fibonacci series recursion

int fib (int n) {
        if (n < 2)
            return 1;
        return fib(n-1) + fib(n-2);
    }

#include<stdio.h>
int main()
{
int first=0, second=1, i, n, sum=0;
printf("Enter the number of terms: ");
scanf("%d",&n);
//accepting the terms
printf("Fibonacci Series:");
for(i=0 ; i<n ; i++)
{
if(i <= 1)
{
sum=i;
}
//to print 0 and 1
else
{
sum=first + second;
first=second;
second=sum;
//to calculate the remaining terms.
//value of first and second changes as new term is printed.
}
printf(" %d",sum)
}
return 0;
}

def fib (n):
  if n == 0 or n ==1:
      return n  
  else:
        return fib(n-2) + fib(n-1)
#n = int(input("please enter a number  "))

n=10
for index,num in enumerate(range(n+1)):
     print(f"F{index} :", fib(num))