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thx

Posted by Mithril at 2007-11-18 10:38:04
In Reply To:2*n的格子,最多选择k个矩形,某个格子被选了可以得到x分,不被选可以得到y分,问最多可得多少分 Posted by:windy7926778 at 2007-11-18 10:35:11


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