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囧。。f[i]*(f[i]-1)/2中间的f[i]*(f[i]-1)计算会超出int的

Posted by huangwei_njust at 2011-05-27 19:45:28 on Problem 3844 and last updated at 2011-05-27 19:46:48
In Reply To:让人orz的题目 Posted by:gripleaf at 2011-05-08 16:55:16


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