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题目链接 https://vjudge.net/problem/CodeForces 1132F 题面 Description You are given a string $s$ of length $n$ consisting of lowercase Latin letters. You ma 阅读全文
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题目链接 https://vjudge.net/problem/CodeForces 1132C 题面 Description You have a long fence which consists of $n$ sections. Unfortunately, it is not painted 阅读全文
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题目链接 https://vjudge.net/problem/CodeForces 1121C 题面 Description Vasya likes taking part in Codeforces contests. When a round is over, Vasya follows al 阅读全文