C语言实现分数序列前n项和计算，输入n输出精确结果

```c #include <stdio.h> int main() { int n; scanf("%d", &n); double sum = 0.0; double numerator = 1, denominator = 2; for (int i = 0; i < n; i++) { sum += numerator / denominator; double temp = numerator; numerator = denominator; denominator = temp + denominator; } printf("sum=%.4f", sum); return 0; } ``` ######[AI写代码神器 | 125点数解答 | 2024-10-19 15:44:14]