 106129/K | Codeforces Gym | germany-2025 |
| Kathmandu | 103388/K | Codeforces Gym | brazil-first-phase-2021 |
| Katryoshka | 101840/K, 101856/K | Codeforces Gym · Codeforces Gym | egypt-2017 |
| Katryoshka | 101840/K, 101856/K | Codeforces Gym · Codeforces Gym | egypt-2017 |
| Kayaking Trip kayaking dadb0608-704b-4e4f-a742-a4a2d39b96aa | 101572/K | Codeforces Gym | nordic-2017 |
| Keen on Order | 104736/K | Codeforces Gym | caribbean-2023 |
| Keen on Order | 104736/K | Codeforces Gym | central-america-2023 |
| Keen on Order | 104736/K | Codeforces Gym | mexico-2023 |
| Keep Calm And Carry Off keepcalmandcarryoff 81e1637c-3647-4fe1-b77d-872ec14d0df5 | 105444/K | Codeforces Gym | nordic-2020 |
| Keep Calm and Sell Balloons | 102428/K | Codeforces Gym | brazil-2019 |
| Keep Calm and Sell Balloons | 102346/K | Codeforces Gym | brazil-first-phase-2019 |
| Keep Fighting | 105789/K | Codeforces Gym | lac-2025 |
| Keep it Cool keepitcool 61229a07-789b-407d-b537-949438ee120c | 105472/K | Codeforces Gym | nordic-2019 |
| Keep it covered | 101889/K | Codeforces Gym | central-america-2017 |
| Keeping Cows keepingcows 8ee7605a-6455-8d54-3769-6822fd156620 | 106797/K | Codeforces Gym | germany-2026 |
| Keeping the Dogs Apart dogs 93df5027-e860-4f39-abf9-6cfe3c89424f | 101550/K | Codeforces Gym | nordic-2016 |
| Kepler | 101908/K | Codeforces Gym | brazil-first-phase-2018 |
| Kernel Knights | 101480/K | Codeforces Gym | cerc-2015 |
| Key Knocking | 101173/K | Codeforces Gym | cerc-2016 |
| Key Project | 102452/K | Codeforces Gym | hong-kong-2019 |
| Key Storage | 1267K | Codeforces Gym | nerc-2019 |
| Key to Knowledge keytoknowledge bf7fe0ba-3fb1-4af9-88cf-84c4845e1457 | 100526/K, 101512/K | Codeforces Gym · Codeforces Gym | bapc-2014 |
| Key to Knowledge keytoknowledge bf7fe0ba-3fb1-4af9-88cf-84c4845e1457 | 100526/K, 101512/K | Codeforces Gym · Codeforces Gym | bapc-2014 |
| Keyboard Queries keyboardqueries 7d87160e-80db-4edc-a3b3-dcf3321684f0 | 104030/K | Codeforces Gym | nordic-2022 |
| Keylogger | 103185/K | Codeforces Gym | brazil-2020 |
| Keylogger | 103185/K | Codeforces Gym | central-america-2020 |
| Keylogger | 103185/K | Codeforces Gym | mexico-2020 |
| Keys | 104871/K | Codeforces Gym | cerc-2023 |
| Khoshaf | 101991/K | Codeforces Gym | acpc-2018 |
| Kids Designing Kids | 101190/K | Codeforces Gym | neerc-2016 |
| Killjoys' Conference killjoys 6292cf75-e7c5-4a25-b3c2-42ffd123c4ad | 106167/K | Codeforces Gym | germany-2021 |
| Kim's Quest | 1912K | Codeforces Gym | nerc-2023 |
| Kind Baker | 104252/K | Codeforces Gym | caribbean-2022 |
| Kind Baker | 104252/K | Codeforces Gym | central-america-2022 |
| Kind Baker | 104252/K | Codeforces Gym | mexico-2022 |
| Kindergarten kindergarten de8ac055-b9c0-4134-a492-823429ceba2d | 100112/K | Codeforces Gym | nordic-2012 |
| King Kog’s Reception | 1089K | Codeforces Gym | nerc-2018 |
| King of the Hill kingofthehill 8ee7605a-f0a9-885a-335d-8bf4b0ca6490 | 104790/K | Codeforces Gym | bapc-2023 |
| King of the Waves kingofthewaves 29e7385b-9321-4266-887e-8931870205e6 | 101666/K | Codeforces Gym | bapc-2017 |
| King's Colors kingscolors 7ab26644-f0d1-4036-b51d-ac9f1e7b54ec | 101933/K | Codeforces Gym | nordic-2018 |
| King's Puzzle | 1773K | Codeforces Gym | nerc-2022 |
| King's Task | 1510K, 102896/K | Codeforces Gym · Codeforces Gym | nerc-2020 |
| King's Task | 1510K, 102896/K | Codeforces Gym · Codeforces Gym | nerc-2020 |
| Kingdom Partition | 1666K | Codeforces Gym | nerc-2021 |
| Kingdom Reunion | 100134/K | Codeforces Gym | neerc-2012 |
| Kingdom Roadmap | 100085/K | Codeforces Gym | neerc-2011 |
| Kingdoms kingdoms 48c2a9d1-83c6-4807-b8b9-3ae4e070916b | 100624/A | Codeforces Gym | cerc-2012 |
| Kingpin Escape kingpinescape 6f2fee33-9a89-457f-bc21-963e6a0dcbb6 | 102007/K | Codeforces Gym | bapc-2018 |
| Kings Conquest | 106178/K | Codeforces Gym | caribbean-2025 |
| Kings Conquest | 106178/K | Codeforces Gym | central-america-2025 |
| Kings Conquest | 106178/K | Codeforces Gym | mexico-2025 |
| King’s Inspection | 100851/K | Codeforces Gym | neerc-2015 |
| King’s Poker | 100540/K | Codeforces Gym | brazil-2011 |
| King’s Poker | 100540/K | Codeforces Gym | caribbean-2011 |
| King’s Poker | 100540/K | Codeforces Gym | central-america-2011 |
| Kinky Word Search kinkywordsearch 49d24ae0-8f63-4766-8141-0000983972ae | 104587/B | Codeforces Gym | ecna-2020 |
| Kiosk Construction kioskconstruction 8ee7605a-d064-81f2-1d48-6616fbad1468 | 104020/K | Codeforces Gym | bapc-2022 |
| Kitchen Cable Chaos kitchencablechaos e4560613-1563-4b19-9641-e4e1c24364bf | 102021/K | Codeforces Gym | germany-2018 |
| Kitchen Knobs | 101620/K | Codeforces Gym | cerc-2017 |
| Kitten Greetings | 106416/K | Codeforces Gym | lac-2026 |
| Kitten of Chaos kittenofchaos 8ee7605a-b82d-88a3-0f96-77678044a754 | 105394/K | Codeforces Gym | germany-2024 |
| Klee in Solitary Confinement | 103470/C | Codeforces Gym | nanjing-2021 |
| Knapsack Cryptosystem | 101630/K | Codeforces Gym | nerc-2017 |
| Knigs of the Forest knigsoftheforest b422e5fa-a48a-423a-8e58-6a14c8d726d8 | 101555/F | Codeforces Gym | nordic-2011 |
| Knit the Grid | 2181K | Codeforces Gym | nerc-2025 |
| Knitting Pattern knittingpattern 38d6e24a-67b6-4ad2-9683-1d305e502ec1 | 105431/K | Codeforces Gym | nordic-2024 |
| Knockout Racing | 100553/K | Codeforces Gym | neerc-2014 |
| Knockout, swiss and other kinds of tournaments | 106073/K | Codeforces Gym | brazil-first-phase-2025 |
| Knot Knowledge knotknowledge b5ef5445-db7a-45c2-926e-375d7bea4917 | 104670/K | Codeforces Gym | nordic-2021 |
| Know your Aliens | 102428/K | Codeforces Gym | central-america-2019 |
| Know your Aliens | 102428/K | Codeforces Gym | mexico-2019 |
| Knowing the Clock knowingtheclock 8ee7605a-ad31-8ffe-176d-154414e4884c | 106160/K | Codeforces Gym | bapc-2025 |
| Knowns and Unknowns | 2052K | Codeforces Gym | nerc-2024 |
| Kolonie | 100719/A | Codeforces Gym | ctuo-2014 |
| Kool Strings | 105505/K | Codeforces Gym | caribbean-2024 |
| Kool Strings | 105505/K | Codeforces Gym | central-america-2024 |
| Kool Strings | 105505/K | Codeforces Gym | mexico-2024 |
| LCG Manipulation | 104118/L | Codeforces Gym | manila-2022 |
| LCR | 100646/C | Codeforces Gym | ecna-2008 |
| LCS Spanning Tree | 104373/I | Codeforces Gym | macau-2021 |
| LED | 101987/E | Codeforces Gym | korea-2018 |
| LED Counter | 105789/L | Codeforces Gym | lac-2025 |
| LED Matrix | 105053/L | Codeforces Gym | lac-2024 |
| LLM Training | 2181L | Codeforces Gym | nerc-2025 |
| LLMs | 106073/L | Codeforces Gym | brazil-first-phase-2025 |
| LOL Lovers | 1912L | Codeforces Gym | nerc-2023 |
| Labelled Paths | 104871/L | Codeforces Gym | cerc-2023 |
| Laboratório de biotecnologia | 101889/L | Codeforces Gym | brazil-2017 |
| Labour Laws labourlaws 8ee7605a-7cc9-8d39-0435-547cf48e4732 | 106129/L | Codeforces Gym | germany-2025 |
| Labyrinth | 1666L | Codeforces Gym | nerc-2021 |
| Laminar Family | 101630/L | Codeforces Gym | nerc-2017 |
| Land Trade | 104891/F | Codeforces Gym | macau-2023 |
| Landscape Improved | 100851/L | Codeforces Gym | neerc-2015 |
| Lanes | 100085/L | Codeforces Gym | neerc-2011 |
| Language Survey languagesurvey 1c5e6751-1d1e-4258-9813-2410cf5af9ae | 105444/L | Codeforces Gym | nordic-2020 |
| Largest Digit | 104901/D | Codeforces Gym | jinan-2023 |
