Beli Susu

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

main()
{
    char kode, jenis[50], ukurank[50];
   double harga, jumlah, total, ukuran, bayar, kembali;

   awal:
   cout<<"Input :"<<endl;
   cout<<"------------------------------------------"<<endl;
   cout<<"      TOKO RAJAMILK"<<endl;
   cout<<"------------------------------------------"<<endl<<endl;
   cout<<"Masukan Kode Susu [D/B/S] : ";
    cin>>kode;
   cout<<"Ukuran Susu [1/2/3]       : ";
    cin>>ukuran;
   cout<<"Jumlah yang dibeli        : ";
    cin>>jumlah;

   //Dancow
   if (kode=='D'||kode=='d'){
        strcpy(jenis,"Dancow");
    if(ukuran==1){
        harga=15000;
         strcpy(ukurank,"Kecil");}
      else if(ukuran=2){
        harga=20000;
         strcpy(ukurank,"Sedang");}
      else if (ukuran==3){
        harga=35000;
         strcpy(ukurank,"Besar");}
      else {cout<<"Ukuran Susu salah, tekan enter untuk mengulang";
            getch();
            clrscr();
            goto awal;}}

   //Bendera
   else if(kode=='B'||kode =='b'){
        strcpy(jenis,"Bendera");
        if(ukuran==1){
        harga=13500;
         strcpy(ukurank,"Kecil");}
      else if(ukuran=2){
        harga=17500;
         strcpy(ukurank,"Sedang");}
      else if (ukuran==3){
        harga=25000;
         strcpy(ukurank,"Besar");}
      else {cout<<"Ukuran Susu salah, tekan enter untuk mengulang";
            getch();
            clrscr();
            goto awal;}}

   //SGM
   else if (kode=='S'|| kode=='s'){
        strcpy(jenis,"SGM");
    if(ukuran==1){
        harga=15000;
         strcpy(ukurank,"Kecil");}
      else if(ukuran=2){
        harga=18500;
         strcpy(ukurank,"Sedang");}
      else if (ukuran==3){
        harga=22000;
         strcpy(ukurank,"Besar");}
      else {cout<<"Ukuran Susu salah, tekan enter untuk mengulang";
            getch();
            clrscr();
            goto awal;}}

   //Tidak ada
   else {cout<<"Kode salah, teka enter untuk mengulang";
            getch();
            clrscr();
            goto awal;}
   cout<<endl;
   cout<<"Output    :"<<endl<<endl;
   cout<<"Kode Susu     : "<<kode<<endl;
   cout<<"Jenis Susu        : "<<jenis<<endl;
   cout<<"Ukuran yang dibeli    : "<<ukurank<<endl;
   cout<<"Harga per kaleng  : "<<harga<<endl;
   cout<<"Banyaknya     : "<<jumlah<<" Kaleng"<<endl;
   cout<<"------------------------------------------"<<endl;
   total=jumlah*harga;
   cout<<"Total Bayar       : "<<total<<endl;
    cout<<"Uang Bayar       : ";
    cin>>bayar;
   kembali=bayar-total;
   cout<<"Kembali           : "<<kembali;

   getch();
}