ecna-2025
2025 ICPC North America East Central Regional Contest
scoreboard archived · website archived
- series
- ecna regional · North America
- season
- 2025–2026 (the year in the id is the season label, not the date)
- sites
- — administrative
Grand Valley State University › Allendale › Michigan › United States — Grand Valley Site
Purdue University › West Lafayette › Indiana › United States
Youngstown State University › Youngstown › Ohio › United States — Youngstown Site
University of Windsor › Windsor › Ontario › Canada — Windsor Site - advances to
- nac-2026
- next edition
- ecna-2026 upcoming
- previous edition
- ecna-2024
- subset of
- east-na-2025
- CMS ids
- 9335 (admin · finder)
Website
Results
Best tier first. live = the address as is · wayback = pinned to the time meant when known · archived (time) = our capture, on the public replay · raw = the capture file untouched.
scoreboard live · wayback · archived (2026-09-01 07:58) · raw · archived 2 (2025-11-11 01:43) · raw https://naeast25.kattis.com/contests/naeast25/standings/ecna/all (2025-11-11 01:43) live
ICPC standings live · wayback https://icpc.global/regionals/finder/East-Central-NA-2026/standings live
Problems
- problem set
- ecna-2025
- published set
- https://naeast25.kattis.com/contests/naeast25/problems · wayback · archived · source live
- solve online
- Baekjoon Online Judge (wayback) archived closed 2026-04-28
- source
- 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)
12 of ? problems listed
| # | problem | held | solve online | notes |
|---|---|---|---|---|
| A | A Little Leftover Pizza | — | Baekjoon Online Judge (wayback) closed 2026-04-28 | |
| B | Andor Strikes Again | — | Baekjoon Online Judge (wayback) closed 2026-04-28 | |
| C | AROD | — | Baekjoon Online Judge (wayback) closed 2026-04-28 | |
| D | But I Want to Win | — | Baekjoon Online Judge (wayback) closed 2026-04-28 | |
| E | Chess Solitaire | — | Baekjoon Online Judge (wayback) closed 2026-04-28 | |
| F | Fractional Sequence | — | Baekjoon Online Judge (wayback) closed 2026-04-28 | |
| G | How Many Balls? | — | Baekjoon Online Judge (wayback) closed 2026-04-28 | |
| H | Move It, Slowpoke! | — | Baekjoon Online Judge (wayback) closed 2026-04-28 | |
| I | Number Pyramid | — | Baekjoon Online Judge (wayback) closed 2026-04-28 | |
| J | Polyomino Tiling | — | Baekjoon Online Judge (wayback) closed 2026-04-28 | |
| K | Triptych | — | Baekjoon Online Judge (wayback) closed 2026-04-28 | |
| L | Valley Gulls | — | 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. Data: problemsets/ecna-2025.yaml.
4 raw capture(s) in the archive repo (raw files).