| Laser Trap | 104373/C | Codeforces Gym | macau-2021 |
| Latam++ | 104736/L | Codeforces Gym | caribbean-2023 |
| Latam++ | 104736/L | Codeforces Gym | central-america-2023 |
| Latam++ | 104736/L | Codeforces Gym | mexico-2023 |
| Late and Disobedient | 106416/L | Codeforces Gym | lac-2026 |
| Latin Squares | 105505/L | Codeforces Gym | caribbean-2024 |
| Latin Squares | 105505/L | Codeforces Gym | central-america-2024 |
| Latin Squares | 105505/L | Codeforces Gym | mexico-2024 |
| Laundry laundry 8ee7605a-fa18-8cfa-3de6-fef57797b8fd | 105394/L | Codeforces Gym | germany-2024 |
| Lavaspar | 102861/L | Codeforces Gym | brazil-first-phase-2020 |
| Lazy ERCD | 101840/L, 101856/L | Codeforces Gym · Codeforces Gym | egypt-2017 |
| Lazy ERCD | 101840/L, 101856/L | Codeforces Gym · Codeforces Gym | egypt-2017 |
| Lazy Printing | 104252/L | Codeforces Gym | caribbean-2022 |
| Lazy Printing | 104252/L | Codeforces Gym | central-america-2022 |
| Lazy Printing | 104252/L | Codeforces Gym | mexico-2022 |
| Lazyland | 1089L | Codeforces Gym | nerc-2018 |
| Leaving Yharnam | 103640/L | Codeforces Gym | brazil-2021 |
| Leaving Yharnam | 103640/L | Codeforces Gym | caribbean-2021 |
| Leaving Yharnam | 103640/L | Codeforces Gym | central-america-2021 |
| Leaving Yharnam | 103640/L | Codeforces Gym | mexico-2021 |
| Legacy Code legacycode 8ee7605a-2cb4-8752-178b-aacdc41f80c4 | 100753/H | Codeforces Gym | germany-2015 |
| Legacy Screensaver | 2052L | Codeforces Gym | nerc-2024 |
| Lemmings, Lemmings Everywhere. But Not For Long. | 100647/D | Codeforces Gym | ecna-2007 |
| Lemonade Trade lemonadetrade bdfccce4-8e71-4e57-91a9-6fb07824306e | 101666/L | Codeforces Gym | bapc-2017 |
| Lengthy Traveling Salesman | 100719/I | Codeforces Gym | ctuo-2014 |
| Less Coin Tosses | 102428/L | Codeforces Gym | brazil-2019 |
| Less Coin Tosses | 102346/L | Codeforces Gym | brazil-first-phase-2019 |
| Let There Be Light | 101412/G | Codeforces Gym | japan-2012 |
| Let's Play Curling | 102992/L | Codeforces Gym | nanjing-2020 |
| Letter Lies | 100791/L | Codeforces Gym | ctuo-2009 |
| Letters | 104797/F | Codeforces Gym | cerc-2021 |
| Levelling Locks levellinglocks 8ee7605a-b249-83bb-1034-2f641c75c499 | 105492/L | Codeforces Gym | bapc-2024 |
| Levenshtein Distance | 104090/L | Codeforces Gym | hangzhou-2022 |
| Leverage MDT | 102428/L | Codeforces Gym | central-america-2019 |
| Leverage MDT | 102428/L | Codeforces Gym | mexico-2019 |
| Lexical Sign Sequence | 102001/H | Codeforces Gym | jakarta-2018 |
| Lexicographical Challenge | 104555/L | Codeforces Gym | brazil-first-phase-2023 |
| Lexicography | 1267L | Codeforces Gym | nerc-2019 |
| Lie Detector | 102001/I | Codeforces Gym | jakarta-2018 |
| Light Emitting Hindenburg | 104666/G | Codeforces Gym | cerc-2019 |
| Lighting | 101954/F | Codeforces Gym | ctuo-2018 |
| Linearville | 101889/L | Codeforces Gym | central-america-2017 |
| Lines in a grid | 104797/G | Codeforces Gym | cerc-2021 |
| Lines of Containers | 101473/G | Codeforces Gym | brazil-first-phase-2013 |
| Linguistic Labyrinth linguisticlabyrinth 8ee7605a-c95e-8508-0b45-0956fa70df0e | 106160/L | Codeforces Gym | bapc-2025 |
| Linguistics Puzzle | 104857/I | Codeforces Gym | hefei-2023 |
| Link-Cut Tree | 104373/K | Codeforces Gym | macau-2021 |
| Liquid Distribution | 104832/I | Codeforces Gym | japan-2023 |
| Lisa the Ladybug ladybug cc64bf29-da0f-4d19-aaf8-c12ff389e46a | 100191/E, 100795/E | Codeforces Gym · Codeforces Gym | ctuo-2012 |
| Lisa the Ladybug ladybug cc64bf29-da0f-4d19-aaf8-c12ff389e46a | 100191/E, 100795/E | Codeforces Gym · Codeforces Gym | ctuo-2012 |
| Lisa's Sequences | 1773L | Codeforces Gym | nerc-2022 |
| List of Primes | 101190/L | Codeforces Gym | neerc-2016 |
| Listing Passwords | 103388/L | Codeforces Gym | brazil-first-phase-2021 |
| Listing Tedious Paths | 103960/L | Codeforces Gym | brazil-first-phase-2022 |
| Locker Room | 101954/E | Codeforces Gym | ctuo-2018 |
| Locking Doors lockingdoors 8ee7605a-20bf-85b9-3d2c-c92f41993794 | 104790/L | Codeforces Gym | bapc-2023 |
| Locust Locus locustlocus 76f8e3bf-4aa0-4aaf-88bd-20142c124fe4 | 104670/L | Codeforces Gym | nordic-2021 |
| Lodê | 100719/D | Codeforces Gym | ctuo-2014 |
| Logic Puzzle logicpuzzle 6d86b99e-958d-472c-9669-41c0827cb140 | 102021/L | Codeforces Gym | germany-2018 |
| Lola’s Schedule | 103185/L | Codeforces Gym | brazil-2020 |
| Lola’s Schedule | 103185/L | Codeforces Gym | central-america-2020 |
| Lola’s Schedule | 103185/L | Codeforces Gym | mexico-2020 |
| Lonely Creatures | 106178/L | Codeforces Gym | caribbean-2025 |
| Lonely Creatures | 106178/L | Codeforces Gym | central-america-2025 |
| Lonely Creatures | 106178/L | Codeforces Gym | mexico-2025 |
| Long Distance Taxi | 102004/D | Codeforces Gym | japan-2011 |
| Longest Chain | 102014/G | Codeforces Gym | japan-2013 |
| Looking for Taste | 101991/L | Codeforces Gym | acpc-2018 |
| Looking for Waldo lookingforwaldo 5c7af91c-c256-42c0-9a86-cb18a27094ff | 106167/L | Codeforces Gym | germany-2021 |
| Lookup Performance | 102896/L | Codeforces Gym | nerc-2020 |
| Loop Invariant loopinvariant b168aa78-b910-407d-b6f1-a21f08ec342c | 104466/L | Codeforces Gym | germany-2023 |
| Looping Labyrinth | 101480/L | Codeforces Gym | cerc-2015 |
| Lost Logic | 101173/L | Codeforces Gym | cerc-2016 |
| Lost in Translation lost | 101196/D | Codeforces Gym | ecna-2016 |
| Lots of Land lotsofland 1424554e-3398-438c-b5ea-05d968bdde8b | 104059/L | Codeforces Gym | germany-2022 |
| Love Marriage | 106270/E | Codeforces Gym | dhaka-2025 |
| Lowest Latency 8ee7605a-df73-82c7-16ae-4158a2b14678 | 104020/L | Codeforces Gym | bapc-2022 |
| Lowest Pyramid | 101415/D | Codeforces Gym | japan-2007 |
| Lucky or not? | 104452/C | Codeforces Gym | central-russia-2020 |
| Luggage luggage bf38f0f3-a926-49dd-93ab-1c7208ea890e | 100112/L | Codeforces Gym | nordic-2012 |
| Lunar Landscape | 101620/L | Codeforces Gym | cerc-2017 |
| Lunch Menu | 100829/F | Codeforces Gym | ctuo-2015 |
| Lyrical Leisure lyricalleisure 8ee7605a-1b86-85f2-04c1-fd6fb6887db8 | 106797/L | Codeforces Gym | germany-2026 |
| L∞ Jumps | 100803/K | Codeforces Gym | japan-2014 |
| Machine Gun | 102861/M | Codeforces Gym | brazil-first-phase-2020 |
| Mad Diamond maddiamond 9062a968-a14d-40bd-b11e-c07258fb0b95 | 104783/D | Codeforces Gym | ctuo-2021 |
| Magic football | 102788/C | Codeforces Gym | central-russia-2017 |
| Magical GCD magicalgcd 211af451-9f05-4d55-a81f-fa91afd10aa2 | 100299/C | Codeforces Gym | cerc-2013 |
| Mahershalalhashbaz, Nebuchadnezzar, and Billy Bob Benjamin Go to the Regionals | 100648/C | Codeforces Gym | ecna-2006 |
| Make Triangle | 1949K | Codeforces Gym | euc-2024 |
| Make a Loop | 104849/F | Codeforces Gym | japan-2022 |
| Making Perimeter of the Convex Hull Shortest | 101986/D | Codeforces Gym | japan-2017 |
| Malfatti Circles | 101414/G | Codeforces Gym | japan-2009 |
| Managing Cluster | 2052M | Codeforces Gym | nerc-2024 |
| Manhattan Mornings manhattanmornings e0aa482f-16e5-4ec2-8e2b-62a3716e3f9e | 101666/M | Codeforces Gym | bapc-2017 |
| Manhattan Positioning System manhattanpositioningsystem 3166df0b-8273-49e4-bd6e-53b8ee527874 | 101490/G | Codeforces Gym | bapc-2016 |
| Many Many Heads | 104901/A | Codeforces Gym | jinan-2023 |
| Maratona Brasileira de Popcorn | 102428/M | Codeforces Gym | brazil-2019 |
