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结论应该是对的, 因为任意一个偶圈上, 给每个节点赋值后, 异号边一定是偶数条.In Reply To:就是个做法，貌似不是因为数据弱，好像这个结论是对的……我想了n多算法之后最终发现原来题目<=16是蒙人 Posted by:doraemonok at 2008-01-31 18:11:41 Followed by:
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