Ghost
problem — every listed problem · all sets
- internal id
- p-d64961ca
- appearances
- poland-2019 (poland-2019) — K
- held
- not recorded yet
- solve online
- Baekjoon Online Judge (wayback) closed 2026-04-28 id 18052
- data
- problemsets/poland-2019.yaml
St statement · D test data · IV/OV input/output validator · So solutions · P complete package — filled = held.