Codeforces Round 309 (Div. 1) · AC 题库

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Codeforces

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Codeforces Round 309 (Div. 1)

2015/06/25 00:30130 分钟553

AKyoya and Colored BallsKyoya and Colored Balls

BKyoya and PermutationKyoya and Permutation

CLove TrianglesLove Triangles

DNudist BeachNudist Beach

EKyoya and TrainKyoya and Train