某岛

… : "…アッカリ～ン . .. . " .. .
September 30, 2011

PQ Tree && Planarity Testing

September 30, 2011

。。。扫描线。。

September 30, 2011

SPOJ 9547. Counting d-pairs

September 30, 2011

SPOJ 9569. Sum of Pairwise Products

September 29, 2011

Codeforces Beta Round #88

September 28, 2011

POJ 2528. Mayor’s posters

September 27, 2011

POJ 2777. Count Color

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