Code Lock
problem — every listed problem · all sets
- internal id
- p-4557e3cb
- appearances
- south-america-south-2009 (south-america-south-2009) — C
- held
- not recorded yet
- solve online
- Baekjoon Online Judge (wayback) closed 2026-04-28 id 5708
- data
- problemsets/south-america-south-2009.yaml
St statement · D test data · IV/OV input/output validator · So solutions · P complete package — filled = held.