C Program to Find Factorial Using Function with Recursion and Without Recursion

/*
Write a Program using function to Find out Factorial of given number with and without recursion. 
*/

#include <stdio.h>
    
int fact_rec(int); \\ With Recursion
int fact(int);        \\Without Recursion

int main(void) 
{
    int n;
    printf(" Enter Value n = ");
    scanf("%d",&n);
    printf("\n Without Rec = %d",fact(n));
    printf("\n With  Rec = %d",fact(n));
    return 0;
}
    
int fact(int n) \\Without Recursion
{
    int ans = 1;
    while(n>=1)
    {
    ans = ans * n;
    n--;
    }
    return ans;
}
     
int fact_rec(int n) \\ With Recursion
{
    int ans = 1;
    if(n==1)
    {
    return ans;
    }
    ans =  ans * fact_rec(n-1);
}