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Re:大哥大姐们这道题怎么做啊?

Posted by freebsdx at 2008-09-08 22:35:18 on Problem 2915
In Reply To:大哥大姐们这道题怎么做啊? Posted by:tangguojun at 2006-12-05 22:30:28
> 想了一个星期了,一点思路都没有,谁能帮帮我呀!!感谢万分!
DP

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