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简单证明~

Posted by cuixin at 2009-06-06 10:56:50 on Problem 1862
假设有a,b,c 且结果是r
则 r = 2*sqrt(2*sqrt(a*b)*c)
则 r^2/8 = sqrt(a*b*c*c);
若要 r 最小 则 c 一定是 a,b,c 中最小的 所以就是不断地取两个大数相乘喽~~

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