| Maratona Brasileira de Popcorn | 102346/M | Codeforces Gym | brazil-first-phase-2019 |
| Marblecoin | 101889/M | Codeforces Gym | central-america-2017 |
| Marbles | 101908/B | Codeforces Gym | brazil-first-phase-2018 |
| Marvelous Marathon marvelousmarathon 0873604f-1460-4fe5-a4b4-362bbb330b52 | 104670/M | Codeforces Gym | nordic-2021 |
| Mascot Naming | 2068F | Codeforces Gym | euc-2025 |
| Master of Both | 104090/K | Codeforces Gym | hangzhou-2022 |
| Master of Both V | 104976/L | Codeforces Gym | hangzhou-2023 |
| Math Trade mathtrade 716d7958-40ed-4b34-a14d-22014d62f9f3 | 104587/C | Codeforces Gym | ecna-2020 |
| Matrice | 104668/J | Codeforces Gym | cerc-2018 |
| Matrix Calculator | 101413/J | Codeforces Gym | japan-2010 |
| Matrix Distances | 104857/E | Codeforces Gym | hefei-2023 |
| Maximize The Value | 1906F | Codeforces Gym | jakarta-2023 |
| Maximizing Flight Efficiency | 104555/M | Codeforces Gym | brazil-first-phase-2023 |
| Maximum Distance | 104782/A | Codeforces Gym | romania-2023 |
| Maximum GCD | 104172/K | Codeforces Gym | hong-kong-2022 |
| May I Add a Letter? | 103185/M | Codeforces Gym | brazil-2020 |
| May I Add a Letter? | 103185/M | Codeforces Gym | central-america-2020 |
| May I Add a Letter? | 103185/M | Codeforces Gym | mexico-2020 |
| Maze | 106679/L | Codeforces Gym | brazil-first-phase-2026 |
| Maze | 100644/C | Codeforces Gym | ecna-2010 |
| Maze in Bolt | 104252/M | Codeforces Gym | caribbean-2022 |
| Maze in Bolt | 104252/M | Codeforces Gym | central-america-2022 |
| Maze in Bolt | 104252/M | Codeforces Gym | mexico-2022 |
| Measuring Problem Difficulty difficult 05201a36-2910-4a5c-aa86-db4502fe6052 | 100790/D | Codeforces Gym | ctuo-2010 |
| Medical Checkup | 101986/C | Codeforces Gym | japan-2017 |
| Medical Parity | 2181M | Codeforces Gym | nerc-2025 |
| Meeting Point | 104736/M | Codeforces Gym | caribbean-2023 |
| Meeting Point | 104736/M | Codeforces Gym | central-america-2023 |
| Meeting Point | 104736/M | Codeforces Gym | mexico-2023 |
| Mega Inversions megainversions e1258f6a-2eaf-4a3a-b5bd-73ad4614c88a | 101555/B | Codeforces Gym | nordic-2011 |
| Membership Management | 101413/A | Codeforces Gym | japan-2010 |
| Membership Structure of a Secret Society | 106268/K | Codeforces Gym | japan-2025 |
| Men's showdown | 102780/H | Codeforces Gym | central-russia-2019 |
| Merge Not Sort | 1906E | Codeforces Gym | jakarta-2023 |
| Meson Collider | 102785/K | Codeforces Gym | central-russia-2018 |
| Message | 101516/B | Codeforces Gym | bapc-2008 |
| Methodic Multiplication methodicmultiplication 7fc06555-a4c1-46de-9af0-ea8b4147f03e | 105444/M | Codeforces Gym | nordic-2020 |
| Mex Hex mexhex 8ee7605a-7f95-888e-3be5-2b88ee551e8a | 106129/M | Codeforces Gym | germany-2025 |
| Microwave | 106679/M | Codeforces Gym | brazil-first-phase-2026 |
| Milestones | 100114/H | Codeforces Gym | central-russia-2012 |
| Milling machines milling 8ee7605a-44d9-81e9-2f68-1552cc5f6aad | 100753/I | Codeforces Gym | germany-2015 |
| Minas Gerais' walls | 106073/M | Codeforces Gym | brazil-first-phase-2025 |
| Minegraphed | 1089M | Codeforces Gym | nerc-2018 |
| Minesweeper String | 2206F | Codeforces Gym | apc-2026 |
| Minimal Backgammon | 101415/C | Codeforces Gym | japan-2007 |
| Minimize Sum | 104782/G | Codeforces Gym | romania-2023 |
| Minimizing Wildlife Damage | 106268/B | Codeforces Gym | japan-2025 |
| Minus Operator | 2073E | Codeforces Gym | apc-2025 |
| Mirror Madness mirrormadness 5e9286ad-3fd2-42da-b3c7-df488ee3ce45 | 104059/M | Codeforces Gym | germany-2022 |
| Mirror Magic mirrormagic 8ee7605a-dac0-8d89-3bcd-1372dbaaec92 | 106797/M | Codeforces Gym | germany-2026 |
| Mirrority Report | 104668/K | Codeforces Gym | cerc-2018 |
| Miscalculation | 100803/B | Codeforces Gym | japan-2014 |
| Mischievous Math mischievousmath cd9e9039-d20d-438f-a1d4-3e2c3656550d | 104466/M | Codeforces Gym | germany-2023 |
| Miser | 102896/M | Codeforces Gym | nerc-2020 |
| Mission Hexa | 106270/A | Codeforces Gym | dhaka-2025 |
| Mission Possible | 1252I | Codeforces Gym | jakarta-2019 |
| Mixing Solutions | 105633/J | Codeforces Gym | japan-2024 |
| Mobile | 100190/H | Codeforces Gym | ecna-2011 |
| Mobile Robot | 102920/G | Codeforces Gym | korea-2020 |
| Modifying SAT | 101908/M | Codeforces Gym | brazil-first-phase-2018 |
| Modulo Ruins the Legend | 104090/A | Codeforces Gym | hangzhou-2022 |
| Mole Tunnels | 101190/M | Codeforces Gym | neerc-2016 |
| Monarchy in Vertigo | 103388/M | Codeforces Gym | brazil-first-phase-2021 |
| Money Game | 104090/D | Codeforces Gym | hangzhou-2022 |
| Money Laundering | 104686/I | Codeforces Gym | cerc-2022 |
| Money Matters moneymatters c1d61419-7263-47c4-b034-c9eedd30d706 | 101557/B | Codeforces Gym | nordic-2009 |
| Money Money Money, Must Be Funny | 100810/F | Codeforces Gym | ctuo-2007 |
| Monster Hunter | 102992/M | Codeforces Gym | nanjing-2020 |
| Monty's Hall montyshall 58130622-07cb-4240-8bd6-7ebba3387e8c | 106167/M | Codeforces Gym | germany-2021 |
| Moon | 102471/I | Codeforces Gym | aec-2019 |
| More or Less Accurate | 100719/G | Codeforces Gym | ctuo-2014 |
| Morning Walk | 106270/F | Codeforces Gym | dhaka-2025 |
| Morse Code | 2068D | Codeforces Gym | euc-2025 |
| Mortgage | 104686/J | Codeforces Gym | cerc-2022 |
| Mosquito Multiplication mosquito adfd902b-2262-49cc-8bf2-050e9e2f65f1 | 100191/F, 100795/F | Codeforces Gym · Codeforces Gym | ctuo-2012 |
| Mosquito Multiplication mosquito adfd902b-2262-49cc-8bf2-050e9e2f65f1 | 100191/F, 100795/F | Codeforces Gym · Codeforces Gym | ctuo-2012 |
| Most | 100719/B | Codeforces Gym | ctuo-2014 |
| Most Distant Point from the Sea | 101415/I | Codeforces Gym | japan-2007 |
| Most Ordered Way | 103640/M | Codeforces Gym | brazil-2021 |
| Most Ordered Way | 103640/M | Codeforces Gym | caribbean-2021 |
| Most Ordered Way | 103640/M | Codeforces Gym | central-america-2021 |
| Most Ordered Way | 103640/M | Codeforces Gym | mexico-2021 |
| Motivation problems | 104452/A | Codeforces Gym | central-russia-2020 |
| Mountain | 103119/E | Codeforces Gym | macau-2020 |
| Mountain Ranges | 102428/M | Codeforces Gym | central-america-2019 |
| Mountain Ranges | 102428/M | Codeforces Gym | mexico-2019 |
| Mountaineers mountaineers 47de5e9e-cf20-4efd-acd5-10af993f64c7 | 102021/M | Codeforces Gym | germany-2018 |
| Mountainous Landscape mountainouslandscape 0f184691-fd0f-47a7-9916-7bb79b1149a8 | 100543/B | Codeforces Gym | cerc-2014 |
| Move One Coin | 104849/D | Codeforces Gym | japan-2022 |
| Movers | 104767/H | Codeforces Gym | ctuo-2023 |
| Moving Furniture | 101954/I | Codeforces Gym | ctuo-2018 |
| Mower | 104673/E | Codeforces Gym | ctuo-2022 |
| Multidimensional Hangman | 103960/F | Codeforces Gym | brazil-first-phase-2022 |
| Multidimensional Points | 102788/J | Codeforces Gym | central-russia-2017 |
| Multiplication Puzzle | 100114/E | Codeforces Gym | central-russia-2012 |
| Multiplying Digits multiplyingdigits 46fdfac6-ab77-4a3a-9d95-727852d1a2de | 101490/H | Codeforces Gym | bapc-2016 |
| Museum Visit museumvisit 8ee7605a-63ff-8ea7-0c25-f2337871d63b | 105492/M | Codeforces Gym | bapc-2024 |
| Music Festival | 101908/F | Codeforces Gym | brazil-first-phase-2018 |
| Musical Chairs musicalchairs | 104596/F | Codeforces Gym | ecna-2019 |
