#include<stdio.h> void main() { double a = 1, b = 2, i = 0, n; double sum = 0, x=0; scanf("%lf", &n); for(i=0; i<n; i++) { sum = sum + b/a; x = a + b; a = b; b = x; } printf("%.2lf", sum); }
Double click to view unformatted code.