Write a C program to find the factorial of a given integer using recursive function

In this article, we will write a C program to find the factorial of a given integer using a recursive function.

ALGORITHM: 

main program 

Step 1: start 

Step 2: read n 

Step 3: call sub program as f=fact(n) 

Step 4: print f value 

Step 5: stop 

Sub program: 

Step 1: initialize the f 

Step 2: if n= = 0 or n == 1 return 1 to main program if not goto step 3 

Step 3: return n*fact(n-1) to main program 

FLOW CHART: 

Write a C program to find the factorial of a given integer using recursive function

#include <stdio.h>
#include <conio.h>

int fact(int);
void main()
{
	int n, res;
	clrscr();
	printf("ENETR A NUMBER:\n");
	scanf("%d", &n);
	res = fact(n);
	printf("THE FACTORIAL OF A GIVEN NUMBER IS -> %d", res);
	getch();
}
int fact(int n)
{
	int r;
	if (n == 0)
		return (1);
	else
	{
		r = n* fact(n - 1);
		return (r);
	}
}

INPUT:

ENTER A VALUE FOR n
5

OUTPUT:

THE FACTORIAL OF A GIVEN NUMBER IS -> 120

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