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How Many to Be Happy? 题目描述 Let G be a connected simple undirected graph where each edge has an associated weight. Let’s consider the popular MST (Mini 阅读全文
posted @ 2018-10-04 19:50
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拓扑序计数 时间限制: 1 s 空间限制: 128000 KB 拓扑序计数 时间限制: 1 s 拓扑序计数 时间限制: 1 s 空间限制: 128000 KB 空间限制: 128000 KB 空间限制: 128000 KB 题目描述 Description 求一颗有根树/树形图的拓扑序个数. 输入描 阅读全文
posted @ 2018-10-04 00:21
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