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虽然这是好久的贴了,我还是要回.可以是O(n)的

Posted by tengshengbo at 2005-08-12 00:25:39 on Problem 1976
In Reply To:这题我O(N^2)DP,时间用的好多呀 Posted by:windbells at 2004-11-28 21:31:32


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