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Re:虽然是用kruskal的，因没考虑-1，wa一次，囧。。In Reply To:第一个prim 两次wa后ac 注意两点 Posted by:hitfrank at 2010-03-18 14:37:05 > 1 输入有可能出现重边 > 2 无生成树时输出-1 > 貌似第一次这两种情况都没有考虑到 Followed by:
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