Ball
problem — every listed problem · all sets
- internal id
- p-10afdebd
- appearances
- nanjing-2013 (nanjing-2013) — J
- held
- not recorded yet
- solve online
- HDU Online Judge (acm.hdu.edu.cn) id 488/1010
- data
- problemsets/nanjing-2013.yaml
St statement · D test data · IV/OV input/output validator · So solutions · P complete package — filled = held.