Calculate Factorial of a number using Recursion (C-Program)

Write a program to calculate the factorial of a number.
(Recursion method )

#include
#include
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);

getch();

}