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Re:算逆序数可以O(n)完成的

Posted by liuaohanjsj at 2013-02-14 12:16:25 on Problem 1007
In Reply To:Re:算逆序数可以O(n)完成的 Posted by:puke at 2011-11-18 12:40:52
不就是类似于动规的记忆化么

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