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用这个题的思路 :) http://acm.pku.edu.cn/JudgeOnline/problem?id=2559

Posted by Sempr at 2008-02-01 01:42:54 on Problem 3494
In Reply To:这题怎么做？完全没思路。。。 Posted by:RebornACM at 2008-01-31 21:04:40 
怎么生成这个数组……不用我多说吧 嘿嘿


> 看上去有点像DP，给点提示吧
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