Countdown
problem — every listed problem · all sets
- internal id
- p-6615e4d7
- appearances
- ecna-2005 (ecna-2005) — B
- held
- not recorded yet
- solve online
- Baekjoon Online Judge (wayback) closed 2026-04-28 id 4075
DMOJ id ecna05b
Codeforces Gym id 100650/B - data
- problemsets/ecna-2005.yaml
St statement · D test data · IV/OV input/output validator · So solutions · P complete package — filled = held.