Can someone show me what wrong with my code

Question

include <stdio.h>
int fib(int f);
int main() {
int a;
scanf ("%d",&a);
printf ("enter a numbe\n");
printf ("fac of %d is %d\n",a, fib (a) );
return 0;
}

int fib (int f) {

if (f == 1 || f == 0) {
return 1;
}
else {
return ( fib(f)*(f-1)+fib(f)*(f-2) );
}
}

Answer 1

it's #include(with #) and not just include.

I think its
return f * fib(f-1);
Only, if it is Factorial of a number code.

Answer 2

And actually return statement condition, I think is
return fib(n-1) + fib( n-2);
Only, if it is Fibonacci code.