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这样的做法可以证明是正确的吗?

Posted by harvard at 2005-05-11 16:45:25 on Problem 1230
In Reply To:那些程序估计弄到数据了,这个题单输入处理就不只0.2k Posted by:frkstyc at 2005-05-11 13:28:23
> 把墙按右边界从大到小排序,从左到右一列列的贪心,每次删除右边界最大的墙

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