参考代码:
#include <stdio.h> double sum(int n); int main(void) { int count = 0; //计算次数 scanf("%d", &count); printf("%.2f\n", sum(count)); return 0; } double sum(int n) { double total = 0.0; //计算总值 double member = 2.0; //分子 double denominator = 1.0; //分母 double number = 0.0; //替换值 int num; for (num = 1; num <= n; num++) { total += member / denominator; number = denominator; denominator = member; member = number + member; } return total; }
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