Codeforces Round 128 (Div. 2) · AC 题库

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Codeforces

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Codeforces Round 128 (Div. 2)

2012/07/03 23:30120 分钟203

ATwo ProblemsTwo Problems

BGame on PaperGame on Paper

CPhotographerPhotographer

DHit BallHit Ball

ETransportationTransportation