| # | problem | internal id | held | solve online | notes |
| A | City | p-913f64a0 | — | NowCoder 牛客竞赛 (Niúkè, 'cow guest') · Luogu 洛谷 (Luògǔ) · Codeforces Gym | |
| B | Black and White | p-2a0c2568 | — | NowCoder 牛客竞赛 (Niúkè, 'cow guest') · Luogu 洛谷 (Luògǔ) · Codeforces Gym | |
| C | Dirichlet k -th root | p-692722b9 | — | NowCoder 牛客竞赛 (Niúkè, 'cow guest') · Luogu 洛谷 (Luògǔ) · Codeforces Gym | |
| D | Fire | p-fe7ed922 | — | NowCoder 牛客竞赛 (Niúkè, 'cow guest') · Luogu 洛谷 (Luògǔ) · Codeforces Gym | |
| E | Flow | p-373b0f18 | — | NowCoder 牛客竞赛 (Niúkè, 'cow guest') · Luogu 洛谷 (Luògǔ) · Codeforces Gym | |
| F | Game | p-64c66f1d | — | NowCoder 牛客竞赛 (Niúkè, 'cow guest') · Luogu 洛谷 (Luògǔ) · Codeforces Gym | |
| G | Happiness | p-e2a83a9f | — | NowCoder 牛客竞赛 (Niúkè, 'cow guest') · Luogu 洛谷 (Luògǔ) · Codeforces Gym | |
| H | king | p-a69db4e7 | — | NowCoder 牛客竞赛 (Niúkè, 'cow guest') · Luogu 洛谷 (Luògǔ) · Codeforces Gym | |
| I | Moon | p-a36c5fba | — | NowCoder 牛客竞赛 (Niúkè, 'cow guest') · Luogu 洛谷 (Luògǔ) · Codeforces Gym | |
| J | Permutation | p-f207d625 | — | NowCoder 牛客竞赛 (Niúkè, 'cow guest') · Luogu 洛谷 (Luògǔ) · Codeforces Gym | |
| K | All Pair Maximum Flow | p-c9386c01 | — | NowCoder 牛客竞赛 (Niúkè, 'cow guest') · Luogu 洛谷 (Luògǔ) · Codeforces Gym | |
| L | Travel | p-469af7e7 | — | NowCoder 牛客竞赛 (Niúkè, 'cow guest') · Luogu 洛谷 (Luògǔ) · Codeforces Gym | |
| M | value | p-382c4cdc | — | NowCoder 牛客竞赛 (Niúkè, 'cow guest') · Luogu 洛谷 (Luògǔ) · Codeforces Gym | |