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Re:同志们：利用并查集是错的，我用并查集也AC了，但是仔细研究后，发现是错了，数据太弱了In Reply To:Re:同志们：利用并查集是错的，我用并查集也AC了，但是仔细研究后，发现是错了，数据太弱了 Posted by:tangcong506 at 2011-10-30 18:25:00 这个并查集应该是没有问题的 因为题目的意思边是没有方向的 它仅仅是给出了一条边 方向随便自己定 Followed by:
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