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最小生成树好题~~不过比较菜、一直没有看出来~~~

Posted by xiaowei123456 at 2017-12-01 14:57:14 on Problem 3723 and last updated at 2017-12-01 14:58:18
用并查集+Kruskal 迭代查找+路径压缩 稳稳滴~~~

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