Factorials with Recursive Non Recursive

Write C programs that use both recursive and non-recursive functions - To find the factorial of a given integer.

#include<stdio.h>

#include<conio.h>

unsigned int recr_factorial(int n);

unsigned int iter_factorial(int n);

void main()

{

  int n,i;

  long fact;

  clrscr();

  printf("Enter the number: ");

  scanf("%d",&n);

  if(n==0)

    printf("Factorial of 0 is 1\n");

  else

  {

printf("Factorial of %d Using Recursive Function is %d\n",n,recr_factorial(n));

printf("Factorial of %d Using Non-Recursive Function is %d\n",n,iter_factorial(n));

   }

   getch();

}

/* Recursive Function*/

unsigned int recr_factorial(int n) {

    return n>=1 ? n * recr_factorial(n-1) : 1;

}

/* Non-Recursive Function*/

unsigned int iter_factorial(int n) {

    int accu = 1;

    int i;

    for(i = 1; i <= n; i++) {

    accu *= i;

    }

    return accu;

}