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Re:这样的做法可以证明是正确的吗？

Posted by frkstyc at 2005-05-11 21:06:36 on Problem 1230
In Reply To:这样的做法可以证明是正确的吗？ Posted by:harvard at 2005-05-11 16:45:25 
这个应该是可以证明的，简单的说就是这样：覆盖某一列的墙是否要被拿掉，和它是否覆盖左边的列没有关系；拿掉右边界大的墙比拿掉右边界小的墙更优
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