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要用并查集

Posted by Acsaga at 2006-09-21 14:42:47 on Problem 2524
In Reply To:这么快的东西怎么提交还错?嫌我时间用的少? Posted by:sunnvya at 2006-09-21 11:37:33
比如输入
5 3
1 2
3 4
2 3
你的对吗?

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