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这个……还是自己想吧，有些东西问不出来的

Posted by frkstyc at 2005-10-22 18:24:41 on Problem 1011
In Reply To:请问，有没有谁“排序+回溯”过了的，我老超时，不知道还能怎么改。 Posted by:cpp050400448168 at 2005-10-22 18:22:40 
> 谢谢！
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