Pembelian Bensin Dengan Pilihan Menu C++

Untuk syntaknya :

#include <iostream.h>

#include <conio.h>

#include <stdio.h>

void main()

{

 char a,b;

 int beli,liter,bayar,kembali,u,jumlah;

 long int uang,temp,data[5]={10000,5000,1000,500,100};

 up:

 clrscr();

 cout<<"Beli Bnesin dalam satuan :"<<endl<<endl;

 cout<<"1.Satuan Harga"<<endl;

 cout<<"2.Satuan Berat"<<endl;

 cout<<"Pilihan Anda (1 atau 2)    : ";cin>>a;

 cout<<endl<<endl;

 if (a=='1')

   {

    clrscr();

    cout<<"          HARGA         "<<endl;

    cout<<"     (Rp.4500,-/liter)   "<<endl;

    cout<<"=========================="<<endl;

    cout<<"jumlah beli  : Rp. ";cin>>beli;            

    if (beli>4500)

    {cout<<"uang bayar   : Rp. ";cin>>bayar;

    clrscr();

    cout<<"          BERAT         "<<endl;

    cout<<"==========================";

    liter=beli/4500;

    cout<<endl<<"         "<<liter<<" LITER";

    cout<<endl<<"==========================";

    kembali=bayar-beli;

    cout<<endl<<"Uang Kembali : Rp. "<<kembali;

    cout<<endl<<"--------------------------"<<endl;}

    else

    {

     clrscr();cout<<"Maaf, pembelian BENSIN minimal Rp.4500,-"<<endl;

     getch();goto up;

    }

   }

 else if (a=='2')

   {

    clrscr();

    cout<<"         PERTAMAX        "<<endl;

    cout<<"    (Rp.6800,-/liter)    "<<endl;

    cout<<"========================="<<endl;

    cout<<"jumlah beli  : Rp. ";cin>>beli;

    cout<<"uang bayar   : Rp. ";cin>>bayar;

    clrscr();

    cout<<"         PERTAMAX        "<<endl;

    cout<<"=========================";

    liter=beli/6800;

    cout<<endl<<"         "<<liter<<" LITER";

    cout<<endl<<"=========================";

    kembali=bayar-beli;

    cout<<endl<<"Uang Kembali : Rp. "<<kembali;

    cout<<endl<<"-------------------------"<<endl;

   }

 else if (a=='3')

   {

    clrscr();

    cout<<"           SOLAR         "<<endl;

    cout<<"     (Rp.4000,-/liter)   "<<endl;

    cout<<"========================="<<endl;

    cout<<"jumlah beli  : Rp. ";cin>>beli;

    cout<<"uang bayar   : Rp. ";cin>>bayar;

    clrscr();

    cout<<"           SOLAR         "<<endl;

    cout<<"=========================";

    liter=beli/4000;

    cout<<endl<<"         "<<liter<<" LITER";

    cout<<endl<<"=========================";

    kembali=bayar-beli;

    cout<<endl<<"Uang Kembali : Rp. "<<kembali;

    cout<<endl<<"-------------------------"<<endl;

   }

 else

    {clrscr();

    cout<<endl<<"Pilihan SALAH."<<endl;getch();goto down;}

 uang=kembali;

 temp=uang;

 cout<<endl<<"Rincian kembalian = ";

 for(u=0;u<=4;u++)

 {

  jumlah = temp / data[u];

  temp = temp - (data[u]*jumlah);

  printf("\n%d) %li    : %d",u,data[u],jumlah);

 }

 cout<<endl<<"=========================";

 down:

 cout<<endl<<endl<<"ingin mengulangi kembali?\n(y/t) ";cin>>b;

 cout<<endl;

 if(b=='y')

   {clrscr();goto up;}

 else

   {

    goto exit;

   }

 exit:

 }

Ini hasilnya. ::