| Musical Mending musicalmending 76463973-1815-491b-8b5a-dc182105aa10 | 105394/M | Codeforces Gym | germany-2024 |
| Mysterious Resistors | 102780/B | Codeforces Gym | central-russia-2019 |
| Mysterious Tree | 104976/J | Codeforces Gym | hangzhou-2023 |
| Máquina de café | 101889/M | Codeforces Gym | brazil-2017 |
| NaN in a Heap | 104128/K | Codeforces Gym | nanjing-2022 |
| Natatorium | 104767/I | Codeforces Gym | ctuo-2023 |
| Natural Navigation navigation 6f72c19d-371f-45ef-97ec-807e22fddec5 | 106167/N | Codeforces Gym | germany-2021 |
| Needle | 104673/F | Codeforces Gym | ctuo-2022 |
| Needle | 102920/H | Codeforces Gym | korea-2020 |
| Nested Repetition Compression | 104832/D | Codeforces Gym | japan-2023 |
| Network Editing | 106679/E | Codeforces Gym | brazil-first-phase-2026 |
| Never Wait for Weights | 101412/F | Codeforces Gym | japan-2012 |
| New Flat | 102896/N | Codeforces Gym | nerc-2020 |
| New Year Festival | 104849/K | Codeforces Gym | japan-2022 |
| Nim Cheater | 103119/I | Codeforces Gym | macau-2020 |
| Nlogônia's Keys | 106679/N | Codeforces Gym | brazil-first-phase-2026 |
| No Bug No Game | 104090/C | Codeforces Gym | hangzhou-2022 |
| No Luck | 103388/N | Codeforces Gym | brazil-first-phase-2021 |
| No Smoking, Please | 101518/H | Codeforces Gym | bapc-2009 |
| Non-Integer Donuts | 103185/N | Codeforces Gym | brazil-2020 |
| Non-Integer Donuts | 103185/N | Codeforces Gym | central-america-2020 |
| Non-Integer Donuts | 103185/N | Codeforces Gym | mexico-2020 |
| Non-boring sequences nonboringsequences e0b2908e-220d-402f-b65b-79efcc8f6ecf | 100624/D | Codeforces Gym | cerc-2012 |
| Non-random numbers | 102785/G | Codeforces Gym | central-russia-2018 |
| Nonogram | 106270/G | Codeforces Gym | dhaka-2025 |
| Noonerized Spumbers noonerizedspumbers 5340d02e-f41b-42e9-a10f-f809ca0395e4 | 104196/G | Codeforces Gym | ecna-2021 |
| Normal Magic Square | 102788/A | Codeforces Gym | central-russia-2017 |
| Noughts and crosses | 102785/I | Codeforces Gym | central-russia-2018 |
| Number Multiplication | 102861/N | Codeforces Gym | brazil-first-phase-2020 |
| Number Trick trick 4abc0b76-9531-4dd5-bef5-fd6eb4092690 | 101554/C | Codeforces Gym | nordic-ukiepc-2013 |
| Numbers Generator | 101954/D | Codeforces Gym | ctuo-2018 |
| Numbers on both Sides | 103960/N | Codeforces Gym | brazil-first-phase-2022 |
| Numble numble 35658e0c-f16e-4938-890f-f306e82ca1bd | 104196/H | Codeforces Gym | ecna-2021 |
| Odd Opportunities | 100791/O | Codeforces Gym | ctuo-2009 |
| Offices | 104713/G | Codeforces Gym | cerc-2020 |
| Older Brother olderbrother 391ec40f-6813-4c07-850e-955613bc2d27 | 101490/I | Codeforces Gym | bapc-2016 |
| Omnes Viae Yokohamam Ducunt? | 105633/C | Codeforces Gym | japan-2024 |
| Once Around the Lock | 100647/E | Codeforces Gym | ecna-2007 |
| One-Dimensional Cellular Automaton | 101412/C | Codeforces Gym | japan-2012 |
| Onion | 2206L | Codeforces Gym | apc-2026 |
| Oops, It's Yesterday Twice More | 103470/A | Codeforces Gym | nanjing-2021 |
| Opening Ceremony ceremony 69a889b3-5835-43e7-b50b-cabc0e2eed61 | 100502/E | Codeforces Gym | nordic-ukiepc-2014 |
| Operator Precedence | 104976/D | Codeforces Gym | hangzhou-2023 |
| Optimal Balancing Strategy | 106270/H | Codeforces Gym | dhaka-2025 |
| Optimum Server Location | 102896/O | Codeforces Gym | nerc-2020 |
| Orchard Division | 101505/G | Codeforces Gym | ctuo-2016 |
| Oreperations Research oreperationsresearch ccc1a905-8dd2-433b-a525-8cd50b4db9a7 | 104587/D | Codeforces Gym | ecna-2020 |
| Organ-free Man organfreeman 3186d289-4ecc-4be7-9059-05b62e38d2f1 | 104783/O | Codeforces Gym | ctuo-2021 |
| Origami Through-Hole | 101414/E | Codeforces Gym | japan-2009 |
| Ornithology | 105442/H | Codeforces Gym | ctuo-2024 |
| Oscar is All You Need | 104090/E | Codeforces Gym | hangzhou-2022 |
| Out of Sorts outofsorts | 104596/G | Codeforces Gym | ecna-2019 |
| Outer Space Invaders spaceinvaders db889bd0-fd7a-4099-b050-14365d15c2a0 | 100543/L | Codeforces Gym | cerc-2014 |
| Outing outing fdf6c82f-deea-43bc-91a4-83374a000648 | 100502/G | Codeforces Gym | nordic-ukiepc-2014 |
| Over the Hill, Part 1 overthehill1 3a5b2a5c-b306-456f-a0b8-e588de5c1661 | 104587/E | Codeforces Gym | ecna-2020 |
| Over the Hill, Part 2 overthehill2 0af8a8fa-6b5e-4b61-bfa2-ce8d187fc68c | 104587/F | Codeforces Gym | ecna-2020 |
| Paddle Star | 104172/G | Codeforces Gym | hong-kong-2022 |
| Paimon Polygon | 103470/F | Codeforces Gym | nanjing-2021 |
| Paimon Segment Tree | 103470/E | Codeforces Gym | nanjing-2021 |
| Paimon Sorting | 103470/D | Codeforces Gym | nanjing-2021 |
| Paimon's Tree 79759ffa-f2ba-4f62-a368-a1487ffbbef0 | 103470/G | Codeforces Gym | nanjing-2021 |
| Painting | 104090/J | Codeforces Gym | hangzhou-2022 |
| Painting Grid | 104172/C | Codeforces Gym | hong-kong-2022 |
| Palindromic Parentheses | 1906L | Codeforces Gym | jakarta-2023 |
| Pants On Fire pantsonfire 867bf09f-33b5-4027-930e-929bc1896929 | 101873/D | Codeforces Gym | germany-2017 |
| Parabolic sorting | 102780/K | Codeforces Gym | central-russia-2019 |
| Parades parades 9d139de8-e2f1-4b18-bf3b-988f3e85956c | 100543/A | Codeforces Gym | cerc-2014 |
| Parallel Lines | 101986/B | Codeforces Gym | japan-2017 |
| Parallel Sums | 2206E | Codeforces Gym | apc-2026 |
| Parallelogram | 104782/J | Codeforces Gym | romania-2023 |
| Parentheses | 101987/F | Codeforces Gym | korea-2018 |
| Parity Game | 104891/G | Codeforces Gym | macau-2023 |
| Parking Ships | 101519/I | Codeforces Gym | bapc-2011 |
| Particle Swapping particles 45e89b51-66b8-4846-bcaf-0babd8e4307b | 100502/F | Codeforces Gym | nordic-ukiepc-2014 |
| Party Company | 102861/E | Codeforces Gym | brazil-first-phase-2020 |
| Party Party Party | 100646/D | Codeforces Gym | ecna-2008 |
| Pass the Ball! | 104373/E | Codeforces Gym | macau-2021 |
| Patches | 101473/I | Codeforces Gym | brazil-first-phase-2013 |
| Patio | 104673/G | Codeforces Gym | ctuo-2022 |
| Pea Pattern peapattern | 104614/G | Codeforces Gym | ecna-2022 |
| Pearls | 104757/J | Codeforces Gym | ecna-2023 |
| Pebbles | 102785/F | Codeforces Gym | central-russia-2018 |
| Peculiar Protocol | 105633/L | Codeforces Gym | japan-2024 |
| Peculiar primes primes c1a09136-9344-445c-91a4-2e94400af485 | 100791/P | Codeforces Gym | ctuo-2009 |
| Penguin Bashing | 101518/A | Codeforces Gym | bapc-2009 |
| Perfect Matching | 104128/J | Codeforces Gym | nanjing-2022 |
| Perfect Palindrome | 104128/I | Codeforces Gym | nanjing-2022 |
| Performance Review | 1252G | Codeforces Gym | jakarta-2019 |
| Period of a String | 104976/E | Codeforces Gym | hangzhou-2023 |
| Permutation | 102471/J | Codeforces Gym | aec-2019 |
| Permutation Compression | 104172/L | Codeforces Gym | hong-kong-2022 |
| Permutation on Tree | 104373/H | Codeforces Gym | macau-2021 |
| Permutations and sums | 104454/L | Codeforces Gym | central-russia-2021 |
| Perpetuum Mobile perpetuummobile 7ebdeb23-fe6e-4e11-a359-2b13c4269abb | 101873/E | Codeforces Gym | germany-2017 |
| Personality Test | 1938G | Codeforces Gym | apc-2024 |
| Pharaoh hEx | 104452/I | Codeforces Gym | central-russia-2020 |
| Philosopher’s Walk | 101667/F | Codeforces Gym | korea-2017 |
| Pho Restaurant | 1938H | Codeforces Gym | apc-2024 |
| Phone Lines | 106679/J | Codeforces Gym | brazil-first-phase-2026 |
