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我也要啊,我一直不了解这里怎么用dp的技巧

Posted by Washington at 2005-07-14 01:20:23 on Problem 2478
In Reply To:如果有兴趣,我可以发标程给你看看,Euler函数利用的时候有点dp的技巧:) Posted by:magic_pig at 2005-07-14 00:46:14
mizhika1&163.com 3x3x ^ ^

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