Codeforces Round 140 (Div. 2) · AC 题库

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Codeforces

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Codeforces Round 140 (Div. 2)

2012/09/24 23:30120 分钟227

AWhere do I Turn?Where do I Turn?

BEffective ApproachEffective Approach

CFlying Saucer SegmentsFlying Saucer Segments

DNaughty Stone PilesNaughty Stone Piles

EAnniversaryAnniversary