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Re:我用动态规划：Min[a][b]表示前a个字符插入b个逗号所得到的最末位数字的最小值。在ZJU上ac了，但是在这超时（改了快有4个小时），谁知道更好的算法，谢了！

Posted by liulike at 2003-08-07 11:10:33 on Problem 1239
In Reply To:我用动态规划：Min[a][b]表示前a个字符插入b个逗号所得到的最末位数字的最小值。在ZJU上ac了，但是在这超时（改了快有4个小时），谁知道更好的算法，谢了！ Posted by:rruucc at 2003-08-07 01:55:40 
据说是两次动规
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