Kalkulator Sederhana

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

main(){
int bil1,bil2,pil;
float hsl;
cout<<"Pilihlah salah satu operasi yang anda inginkan :"<<endl;
cout<<"[1] Operasi Penjumlahan\n";
cout<<"[2] Operasi Pengurangan\n";
cout<<"[3] Operasi Perkalian\n";
cout<<"[4] Operasi Pembagian\n";
cout<<"Masukkan pilihan anda : ";
cin>>pil;

switch (pil)
  {  case 1:
          cout<<"Input bil 1 = ";
          cin>>bil1;
          cout<<"Input bil 2 = ";
          cin>>bil2;
      hsl=bil1+bil2;
      cout<<"Hasil penjumlahannya = "<<hsl<<endl<<endl;
      break;
  case 2:
          cout<<"Input bil 1 = ";
          cin>>bil1;
          cout<<"Input bil 2 = ";
          cin>>bil2;
      hsl=bil1-bil2;
      cout<<"Hasil pengurangannya = "<<hsl<<endl<<endl;
      break;
  case 3:
          cout<<"Input bil 1 = ";
          cin>>bil1;
          cout<<"Input bil 2 = ";
          cin>>bil2;
      hsl=bil1*bil2;
      cout<<"Hasil perkaliannya = "<<hsl<<endl<<endl;
      break;
  case 4:
          cout<<"Input bil 1 = ";
          cin>>bil1;
          cout<<"Input bil 2 = ";
          cin>>bil2;
      hsl=bil1/bil2;
      cout<<"Hasil pembagiannya = "<<hsl<<endl<<endl;
      break;
  default :
      cout<<"Anda tidak memilih apa-apa";
   }
getch();
}