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Re:很明显是楼主数错了。同一种情况的不同顺序是算一种的。

Posted by StudyRush at 2009-11-04 12:56:19 on Problem 1664
In Reply To:这个题是不是有问题? Posted by:liuyuyangfoam at 2005-12-20 15:42:07

> 
> 7个苹果放3个盘子里不是有:
> 7 0 0 
> 6 1 0 
> 5 2 0 
> 5 1 1 
> 4 3 0 
> 4 2 1 
> 3 4 0 
> 3 3 1 
> 3 2 2 
> 
> 9中方法么?
> 为什么说是8种?

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