| Photo Shoot | 100644/D | Codeforces Gym | ecna-2010 |
| Phylogenetics | 104871/F | Codeforces Gym | cerc-2023 |
| Picking Up Steam pickingupsteam | 104614/H | Codeforces Gym | ecna-2022 |
| Pickpockets | 104713/H | Codeforces Gym | cerc-2020 |
| Picture Validator | 100719/J | Codeforces Gym | ctuo-2014 |
| Pigpartite Giraffe | 105442/E | Codeforces Gym | ctuo-2024 |
| Pinball | 2068I | Codeforces Gym | euc-2025 |
| Pinball pinball a1872ecd-cae3-4b43-889e-76d350b6f1b1 | 101554/H | Codeforces Gym | nordic-ukiepc-2013 |
| Pinned Files pinnedfiles 442bc586-3841-42e3-8b26-87944da97ec6 | 104196/I | Codeforces Gym | ecna-2021 |
| Pisano period | 104454/C | Codeforces Gym | central-russia-2021 |
| Pizza Cutter | 101908/C | Codeforces Gym | brazil-first-phase-2018 |
| Pizza Delivery | 101986/F | Codeforces Gym | japan-2017 |
| Pizzo Collectors | 104713/C | Codeforces Gym | cerc-2020 |
| Placing Medals on a Binary Tree | 101158/G | Codeforces Gym | japan-2016 |
| Plankton Food plankton fa1b5fb5-31de-408a-83b0-b8a60356abfd | 100829/H | Codeforces Gym | ctuo-2015 |
| Planting Trees plantingtrees 4aeadb3d-14ef-40a2-97db-410aead72ae0 | 101554/A | Codeforces Gym | nordic-ukiepc-2013 |
| Plaque Pack | 100648/E | Codeforces Gym | ecna-2006 |
| Playfair Cipher playfair 9cfb95ec-c65e-4213-a2aa-c8104f3a9fcb | 101557/I | Codeforces Gym | nordic-2009 |
| Playing 23 | 103960/J | Codeforces Gym | brazil-first-phase-2022 |
| Please Save Pigeland | 104090/M | Codeforces Gym | hangzhou-2022 |
| Plug It In! plugitin bdf5790a-43d4-414a-9773-b8c490cb1938 | 101873/F | Codeforces Gym | germany-2017 |
| Polar Bear | 100644/E | Codeforces Gym | ecna-2010 |
| Police Hypothesis | 101908/H | Codeforces Gym | brazil-first-phase-2018 |
| Polyomino Powers polyomino bedc669c-0d64-48c0-a226-c4280a2cc2d2 | 101556/H | Codeforces Gym | nordic-2010 |
| Pond Cascade | 101670/B | Codeforces Gym | ctuo-2017 |
| Ponk Warshall | 104666/I | Codeforces Gym | cerc-2019 |
| Popping Balloons | 101519/A | Codeforces Gym | bapc-2011 |
| Popping Balloons | 102001/F | Codeforces Gym | jakarta-2018 |
| Pork Barrel porkbarrel 10e8a33d-4091-4507-8dac-3e1af4c62ffd | 100543/J | Codeforces Gym | cerc-2014 |
| Porto Vs. Benfica | 2068E | Codeforces Gym | euc-2025 |
| Power play | 102780/D | Codeforces Gym | central-russia-2019 |
| Pray Mink | 105442/G | Codeforces Gym | ctuo-2024 |
| Prime Gap | 101415/B | Codeforces Gym | japan-2007 |
| Prime Time primetime 0b8df784-602b-4060-b90a-2d804756b76d | 101555/I | Codeforces Gym | nordic-2011 |
| Printed circuit board | 102780/E | Codeforces Gym | central-russia-2019 |
| Private Space privatespace fbecb24c-128f-4974-805c-374bb58b909b | 101555/H | Codeforces Gym | nordic-2011 |
| Pro-Test Voting | 100644/F | Codeforces Gym | ecna-2010 |
| Probing the Disk | 104832/K | Codeforces Gym | japan-2023 |
| Problem 3n+1 | 104454/I | Codeforces Gym | central-russia-2021 |
| Prof.~Fumblemore and the Collatz Conjecture | 104757/E | Codeforces Gym | ecna-2023 |
| Professor R's. Median | 104452/D | Codeforces Gym | central-russia-2020 |
| Proglute | 104767/J | Codeforces Gym | ctuo-2023 |
| Programming Tutors programmingtutors 56928c08-5c49-48be-94f8-7a36a011b4c7 | 101490/J | Codeforces Gym | bapc-2016 |
| Progress bar | 104452/G | Codeforces Gym | central-russia-2020 |
| Prohibición de fumar | 100790/F | Codeforces Gym | ctuo-2010 |
| Proposition Composition | 104128/L | Codeforces Gym | nanjing-2022 |
| Punching Power | 101670/J | Codeforces Gym | ctuo-2017 |
| Puzzle generator | 104454/A | Codeforces Gym | central-russia-2021 |
| Puzzle in Inazuma | 103470/B | Codeforces Gym | nanjing-2021 |
| Pyramid Guards | 100790/G | Codeforces Gym | ctuo-2010 |
| P||k Cutting | 105442/I | Codeforces Gym | ctuo-2024 |
| Quality of Check Digits | 101158/B | Codeforces Gym | japan-2016 |
| Queens, Knights and Pawns | 100650/D | Codeforces Gym | ecna-2005 |
| Queue Sorting | 104857/B | Codeforces Gym | hefei-2023 |
| Quick Sort | 104076/G | Codeforces Gym | jinan-2022 |
| Quick out of the Harbour | 101519/B | Codeforces Gym | bapc-2011 |
| Quiz Contest | 104849/I | Codeforces Gym | japan-2022 |
| R u really ready? | 102785/J | Codeforces Gym | central-russia-2018 |
| RPG Pro League | 104090/H | Codeforces Gym | hangzhou-2022 |
| Rabid Rabbit | 105442/J | Codeforces Gym | ctuo-2024 |
| Racing Car Trail | 101481/G | Codeforces Gym | cerc-2011 |
| Radar | 104797/H | Codeforces Gym | cerc-2021 |
| Railway Transportation | 100810/G | Codeforces Gym | ctuo-2007 |
| Rain Fall rainfall2 8604bf9b-183b-4939-8d69-8c2e9d438a76 | 101557/D | Codeforces Gym | nordic-2009 |
| Rainbow Subarray | 104901/K | Codeforces Gym | jinan-2023 |
| Random Permutation | 103119/L | Codeforces Gym | macau-2020 |
| Random Tree Parking | 104891/H | Codeforces Gym | macau-2023 |
| Range Closest Pair of Points Query | 104172/I | Codeforces Gym | hong-kong-2022 |
| Rank Promotion | 104832/B | Codeforces Gym | japan-2023 |
| Ranks | 102082/I | Codeforces Gym | japan-2018 |
| Ratatöskr ratatoskr 75668352-3e7a-47d0-b6e2-0d29afd4ac5d | 101873/H | Codeforces Gym | germany-2017 |
| Rearranging a Sequence | 101158/A | Codeforces Gym | japan-2016 |
| Rectangles | 102788/B | Codeforces Gym | central-russia-2017 |
| Rectilinear Regions | 101667/G | Codeforces Gym | korea-2017 |
| Recycling recycling 50949b26-7c63-43d1-8da4-e9b20f20d83e | 104196/J | Codeforces Gym | ecna-2021 |
| Red Rover redrover | 101196/E | Codeforces Gym | ecna-2016 |
| Reflect Sort | 2206H | Codeforces Gym | apc-2026 |
| Refresher into Midas | 104891/I | Codeforces Gym | macau-2023 |
| Regional development | 104797/I | Codeforces Gym | cerc-2021 |
| Regular Forestation | 1252F | Codeforces Gym | jakarta-2019 |
| Reliable Nets | 100650/E | Codeforces Gym | ecna-2005 |
| Remainder Reminder remainderreminder | 104596/H | Codeforces Gym | ecna-2019 |
| Remodeling the Dungeon | 104849/G | Codeforces Gym | japan-2022 |
| Remodeling the Dungeon 2 | 105633/H | Codeforces Gym | japan-2024 |
| Removal Game removalgame | 101196/F | Codeforces Gym | ecna-2016 |
| Rendezvous on a Tetrahedron | 101986/G | Codeforces Gym | japan-2017 |
| Repeated Substitution with Sed | 101414/B | Codeforces Gym | japan-2009 |
| Repetitions | 104797/J | Codeforces Gym | cerc-2021 |
| Reptile Eggs | 105442/C | Codeforces Gym | ctuo-2024 |
| Rescue Mission | 104713/F | Codeforces Gym | cerc-2020 |
| Reservoir Dog | 104668/D | Codeforces Gym | cerc-2018 |
| Restroom Monitor restroommonitor 8f955c9b-9808-4fe3-bdb8-462c851c3d6a | 104587/H | Codeforces Gym | ecna-2020 |
| Retribution! retribution | 104596/A | Codeforces Gym | ecna-2019 |
| Rhinoceros Beetle rhino 39ee0c67-9b2a-4568-a40e-64a422647a6c | 100191/G, 100795/G | Codeforces Gym · Codeforces Gym | ctuo-2012 |
| Rhinoceros Beetle rhino 39ee0c67-9b2a-4568-a40e-64a422647a6c | 100191/G, 100795/G | Codeforces Gym · Codeforces Gym | ctuo-2012 |
| Ribbon on the Christmas Present | 105633/A | Codeforces Gym | japan-2024 |
| Road | 101516/D | Codeforces Gym | bapc-2008 |
| Road Construction | 1252L | Codeforces Gym | jakarta-2019 |
| Road To Savings roadtosavings | 104614/I | Codeforces Gym | ecna-2022 |
| Road Work roadwork fdf0cc39-405a-443b-8884-5486165e4ed1 | 100502/J | Codeforces Gym | nordic-ukiepc-2014 |
| Robert Hood roberthood 1d807abe-10a1-4108-867a-54fc75ce11f0 | 101554/D | Codeforces Gym | nordic-ukiepc-2013 |
