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说到这个我想到一个有意思的事情（见内）In Reply To:我的O(mn2^m)的dp好慢，有谁说一下O(n2^m)的dp？ Posted by:frkstyc at 2005-05-30 17:05:34 2411 Mondriaan's Dream那个题，我也试状态DP过的，后来我去问候启明，他给了我一个直接算的数学公式，里面有一个sigma和两个pi，还有cos.....我说cos是怎么来的，他说是量子力学方法推出来的.....我狂ft~ Followed by:
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