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我想法是:

Posted by ACM06060 at 2007-09-29 13:48:25
In Reply To:很诡异啊。。 Posted by:ACM06060 at 2007-09-29 13:44:46
我想法是 
肯定最低下的要先移过去,那么上面的先得变成排好序放一堆的样子,然后又是一个逆过程把这一堆再放回去。不知道是不是这样?

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