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错字……

Posted by frkstyc at 2006-03-11 22:03:36 on Problem 1470
In Reply To:请大牛指教 (for example in Figure 1 the ancestors of node 2 are 2 and 5)是什么意思啊？ Posted by:firstacm at 2006-03-11 22:02:37 
> ２和５的祖先应该是５啊
> 我的程序老是WA
> 急救
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