View Code of Problem 71

#include<stdio.h>
int main()
{
  double a1=1,a2=1,c,h;
  int n;
  double sum=0;
  scanf("%d",&n);
  int i=0;
  for(i=0;i<n;i++)
  { c=a2;
    a2=a1;
    a1=c+a2;
    
    h=a1/a2;
    //printf("%.2lf",a1/a2);
    sum=sum+h;
    
  }
  printf("%.2lf\n",sum);
  return 0;
  
  
}