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前n根去掉m根的方法数。O(n^2)。你的快,不过写起来应该麻烦一些吧!

Posted by zhucheng at 2005-08-30 21:25:34 on Problem 2597
In Reply To:DP方程是什么?我的O(n) Posted by:faintzw at 2005-08-30 21:19:13


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