Program Penyewaan DVD / VCD

#include<iostream.h>

#include<iomanip.h>

#include<conio.h>

float biayadvd;

char nama[15],judul[35];

char tgp[20];

char tgk[20];

long int jumlah,dvd=5000;

int j;

void cetak();

void bayar();

void main()

{  int j;

            char pilih;

            do

            {

            clrscr();

            cout<<"+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++"<<endl;

            cout<<"                          PERSEWAAN CD/DVD RELAKSASI "<<endl;

            cout<<"                      MURAH MERIAH TANPA ADA KATA MAHAL"<<endl;

            cout<<"+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++"<<endl;

            cout<<"Nama Peminjam     : ";

            cin>>nama;

            cout<<"Jumlah yang disewa:";

            cin>>jumlah;

            cout<<endl;

            j=0;

            while (j<jumlah)

            {

            cout<<"Judul yang disewa : ";

            cin>>judul;

            j++;

            }

            cout<<"Tanggal pinjam    : ";

            cin>>tgp;

            cout<<"Tanggal Kembali   : ";

            cin>>tgk;

            bayar();

            cetak();

            cout<<"jika ingin melanjutkan lagi ketik [y]:";

            pilih=getch();

            }

            while(pilih=='y'||'Y');

}

void bayar()

{     dvd=5000;

            float biaya;

                         biaya = dvd * jumlah;

}

void cetak()

{  float biaya;

            cout<<"                         ___________________________________                   "<<endl;

            cout<<"                             PERSEWAAN DVD RELAKSASSI"<<endl;

            cout<<"_______________________________________________________________________________"<<endl;

            cout<<""<<endl;

            cout<<"|     Nama               |            Judul               |         biaya         |"<<endl;

            cout<<"_______________________________________________________________________________"<<endl;

            cout<<setw(13)<<nama<<setw(25)<<judul<<setw(30)<<biaya<<endl;

            cout<<"_______________________________________________________________________________"<<endl;

            cout<<"===================================TERIMA KASIH================================="<<endl;

            cout<<"=================================ATAS KUNJUNGANNYA=============================="<<endl;

}