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

#include<stdio.h>

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);

}