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Re:谁给点数据吧。。。wa死了

Posted by wegnahz at 2009-11-02 16:11:39 on Problem 2763
In Reply To:谁给点数据吧。。。wa死了 Posted by:wegnahz at 2009-11-02 14:22:36
> RT
卡了一下午。。。终于发现,当求x和自身的lca时没处理好。。。

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