Calculate a=1, a2=1/1=a1

#include<stdlib.h>
#include<stdio.h>
float fun(int n);                           
int main()
{
    
	 int n;
	 printf("\nplease enter n:");
	 scanf("%d",&n);
	 printf("A%d=%lf\n",n,fun(n));
	 
}
float fun(int n)
{
    
	 float A=1;
	 int i;
	 for(i=2;i<=n;i++)
	 {
    
	 	 A=1.0/(1+A);
	 }
	 return A;
}