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谢谢了,这样我总算明白题目的意思了...哎...

Posted by mayp at 2007-03-20 15:29:22 on Problem 2605
In Reply To:Re:复杂的表面下是如此的简洁! Posted by:wpolly at 2007-03-10 11:10:30 
> n=2的情况也可以化为m%3列
> 
> xxxxxxx  ----> xxxxx  -----> xxxxx ----> xxx  x ----> xxx xx ---> xxxx
> xxxxxxx        xxxxx         xxxxx       xxxxx        xxxx        xxxx
>                     xx           x           x
> 
>
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