Riichi!!
problem — every listed problem · all sets
- internal id
- p-91b9cf71
- appearances
- kunming-2020 (kunming-2020) — K
- held
- not recorded yet
- solve online
- NowCoder 牛客竞赛 (Niúkè, 'cow guest') id 220392
- data
- problemsets/kunming-2020.yaml
St statement · D test data · IV/OV input/output validator · So solutions · P complete package — filled = held.