Factorial Number using Recursion

#include<stdio.h>
#include<conio.h>
int fact(int);
int main()
{
int a,f;
printf("Enter an Integer");
scanf("%d",&a);
f=fact(a);
printf("Factorial number Of %d is : %d",a,f);
getch();
}
int fact(int num)
{
int f;
if(num==1||num==0)
return(1);
else
f=num*fact(num-1);
return(f);
}