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明白了。被数据范围骗了,一直在卡搜索卡不过去~~ 唉

Posted by RoBa at 2006-08-04 13:30:37 on Problem 2923
In Reply To:可以用两步DP做,贪心似乎是错的。 Posted by:mostleg at 2006-08-04 09:37:11


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