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陷阱

Posted by x5471140 at 2009-07-27 11:23:45 on Problem 3670 and last updated at 2009-07-27 11:25:03
这题根本不是DP题啊
这题按照最长不上升(下降)序列的方法DP,复杂度O(n^2),不可实现
关键问题在队伍只有3组,抓住这个关键

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