Codeforces Round # 185 Div II http://codeforces.com/contest/312Codeforces Round # 185 Div IIに参加。システムテストに不備があったようで、Unratedであった。 A. Whose sentence is it? http://codeforces.com/contest/312/problem/Aやるだけの問題で…
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