hacker_hzh

摘要： 递推就行啦啦啦啦啦代码如下： 1 #include <stdio.h> 2 #include <stdlib.h> 3 4 int main() 5 { 6 double value[50000], sum; 7 int i, n; 8 9 value[1] = 1;10 value[2] = 3;11 for( i = 3, sum = 1.0 / 2 + 1.0 / 3; i < 50000; i ++ )12 {13 value[i] += value[i-1] + 1.0 + sum * 2.0;14 ... 阅读全文