View Code of Problem 71

# include<stdio.h>
int main(void)
{
  int n,t;
  float i = 2,j = 1,sum = 0,m;
  scanf("%d",&n);
    for(t=0;t<n;++t)
    {
      sum = sum +i/j;
      m = i;
      i = j + i;
      j = m;
    }
  printf("%0.2f",sum);
  return 0;
}