ecna-2009
problem set — all sets · holdings by contest
- set id
- ecna-2009
- used by
- ecna-2009
- problems
- 8
- held
- statements: none test data: none solutions: none complete packages: none StDSoP
- provenance
- ICPC Problem Archive progress sheet (2026-11-01); online-judge pages (2026-11-02, tools/mine_judge_links.py)
- data
- problemsets/ecna-2009.yaml
Problems (8)
| # | problem | internal id | held | solve online | notes |
|---|---|---|---|---|---|
| A | Arithmetically Challenged | p-9c5d7be7 | — | Codeforces Gym · Baekjoon Online Judge (wayback) closed 2026-04-28 | |
| B | Cover Up | p-afcba11a | — | Baekjoon Online Judge (wayback) closed 2026-04-28 · Codeforces Gym | |
| C | Decompressing in a GIF | p-f70d1bb0 | — | Baekjoon Online Judge (wayback) closed 2026-04-28 · Codeforces Gym | |
| D | Flipper | p-a8a789d8 | — | Baekjoon Online Judge (wayback) closed 2026-04-28 · Codeforces Gym | |
| E | The Flood | p-aa53208c | — | Baekjoon Online Judge (wayback) closed 2026-04-28 · Codeforces Gym | |
| F | Here’s a Product Which Will Make You Tensor | p-64765155 | — | Codeforces Gym · Baekjoon Online Judge (wayback) closed 2026-04-28 | |
| G | Trip the Lights Fantastic | p-6adee4b5 | — | Baekjoon Online Judge (wayback) closed 2026-04-28 · Codeforces Gym | |
| H | Windows | p-fe235cf4 | — | Baekjoon Online Judge (wayback) closed 2026-04-28 · Codeforces Gym |
St statement · D test data · IV/OV input/output validator · So solutions · P complete package — filled = held.