| Robintron | 101516/G | Codeforces Gym | bapc-2008 |
| Robotic Rails | 100791/R | Codeforces Gym | ctuo-2009 |
| Robots | 104673/H | Codeforces Gym | ctuo-2022 |
| Robots on a Grid robotsonagrid 5a4fc5f2-b357-4078-b8ce-bd459f643fab | 101555/A | Codeforces Gym | nordic-2011 |
| Rock Paper Scissors | 101667/H | Codeforces Gym | korea-2017 |
| Roll Playing Games | 100651/E | Codeforces Gym | ecna-2004 |
| Roman Expressions | 100810/C | Codeforces Gym | ctuo-2007 |
| Roman Palindromes | 104848/H | Codeforces Gym | moscow-2021 |
| Roof Escape | 104713/J | Codeforces Gym | cerc-2020 |
| Roofing It | 100648/F | Codeforces Gym | ecna-2006 |
| Ropeway | 104128/B | Codeforces Gym | nanjing-2022 |
| Rotating Display | 101505/D | Codeforces Gym | ctuo-2016 |
| Rotating Gears | 102001/B | Codeforces Gym | jakarta-2018 |
| Round Trip | 102004/J | Codeforces Gym | japan-2011 |
| Rubik's Rectangle rubikrectangle 8c3cefbb-4b53-4c6f-b424-3cf30e310654 | 100299/A | Codeforces Gym | cerc-2013 |
| Rullete | 101954/C | Codeforces Gym | ctuo-2018 |
| SBC's Hangar | 102861/H | Codeforces Gym | brazil-first-phase-2020 |
| SQRT Problem | 104857/A | Codeforces Gym | hefei-2023 |
| Saba1000kg | 104666/J | Codeforces Gym | cerc-2019 |
| Safe Racing saferacing 9c0dd881-a857-4cae-951c-1688748798b6 | 101490/K | Codeforces Gym | bapc-2016 |
| Sandpile on Clique | 104373/F | Codeforces Gym | macau-2021 |
| Save the Wonderland | 106270/D | Codeforces Gym | dhaka-2025 |
| Say Hello to the Future | 104901/F | Codeforces Gym | jinan-2023 |
| Scheduling Two Meetings | 105633/K | Codeforces Gym | japan-2024 |
| Scholar's Lawn scholarslawn 7d78684b-a358-4e4c-b083-84547916b3ad | 104587/I | Codeforces Gym | ecna-2020 |
| Scooter | 1949G | Codeforces Gym | euc-2024 |
| Screamers | 104713/K | Codeforces Gym | cerc-2020 |
| Screamers in the Storm | 104666/K | Codeforces Gym | cerc-2019 |
| Screamers in the Storm | 104784/S1 | Codeforces Gym | ctuo-2019 |
| Screamers in the Storm screamersinthestorm 4534b3a9-fc19-4576-a5c6-f863aab61926 | 104783/S | Codeforces Gym | ctuo-2021 |
| Screamers in the Storm | 104767/K | Codeforces Gym | ctuo-2023 |
| Sea Battle | 104454/O | Codeforces Gym | central-russia-2021 |
| Seagull Population | 106268/C | Codeforces Gym | japan-2025 |
| Secret Code | 101987/G | Codeforces Gym | korea-2018 |
| Secret Lilies and Roses | 2073H | Codeforces Gym | apc-2025 |
| Secret of Chocolate Poles | 101986/A | Codeforces Gym | japan-2017 |
| Secret of Tianqiu Valley | 103470/L | Codeforces Gym | nanjing-2021 |
| Secure the Top Secret | 104849/C | Codeforces Gym | japan-2022 |
| Security Guards | 101954/B | Codeforces Gym | ctuo-2018 |
| Selection | 100114/D | Codeforces Gym | central-russia-2012 |
| Self-Intersecting Path | 100719/H | Codeforces Gym | ctuo-2014 |
| Separate Points | 101414/D | Codeforces Gym | japan-2009 |
| Sequence | 100114/C | Codeforces Gym | central-russia-2012 |
| Sequences | 106679/B | Codeforces Gym | brazil-first-phase-2026 |
| Set of Intervals | 104076/H | Codeforces Gym | jinan-2022 |
| Shamans | 104673/I | Codeforces Gym | ctuo-2022 |
| Shooter Island | 104668/G | Codeforces Gym | cerc-2018 |
| Shooting | 104454/B | Codeforces Gym | central-russia-2021 |
| Shooting Gallery | 101670/F | Codeforces Gym | ctuo-2017 |
| Shopping | 100803/C | Codeforces Gym | japan-2014 |
| Shortest Common Non-Subsequence | 102082/D | Codeforces Gym | japan-2018 |
| Shortest Path | 104076/I | Codeforces Gym | jinan-2022 |
| Shortest Path Fast Algorithm | 104373/D | Codeforces Gym | macau-2021 |
| Shortest Path Query | 104172/D | Codeforces Gym | hong-kong-2022 |
| Silver Star Stands Alone silverstarstandsalone 090a1685-ac7b-402a-a523-4a8bc733975a | 104783/A | Codeforces Gym | ctuo-2021 |
| Simon the Spider spider 043c41c7-eb34-4628-8402-fcf9f972338e | 100191/H, 100795/H | Codeforces Gym · Codeforces Gym | ctuo-2012 |
| Simon the Spider spider 043c41c7-eb34-4628-8402-fcf9f972338e | 100191/H, 100795/H | Codeforces Gym · Codeforces Gym | ctuo-2012 |
| Simple Polygon | 101987/H | Codeforces Gym | korea-2018 |
| Simple Solitaire simplesolitaire | 104614/J | Codeforces Gym | ecna-2022 |
| Simply Sudoku simplysudoku 9472a8db-9155-4116-ae6c-65da35df51b1 | 104587/J | Codeforces Gym | ecna-2020 |
| Single-track railway | 104797/K | Codeforces Gym | cerc-2021 |
| Sixpack | 104784/S2 | Codeforces Gym | ctuo-2019 |
| Sixth Sense | 102082/K | Codeforces Gym | japan-2018 |
| Skills | 104076/J | Codeforces Gym | jinan-2022 |
| Skills in Pills | 104686/K | Codeforces Gym | cerc-2022 |
| Skinny Polygon | 101158/I | Codeforces Gym | japan-2016 |
| Skyline skyline ebf7e5b0-015c-4838-b225-5d4d317a9c7b | 101556/J | Codeforces Gym | nordic-2010 |
| Slackline Adventure | 101908/A | Codeforces Gym | brazil-first-phase-2018 |
| Sliding Block Puzzle | 101412/E | Codeforces Gym | japan-2012 |
| Slim Span | 101415/F | Codeforces Gym | japan-2007 |
| Slot Machines | 101667/I | Codeforces Gym | korea-2017 |
| Smart Thief | 102001/C | Codeforces Gym | jakarta-2018 |
| Snake Move | 104976/G | Codeforces Gym | hangzhou-2023 |
| Snakes on a Plane | 100648/G | Codeforces Gym | ecna-2006 |
| So I'll Max Out My Constructive Algorithm Skills | 104373/A | Codeforces Gym | macau-2021 |
| Soccer Tournament | 100810/H | Codeforces Gym | ctuo-2007 |
| Socks Drying | 104848/C | Codeforces Gym | moscow-2021 |
| Soda Slurper sodaslurper be8b96ea-56f2-4781-8a37-2d347fcf115a | 101557/A | Codeforces Gym | nordic-2009 |
| Software Bugs bugs 5aa8b72f-6795-498c-97a3-c59fad443791 | 100191/B, 100795/B | Codeforces Gym · Codeforces Gym | ctuo-2012 |
| Software Bugs bugs 5aa8b72f-6795-498c-97a3-c59fad443791 | 100191/B, 100795/B | Codeforces Gym · Codeforces Gym | ctuo-2012 |
| Something that resembles Waring's problem | 102780/J | Codeforces Gym | central-russia-2019 |
| Song contest | 101516/A | Codeforces Gym | bapc-2008 |
| Songwriter | 1252E | Codeforces Gym | jakarta-2019 |
| Souvenirs souvenirs 8ee7605a-17ec-8496-3091-213c766d33df | 100753/J | Codeforces Gym | germany-2015 |
| Space Golf | 100803/D | Codeforces Gym | japan-2014 |
| Spaceship Exploration | 1906D | Codeforces Gym | jakarta-2023 |
| Spectacular Ending | 104848/J | Codeforces Gym | moscow-2021 |
| Speedy Escape speedyescape 99b4b8d7-6f27-4544-ad5e-e369341a294b | 101557/E | Codeforces Gym | nordic-2009 |
| Split Decisions | 104757/K | Codeforces Gym | ecna-2023 |
| Split Game | 101954/H | Codeforces Gym | ctuo-2018 |
| Spying Game | 102788/F | Codeforces Gym | central-russia-2017 |
| Square Count | 100650/F | Codeforces Gym | ecna-2005 |
| Square Rooms squarerooms | 104596/I | Codeforces Gym | ecna-2019 |
| Square Root | 101987/I | Codeforces Gym | korea-2018 |
| Square transit | 104452/F | Codeforces Gym | central-russia-2020 |
| Squares on Grid Lines | 2073I | Codeforces Gym | apc-2025 |
| Stable Table stabletable 8d684290-b368-4731-a584-2b56bd600454 | 104196/K | Codeforces Gym | ecna-2021 |
| Stack Machine Executor | 101481/C | Codeforces Gym | cerc-2011 |
| Stack Machine Programmer | 101481/E | Codeforces Gym | cerc-2011 |
| Stack Sort | 104076/K | Codeforces Gym | jinan-2022 |
| Stake Your Claim | 100648/H | Codeforces Gym | ecna-2006 |
| Starting a Scenic Railroad Service | 101986/I | Codeforces Gym | japan-2017 |
