首页 > [USACO 2014 Ope B]Decorating The Pastures
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发表于 2020-03-18 22:42:18
网址:https://ac.nowcoder.com/acm/contest/3888/G 题目描述 Farmer John has N (1 <= N <= 50,000) pastures, conveniently numbered 1...N,connected by M (1 展开全文

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