某島

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

PQ Tree && Planarity Testing

September 30, 2011

。。。掃描線。。

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