随笔分类 -  数据结构--并查集

Building Forest CodeForces - 195E
摘要：Building Forest CodeForces - 195E 这题意真是难懂啊...话说"An oriented weighted forest is an acyclic weighted digraph in which from each vertex at most one edge 阅读全文
posted @ 2017-10-11 15:12 hehe_54321 阅读(229) 评论(0) 推荐(0)

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