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对牌的个数n作归纳,用到杠杆平衡条件

Posted by bufan_2001 at 2006-08-16 19:05:53 on Problem 1607
In Reply To:Re:float改成double就好了 Posted by:houxuanfelix at 2006-07-14 22:41:22
> 这个公式是怎么推出来的啊?????大牛讲一下 啊

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