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Re:问一个数列的求和公式

Posted by gemenhao at 2006-05-13 20:15:29 on Problem 1019
In Reply To:问一个数列的求和公式 Posted by:wc171170 at 2006-05-12 21:09:23
直接分段统计:
static int n6[] =  {0,9,189, 2889,38889,488889};

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