C++ FACTORIAL Programmes

#include<iostream.h>
#include<conio.h>
void main()
{
int n,fact;
int rec(int); clrscr();
cout<<"Enter the number:->";
cin>>n;
fact=rec(n);
cout<<endl<<"Factorial Result are:: "<<fact<<endl;
getch();
}
rec(int x)
{
int f;
if(x==1)
return(x);
else
{
f=x*rec(x-1);
return(f);
}
}