| Starwars | 101987/J | Codeforces Gym | korea-2018 |
| Statisticians statisticians f45f3d57-30a2-4d1e-a113-4194ca3d6b85 | 101556/I | Codeforces Gym | nordic-2010 |
| Statues statues 549bfb93-0e58-415d-a6d2-cb0cef70c8e3 | 104196/L | Codeforces Gym | ecna-2021 |
| Statues | 2068H | Codeforces Gym | euc-2025 |
| Stavitel | 100719/C | Codeforces Gym | ctuo-2014 |
| Sticker Album | 102861/A | Codeforces Gym | brazil-first-phase-2020 |
| Sticky Situation stickysituation c76b7796-0a25-4fc4-820f-933556df9405 | 101490/L | Codeforces Gym | bapc-2016 |
| Stock Analysis | 102920/I | Codeforces Gym | korea-2020 |
| Stop, Yesterday Please No More | 104128/A | Codeforces Gym | nanjing-2022 |
| Storage Problems | 104713/I | Codeforces Gym | cerc-2020 |
| Strange Regulations | 101481/F | Codeforces Gym | cerc-2011 |
| Strange Sorting | 104901/I | Codeforces Gym | jinan-2023 |
| Streak Manipulation | 104857/G | Codeforces Gym | hefei-2023 |
| String Puzzle | 101986/J | Codeforces Gym | japan-2017 |
| Strongly Matchable | 101667/J | Codeforces Gym | korea-2017 |
| Stylish | 101412/B | Codeforces Gym | japan-2012 |
| Su-Su-Sudoku | 100646/E | Codeforces Gym | ecna-2008 |
| Subgraph Isomorphism | 104090/G | Codeforces Gym | hangzhou-2022 |
| Submissions | 104976/A | Codeforces Gym | hangzhou-2023 |
| Subtree Removal Game | 2206B | Codeforces Gym | apc-2026 |
| Subway subway3 5cc485e9-4891-40a2-abe0-97a4e789b474 | 100299/D | Codeforces Gym | cerc-2013 |
| Subway Lines | 101908/L | Codeforces Gym | brazil-first-phase-2018 |
| Succession succession 1c248f34-0c1c-4cb3-8a58-a8727a054930 | 101556/A | Codeforces Gym | nordic-2010 |
| Suceava | 104782/F | Codeforces Gym | romania-2023 |
| Sugar Sweet II | 104976/H | Codeforces Gym | hangzhou-2023 |
| Sum of Numbers | 104172/F | Codeforces Gym | hong-kong-2022 |
| Sums consecutivesums 1b22a18e-cf68-43d9-97ad-5bc52b94a90c | 100543/C | Codeforces Gym | cerc-2014 |
| Suspicious Samples | 101505/I | Codeforces Gym | ctuo-2016 |
| Suspicious Stocks | 100791/S | Codeforces Gym | ctuo-2009 |
| Swamp Things | 100650/G | Codeforces Gym | ecna-2005 |
| Sweet War | 100803/I | Codeforces Gym | japan-2014 |
| Swimming Jam | 101414/C | Codeforces Gym | japan-2009 |
| Switches | 101908/I | Codeforces Gym | brazil-first-phase-2018 |
| Switches | 102920/J | Codeforces Gym | korea-2020 |
| Symmetric Boundary | 1938I | Codeforces Gym | apc-2024 |
| Systematic salesman | 104797/L | Codeforces Gym | cerc-2021 |
| TV Show Game | 101987/K | Codeforces Gym | korea-2018 |
| Takeout Delivering | 104857/J | Codeforces Gym | hefei-2023 |
| Tanks a Lot | 100646/F | Codeforces Gym | ecna-2008 |
| Target Practice | 100647/H | Codeforces Gym | ecna-2007 |
| Task Assignment to Two Employees | 104832/H | Codeforces Gym | japan-2023 |
| Tatami Renovation | 106268/A | Codeforces Gym | japan-2025 |
| Taxed Editor taxededitor | 104596/J | Codeforces Gym | ecna-2019 |
| Team Rankings | 100651/F | Codeforces Gym | ecna-2004 |
| Teleportation | 104891/J | Codeforces Gym | macau-2023 |
| Terrace Hill terracehill ee4a8365-28fe-4878-b021-25c33c59c97c | 104783/H | Codeforces Gym | ctuo-2021 |
| Test Case Tweaking | 101413/G | Codeforces Gym | japan-2010 |
| That’s One Hanoi-ed Teacher thathanoi | 101196/G | Codeforces Gym | ecna-2016 |
| The ABCD Murderer | 104668/A | Codeforces Gym | cerc-2018 |
| The Agency | 100190/A | Codeforces Gym | ecna-2011 |
| The Banzhaf Buzz-Of | 100190/E | Codeforces Gym | ecna-2011 |
| The Bridge on the River Kawaii | 104668/B | Codeforces Gym | cerc-2018 |
| The Bugs | 104666/L | Codeforces Gym | cerc-2019 |
| The Dragon and the Knights thedragonandtheknights 2381ddc8-3df6-4755-a9c2-de72511e5c12 | 100624/I | Codeforces Gym | cerc-2012 |
| The Easiest Problem Is This One easiest 85df4a8a-cab0-433c-96cf-19a3051234bc | 100790/E | Codeforces Gym | ctuo-2010 |
| The Farthest Point | 105633/F | Codeforces Gym | japan-2024 |
| The Final Level | 101630/F | Codeforces Gym | nerc-2017 |
| The Flood | 100645/E | Codeforces Gym | ecna-2009 |
| The Fox and the Owl foxandowl 8e7f869e-2ea1-4525-b216-0837521cfe9e | 100829/C | Codeforces Gym | ctuo-2015 |
| The Game | 104686/L | Codeforces Gym | cerc-2022 |
| The Game of Efil | 100650/C | Codeforces Gym | ecna-2005 |
| The Great Wall | 101630/G | Codeforces Gym | nerc-2017 |
| The Grille | 101481/D | Codeforces Gym | cerc-2011 |
| The Highlanders' Tournament | 104452/E | Codeforces Gym | central-russia-2020 |
| The Imp theimp bf0d5398-2903-4207-8672-4279a8a42663 | 100543/K | Codeforces Gym | cerc-2014 |
| The Key to Cryptography keytocrypto | 101196/C | Codeforces Gym | ecna-2016 |
| The Last Ant | 102014/B | Codeforces Gym | japan-2013 |
| The Lord of the Kings | 104668/H | Codeforces Gym | cerc-2018 |
| The Mastermind Master’s Mind | 100648/D | Codeforces Gym | ecna-2006 |
| The Morning after Halloween | 101415/G | Codeforces Gym | japan-2007 |
| The Owl and the Fox owlandfox 76f2c5d0-b1e0-43d3-8f8c-65da0b47053f | 100829/G | Codeforces Gym | ctuo-2015 |
| The Pharaoh’s Curse | 101518/E | Codeforces Gym | bapc-2009 |
| The Silence of the Lamps | 104668/I | Codeforces Gym | cerc-2018 |
| The Sorcerer’s Donut | 102004/B | Codeforces Gym | japan-2011 |
| The Sparsest Number in Between | 105633/B | Codeforces Gym | japan-2024 |
| The Teacher's Side of Math | 101415/J | Codeforces Gym | japan-2007 |
| The Two Men of the Japanese Alps | 101413/E | Codeforces Gym | japan-2010 |
| The Ultimate Wine Tasting Event | 2068J | Codeforces Gym | euc-2025 |
| The Worm Turns | 100646/G | Codeforces Gym | ecna-2008 |
| The floor is lava! | 104782/B | Codeforces Gym | romania-2023 |
| The skatepark's new ramps | 101516/C | Codeforces Gym | bapc-2008 |
| There and Back Again | 1938J | Codeforces Gym | apc-2024 |
| There is No Alternative | 100803/F | Codeforces Gym | japan-2014 |
| Three Kingdoms of Bourdelot | 101158/F | Codeforces Gym | japan-2016 |
| Three cushion carom | 104454/M | Codeforces Gym | central-russia-2021 |
| Three-Dimensional Embedding | 2073B | Codeforces Gym | apc-2025 |
| Ticket to Ride | 104901/L | Codeforces Gym | jinan-2023 |
| Tiling Polyomino | 102920/K | Codeforces Gym | korea-2020 |
| Tiling Terrace | 1252J | Codeforces Gym | jakarta-2019 |
| Time Display Stickers | 2206K | Codeforces Gym | apc-2026 |
| Time to reap the harvest | 104452/B | Codeforces Gym | central-russia-2020 |
| Timebomb timebomb eb2669b0-a740-43d5-b181-cc94a31a9ba5 | 101554/F | Codeforces Gym | nordic-ukiepc-2013 |
| To and Fro | 100651/G | Codeforces Gym | ecna-2004 |
| To-do list | 104454/K | Codeforces Gym | central-russia-2021 |
| Tobacco Growing | 104713/E | Codeforces Gym | cerc-2020 |
| TomTom Cruise tomtomcruise f1c44bf0-5b2c-49d2-b5f8-2d174a2506f1 | 104783/C | Codeforces Gym | ctuo-2021 |
| Tomb Hater tombhater 558fe49f-87fc-469a-9c7b-770180571701 | 104196/M | Codeforces Gym | ecna-2021 |
| Tone Banks tonebanks b1e43820-59cc-4ef5-bb18-24bf507df2ec | 104783/T | Codeforces Gym | ctuo-2021 |
| Top Cluster | 104976/F | Codeforces Gym | hangzhou-2023 |
| Torch | 104076/B | Codeforces Gym | jinan-2022 |
| Tower | 104076/A | Codeforces Gym | jinan-2022 |
| Tower of Hanoi | 2073D | Codeforces Gym | apc-2025 |
| Tower of Hanoi | 102788/K | Codeforces Gym | central-russia-2017 |
| Towns along a Highway | 101413/C | Codeforces Gym | japan-2010 |
