Contoh koding c++ mencari nilai faktorial

#include <conio.h>
#include <iostream.h>

int main () {
int bil, n;
long int hasil ;
char jawab ;
 do{
cout<<"===Mencari Nilai Faktorial ==";
cout<<"\n===dari Bilangan Desimal ===";
cout<<"\n============================";
cout<<"\n\nMasukkan angka = ";
cin>>n;
hasil=1;
for (bil=n; bil>=1;bil--)
{
hasil=hasil*bil;
}
cout<<"Hasil Faktorial = "<<hasil<<"\n";

cout<<"\nCoba lagi (y/t) ?" ; cin>>jawab;
}
while (jawab == 'y' || jawab == 'y' );

 getch () ;
}