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坑爹啊。。太坑爹了。。 因为忘记加freopen，调了好久啊。。 先用枚举下限+二分答案+并查集做了一遍，后来看了大家的讨论，枚举答案+kruskal也过了。。。T。T泪奔 Followed by: Post your reply here: |
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