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Re:那个公式的b*(n-1)/2 是什么意思？，那个公式是怎么推出来的，麻烦高手指点一下，呵呵。。。

Posted by smilesmile at 2005-08-12 00:08:16 on Problem 1455
In Reply To:那个公式的b*(n-1)/2 是什么意思？，那个公式是怎么推出来的，麻烦高手指点一下，呵呵。。。 Posted by:tcx at 2005-07-22 20:06:09 
你无聊啊，高中有没有上数学课啊。就是找最少值问题
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