Impenetrable Wall
problem — every listed problem · all sets
- internal id
- p-7fd998f7
- appearances
- caribbean-2020 (caribbean-2020) — I
- held
- not recorded yet
- solve online
- Baekjoon Online Judge (wayback) closed 2026-04-28 id 22272
- data
- problemsets/caribbean-2020.yaml
St statement · D test data · IV/OV input/output validator · So solutions · P complete package — filled = held.