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problem — every listed problem · all sets
- internal id
- p-3c6ae74a
- appearances
- changchun-2015 (changchun-2015) — C
- held
- not recorded yet
- solve online
- HDU Online Judge (acm.hdu.edu.cn) id 646/1003
- data
- problemsets/changchun-2015.yaml
St statement · D test data · IV/OV input/output validator · So solutions · P complete package — filled = held.