| Traffic Lights | 106679/H | Codeforces Gym | brazil-first-phase-2026 |
| Train Passengers trainpassengers 96134e19-a883-4e39-9420-d27aeafe16ae | 100502/K | Codeforces Gym | nordic-ukiepc-2014 |
| Translations | 100651/H | Codeforces Gym | ecna-2004 |
| Transmitter | 104673/J | Codeforces Gym | ctuo-2022 |
| Travel | 102471/L | Codeforces Gym | aec-2019 |
| Traveling Salesperson in an Island | 104849/J | Codeforces Gym | japan-2022 |
| Treasure Map | 101519/J | Codeforces Gym | bapc-2011 |
| Tree Distance | 104076/L | Codeforces Gym | jinan-2022 |
| Tree Generators | 105633/D | Codeforces Gym | japan-2024 |
| Tree Quiz | 1938K | Codeforces Gym | apc-2024 |
| Tree Stands | 101505/F | Codeforces Gym | ctuo-2016 |
| TreeScript | 104172/A | Codeforces Gym | hong-kong-2022 |
| Trees Gump | 104668/E | Codeforces Gym | cerc-2018 |
| Treeshop | 104848/O | Codeforces Gym | moscow-2021 |
| Treetop Walkway | 101670/K | Codeforces Gym | ctuo-2017 |
| Triangle Construction | 1906M | Codeforces Gym | jakarta-2023 |
| Triangles | 101473/F | Codeforces Gym | brazil-first-phase-2013 |
| Triangles | 100114/K | Codeforces Gym | central-russia-2012 |
| Triangles | 104128/F | Codeforces Gym | nanjing-2022 |
| Trip the Lights Fantastic | 100645/G | Codeforces Gym | ecna-2009 |
| Trucks | 101473/J | Codeforces Gym | brazil-first-phase-2013 |
| Turn on the Light 2 | 104901/C | Codeforces Gym | jinan-2023 |
| Twenty Questions | 101414/H | Codeforces Gym | japan-2009 |
| Twin Buildings | 1252H | Codeforces Gym | jakarta-2019 |
| Twin Friends | 1906H | Codeforces Gym | jakarta-2023 |
| Two Buildings | 102920/L | Codeforces Gym | korea-2020 |
| Two Charts Become One twochartsbecomeone | 104614/K | Codeforces Gym | ecna-2022 |
| Two Ends | 100650/H | Codeforces Gym | ecna-2005 |
| Two Strings Attached | 106270/I | Codeforces Gym | dhaka-2025 |
| U-Shaped Panels | 106268/H | Codeforces Gym | japan-2025 |
| Ultimate Finishing Strike | 101519/F | Codeforces Gym | bapc-2011 |
| Unchanged Picture | 101481/H | Codeforces Gym | cerc-2011 |
| Undercover Pirate | 101519/E | Codeforces Gym | bapc-2011 |
| Understand | 104891/K | Codeforces Gym | macau-2023 |
| Unique Encryption Keys | 101481/I | Codeforces Gym | cerc-2011 |
| Unraveling Monty Hall | 101908/D | Codeforces Gym | brazil-first-phase-2018 |
| Untangling Chain | 101667/K | Codeforces Gym | korea-2017 |
| Upside Down Dijkstra | 2206C | Codeforces Gym | apc-2026 |
| Upside down primes upsidedownprimes 8ee7605a-5ea1-8479-18ce-a64c53b7aa8b | 100753/K | Codeforces Gym | germany-2015 |
| Urban Planning | 2068B | Codeforces Gym | euc-2025 |
| Useful Algorithm | 104090/B | Codeforces Gym | hangzhou-2022 |
| V-Diagram | 104976/M | Codeforces Gym | hangzhou-2023 |
| Vacation Plans | 101667/L | Codeforces Gym | korea-2017 |
| Vampires! | 100644/G | Codeforces Gym | ecna-2010 |
| Venusian Shuttle | 102861/O | Codeforces Gym | brazil-first-phase-2020 |
| Vigenère Cipher Analysis | 101481/A | Codeforces Gym | cerc-2011 |
| Vigenère Cipher Encryption | 101481/J | Codeforces Gym | cerc-2011 |
| Vin Diagrams vindiagrams | 101196/H | Codeforces Gym | ecna-2016 |
| Virus Replication virus 18751ba0-0c90-4781-a14d-6a6933260498 | 101554/E | Codeforces Gym | nordic-ukiepc-2013 |
| Virus Synthesis virussynthesis 278833e0-83c2-4f18-8584-d9ba46eb94a3 | 100543/G | Codeforces Gym | cerc-2014 |
| Visitors Train visitorstrain 3d91bdc2-a679-4a12-a373-4b7fde77677a | 100829/J | Codeforces Gym | ctuo-2015 |
| Vocabulary vocabulary 9076694a-5684-481e-bf50-bee62ba9fcd4 | 100543/F | Codeforces Gym | cerc-2014 |
| Volcanoes | 104673/K | Codeforces Gym | ctuo-2022 |
| Wagon | 104673/L | Codeforces Gym | ctuo-2022 |
| Waif Until Dark waif | 101196/I | Codeforces Gym | ecna-2016 |
| Walking the Plank | 101519/H | Codeforces Gym | bapc-2011 |
| Wall | 104767/L | Codeforces Gym | ctuo-2023 |
| Wally World | 100190/I | Codeforces Gym | ecna-2011 |
| Warfare | 101516/E | Codeforces Gym | bapc-2008 |
| Watchdogs | 105442/L | Codeforces Gym | ctuo-2024 |
| Water Testing poly ca627ca5-3700-466c-aa11-c5ff096b4a85 | 101873/G | Codeforces Gym | germany-2017 |
| We were trying to share an orange ... | 102785/D | Codeforces Gym | central-russia-2018 |
| Weaker than Planned | 102004/C | Codeforces Gym | japan-2011 |
| Weighty Tomes weightytomes 4c4d2a57-240a-4c75-8870-0cb8053246a1 | 104587/K | Codeforces Gym | ecna-2020 |
| We’ve Got Chemistry, Babe | 100644/H | Codeforces Gym | ecna-2010 |
| What Goes Up Must Come Down | 102082/G | Codeforces Gym | japan-2018 |
| What does the fox say? whatdoesthefoxsay 7c247232-b155-4ef2-b746-4022c4750cf1 | 100299/B | Codeforces Gym | cerc-2013 |
| Wheels wheels 3e6c2603-6f8b-4ea4-89f8-27482cf52cb8 | 100543/D | Codeforces Gym | cerc-2014 |
| Where Have You Bin? wherehaveyoubin | 104596/K | Codeforces Gym | ecna-2019 |
| Where’s Wally | 101413/H | Codeforces Gym | japan-2010 |
| Which Warehouse? whichwarehouse | 104614/L | Codeforces Gym | ecna-2022 |
| Who Wants to Live Forever? whowantstoliveforever a8d61009-629f-4222-b9e4-d49a65a300cd | 100624/B | Codeforces Gym | cerc-2012 |
| Win Diesel windiesel 1be290ea-60fa-447f-99a7-cb85edcfa562 | 104783/W | Codeforces Gym | ctuo-2021 |
| Windblume Festival | 103470/M | Codeforces Gym | nanjing-2021 |
| Windows | 100645/H | Codeforces Gym | ecna-2009 |
| Word Clock wordclock aae4b29d-ac26-4a06-9a90-d3301e121f35 | 101873/J | Codeforces Gym | germany-2017 |
| Word Equations wordequations 9b41a4d7-caa7-42ec-b7fc-41a443c56edd | 100624/E | Codeforces Gym | cerc-2012 |
| Workers of the World Unite! Just Not Too Close. workers f4552a39-43d2-4c5c-8990-f32025447db2 | 104587/L | Codeforces Gym | ecna-2020 |
| Working Plan | 101987/L | Codeforces Gym | korea-2018 |
| Worldwide Playlist | 2206J | Codeforces Gym | apc-2026 |
| XOR Operations | 1938L | Codeforces Gym | apc-2024 |
| Xingqiu's Joke | 103470/J | Codeforces Gym | nanjing-2021 |
| Yes, Yes, It’s Nonograms yesyes | 101196/J | Codeforces Gym | ecna-2016 |
| Yet Another Shortest Path Query | 104976/C | Codeforces Gym | hangzhou-2023 |
| Yokohama Phenomena | 104832/A | Codeforces Gym | japan-2023 |
| You Are Fired! youarefired 5cea8020-931e-42e2-b4d5-49cb14830ee3 | 101873/K | Codeforces Gym | germany-2017 |
| You’ll be Working on the Railroad | 100646/H | Codeforces Gym | ecna-2008 |
| Zeldain Garden | 104666/F | Codeforces Gym | cerc-2019 |
| Zero or One | 101473/A | Codeforces Gym | brazil-first-phase-2013 |
| Zig-zag | 1938M | Codeforces Gym | apc-2024 |
| apt upgrade aptupgrade 8ee7605a-03b9-81ba-29ff-5ace1616746b | 104790/A | Codeforces Gym | bapc-2023 |
| iCar icar 1342bd37-6ec2-4dc4-9869-b4f337f907b7 | 100781/I | Codeforces Gym | nordic-2015 |
| king | 102471/H | Codeforces Gym | aec-2019 |
| km/h kmh 8ee7605a-15ae-88ad-152c-49036812d082 | 106124/K | Codeforces Gym | nordic-2025 |
| ls ls ca76a05d-eecd-4929-aa02-447066ec3d14 | 101555/E | Codeforces Gym | nordic-2011 |
| the Matching System | 104373/B | Codeforces Gym | macau-2021 |
| value | 102471/M | Codeforces Gym | aec-2019 |
| Ácido Ribonucléico Alienígena | 100540/A | Codeforces Gym | brazil-2011 |
| Überwatch uberwatch e7813cec-7b5e-457e-a554-32bcc93ad272 | 101873/I | Codeforces Gym | germany-2017 |
| “Aaawww...” or “Aaayyy!!!” aaawwworaaayyy 8ee7605a-dcd2-8136-3f03-3e9fd43b2cb4 | 105492/A | Codeforces Gym | bapc-2024 |