Kingdom of Tree
problem — every listed problem · all sets
- internal id
- p-20e4ccd7
- appearances
- hefei-2015 (hefei-2015) — J
- held
- not recorded yet
- solve online
- HDU Online Judge (acm.hdu.edu.cn) id 649/1010
- data
- problemsets/hefei-2015.yaml
St statement · D test data · IV/OV input/output validator · So solutions · P complete package — filled = held.