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我来给个说明

Posted by zyz at 2007-07-03 20:35:32 on Problem 2663
In Reply To:同志们,看看我的程序,测试数据都是对的,而且我没能发现错误,请求帮助 Posted by:gardner at 2005-10-15 23:54:53
3*x+2*y
3的情况:两排切出来,是3; 乘以(length-2)*3组成的总数
2的情况:
   4排切出来,是2;乘以(length-4)*3组成的总数
   6排切出来,是2;乘以(length-6)*3组成的总数
   ...

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