Hatena::Grouptopcoder

k_operafanのTopCoder日記

2011-11-04

[]Codeforces Beta Round #92 Div1 00:27

敗北

A問題

2の倍数と2で割ったら素数になる2の倍数の数を同じ色で塗るようにする.

貪欲法

B問題

座標を45度回転して,隣接移動及び斜め移動が出来ると考える.

オーバーフローによりWA

C問題

分からなかった

D問題

Suffix Arrayをごにょごにょすれば解けそうな気がしたけど…

結果

点数:936+0+0+0+0=936

順位:180位

レート:1874(-9)

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