Factorial of a number using Recursion

Write a program to calculate the factorial of a number. Use the concept of recursion

instead of using loops.

#include<stdio.h>

void main()

{

int a, fact;

printf("\nEnter any number: ");

scanf ("%d", &a);

fact=rec (a);

printf("\nFactorial Value = %d", fact);

}

rec (int x)

{

int f;

if (x==1)

return (1);

else

f=x*rec(x-1);

return (f);

}

Output:

Enter any number:3

Factorial Value = 6

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