**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

**;**

**}**