ecna-2025
problem set — all sets · holdings by contest
- set id
- ecna-2025
- used by
- ecna-2025
- provenance
- Baekjoon ICPC category tree via Wayback (2026-11-02); site closed 2026-04-28; online-judge pages (2026-11-02, tools/mine_judge_links.py)
- data
- problemsets/ecna-2025.yaml
Problems (12)
| # | problem | internal id | held | solve online | notes |
|---|---|---|---|---|---|
| A | A Little Leftover Pizza | p-809b9183 | — | Baekjoon Online Judge (wayback) closed 2026-04-28 | |
| B | Andor Strikes Again | p-7417fbb0 | — | Baekjoon Online Judge (wayback) closed 2026-04-28 | |
| C | AROD | p-e5deafe0 | — | Baekjoon Online Judge (wayback) closed 2026-04-28 | |
| D | But I Want to Win | p-4b31662b | — | Baekjoon Online Judge (wayback) closed 2026-04-28 | |
| E | Chess Solitaire | p-0f44c821 | — | Baekjoon Online Judge (wayback) closed 2026-04-28 | |
| F | Fractional Sequence | p-bab59ff9 | — | Baekjoon Online Judge (wayback) closed 2026-04-28 | |
| G | How Many Balls? | p-4d8c9f0c | — | Baekjoon Online Judge (wayback) closed 2026-04-28 | |
| H | Move It, Slowpoke! | p-da718ed7 | — | Baekjoon Online Judge (wayback) closed 2026-04-28 | |
| I | Number Pyramid | p-8bc5ec20 | — | Baekjoon Online Judge (wayback) closed 2026-04-28 | |
| J | Polyomino Tiling | p-1151e22d | — | Baekjoon Online Judge (wayback) closed 2026-04-28 | |
| K | Triptych | p-5d23d270 | — | Baekjoon Online Judge (wayback) closed 2026-04-28 | |
| L | Valley Gulls | p-271a06ba | — | Baekjoon Online Judge (wayback) closed 2026-04-28 |
St statement · D test data · IV/OV input/output validator · So solutions · P complete package — filled = held.