‘C’ to calculate factorial of a number using recursion.

C File =>

/* Write a recursive function in ‘C’ to calculate factorial of a number. Use 

this function in main. */

#include<stdio.h>

int main() 

{

      int num;

     // defining recursive function 

     int fact(int n)

    {

         if(n==1 || n==0)

                 return 1;

         else

                 return(n*fact(n-1));

     }

      printf("\n Enter number : ");

      scanf("%d",&num);

      printf("\n Factorial of %d is %d",num,fact(num));

     return 0;

}