Codeforces Round 245 (Div. 2) · AC 题库

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Codeforces

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Codeforces Round 245 (Div. 2)

2014/05/11 23:40120 分钟430

APoints and Segments (easy)Points and Segments (easy)

BBalls GameBalls Game

CXor-treeXor-tree

DWorking outWorking out

EGuess the TreeGuess the Tree