C++

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

main()
{
char nm_petugas[30],nm_customer[30],tanggal_cekin[25],kode_kamar,*nama_kamar;
int lama_sewa,harga_sewa,jumlah_bayar,diskon,total_bayar,uang_bayar,uang_kembali;
cout<<"Penginapan PANDA,Inn\n";
cout<<"====================\n";
cout<<"Input Nama Petugas          : ";gets(nm_petugas);
cout<<"Input Nama Customer         : ";gets(nm_customer);
cout<<"Input Tanggal Check In      : ";gets(tanggal_cekin);
cout<<"====================================================\n";
cout<<"Pilih Kode Kamar[L/S/M]     : ";cin>>kode_kamar;
if(kode_kamar=='L'||kode_kamar=='l')
{nama_kamar="Lily";
harga_sewa=250000;}
else if(kode_kamar=='S'||kode_kamar=='s')
{nama_kamar="Sakura";
harga_sewa=150000;}
else
{nama_kamar="Mawar";
harga_sewa=75000;}
cout<<"Input Lama Sewa             : ";cin>>lama_sewa;
clrscr();

cout<<"                       Bukti Pemesanan Kamar                        \n";
cout<<"                       Penginapan Panda, Inn                        \n";
cout<<"                       ---------------------                        \n";
cout<<"Nama Petugas : "<<nm_petugas<<"          Nama Customer   : "<<nm_customer<<endl;
cout<<"                                      Tanggal Checkin : "<<tanggal_cekin<<endl;
cout<<"-------------------------------------------------------------------------\n";
cout<<"Nama Kamar yang dipesan   : "<<nama_kamar<<endl;
cout<<"Harga Sewa                : "<<harga_sewa<<endl;
cout<<"Lama Sewa                 : "<<lama_sewa<<" Hari\n";
cout<<"-------------------------------------------------------------------------\n";
jumlah_bayar=harga_sewa*lama_sewa;
cout<<"Jumlah Bayar              : "<<jumlah_bayar<<endl;
if(5<lama_sewa)
{diskon=0.1*jumlah_bayar;}
else if(3<lama_sewa)
{diskon=0.05*jumlah_bayar;}
else
{diskon=0;}
cout<<"Diskon                    : "<<diskon<<endl;
cout<<"-------------------------------------------------------------------------\n";
total_bayar=jumlah_bayar-diskon;
cout<<"Total Bayar               : "<<total_bayar<<endl;
cout<<"Uang Bayar                : ";cin>>uang_bayar;
uang_kembali=uang_bayar-total_bayar;
cout<<"Uang Kembali              : "<<uang_kembali<<endl;
cout<<"                   Terima Kasih Atas Kunjungan Anda                  ";
getch();
}