View Code of Problem 71

#include<stdio.h>
void main(){
	double n,a=2,b=1,t,sum=0;
  	scanf("%lf",&n);
  	while(n--){
           sum=+a/b;
  	  t=a;
          a=a+b;
          b=t;      
        }
  printf("%.2lf",sum);

}