Bird tree
problem — every listed problem · all sets
- internal id
- p-228f0e7c
- appearances
- nwerc-2011 (nwerc-2011) — B
- held
- StDIVOVSoP
- solve online
- Baekjoon Online Judge (wayback) closed 2026-04-28 id 3652
- data
- problemsets/nwerc-2011.yaml
St statement · D test data · IV/OV input/output validator · So solutions · P complete package — filled = held.