C++ Kalkulator Sederhana

//C++ Membuat Kalkulator Sederhana
//copy-kan script ini ke program C++

#include <iostream>
#include <conio>

long double bilpertama, bilkedua, hasiltambah, hasilkurang, hasilkali, hasilbagi;
char tanya;

void main()
{
   do
   {
      clrscr();

      cout<<"=================================================="<<endl;
      cout<<"kalkulator sederhana"<<endl;
      cout<<"=================================================="<<endl;
      cout<<endl;
      cout<<"masukkan bilangan pertama = "; cin>>bilpertama;
      cout<<"masukkan bilangan kedua   = "; cin>>bilkedua;
      cout<<endl;
      cout<<"--------------------------------------------------"<<endl;
      cout<<endl;

      hasiltambah = bilpertama+bilkedua;
      hasilkurang = bilpertama-bilkedua;
      hasilkali   = bilpertama*bilkedua;
      hasilbagi   = bilpertama/bilkedua;

      cout<<"hasil tambah = "<<hasiltambah<<endl;
      cout<<"hasil kurang = "<<hasilkurang<<endl;
      cout<<"hasil kali   = "<<hasilkali<<endl;
      cout<<"hasil bagi   = "<<hasilbagi<<endl;

      cout<<endl;
      cout<<"=================================================="<<endl;
      cout<<"ANDREY ZEOSHIROMITZU"<<endl;
      cout<<"=================================================="<<endl;
      cout<<endl;

      cout<<"ulangi lagi (y / n) ? = "; cin>>tanya;
   }
   while ((tanya=='y')||(tanya=='Y'));
getch();
}