1. #include<conio.h>
#include<stdio.h>
#include<iostream.h>
main()
{
char nama_kasir[20],kode_susu,nota,merk_susu[20],lagi;
int
kode_kasir,no_transaksi,jumlah_beli,harga,jumlah_harga,uang_bayar,uang_kembali;
float diskon,totyar;
mulai:
clrscr();
cout<<"Toko susu bayin";
cout<<"Milk countern";
cout<<"============================n";
cout<<"no transaksi:"; cin>>no_transaksi;
clrscr();
if (kode_kasir=='01')
{strcpy(nama_kasir,"mira");}
else if (kode_kasir=='02')
{strcpy(nama_kasir,"doni");}
else if (kode_kasir=='03')
{strcpy(nama_kasir,"bayu");}
cout<<"kode kasir:"; cin>>kode_kasir;
cout<<"============================n";
cout<<"pilih kode susu N/L/B:n"; cin>>kode_susu;
clrscr();
if (kode_susu=='n' || kode_susu=='N')
{strcpy(merk_susu,"nutrilon baby");
harga=125000;}
else if (kode_susu=='l' || kode_susu=='L')
{strcpy(merk_susu,"lactogen baby");
harga=105000;}
else if (kode_susu=='b' || kode_susu=='B')
{strcpy(merk_susu,"morinaga bmt");
harga=130000;}
else
{strcpy(merk_susu,"kode salah");
harga=0;}
cout<<"jumlah beli:"; cin>>jumlah_beli;
cout<<"n";
cout<<"================================n";
cout<<"kode kasir:"; cin>>kode_kasir;
cout<<"============================n";
cout<<"nota:"<<nota<<endl;
cout<<"nama kasir:"<<nama_kasir<<endl;
cout<<"merk susu:"<<merk_susu<<endl;
cout<<"harga:"<<harga<<endl;
cout<<"jumlah beli:"<<jumlah_beli<<endl;
cout<<"============================n";
jumlah_harga=harga*jumlah_beli;
cout<<"jumlah harga:"<<jumlah_harga<<endl;
diskon=(0.5*jumlah_harga);
cout<<"diskon:"<<diskon<<endl;
cout<<"============================n";
totyar=jumlah_harga-diskon;
cout<<"total bayar:"<<totyar<<endl;
cout<<"uang bayar:"<<uang_bayar<<endl;
uang_kembali=uang_bayar-totyar;
cout<<"uang kembali:"<<uang_kembali<<endl;
cout<<"mau input lagi Y/T:";cin>>lagi;

2. if (lagi=='Y'||lagi=='y')
goto mulai;
else
cout<<"terima kasih atas kunjungan anda";
getch();
}