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Re:注意~!~!~!需要注意的数据

Posted by ckl at 2010-02-03 16:33:17 on Problem 1308
In Reply To:注意~!~!~!需要注意的数据 Posted by:xuhanqiu at 2006-08-18 09:48:42
> 2: 1 1 0 0 不是树 不能自己指向自己
我就是因为这个wa的

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