program C++ for calcculate you'r costumer buy

you want mange your time for calculate costumer buy,,,,????
i have program for you,,,this is free because i want too help you friend.....
if you want you can get the syntax bellow:

//Nama : rendi pratama
//Kelas : 1A
//NIM : 101511025
//POLBAN
#include<iostream>
#include<conio.h>
using namespace std;
int main()
{
    struct pembelian
    {
      char nama[15];
      int barang[4],total[6],bayar[6];
    };
    pembelian pbl[6];
    int i,j,harga[5];
    //input
    i=1;
    while(i<=4)
    {
       cout<<"Harga barang Jenis"<<i<<":";
       cin>>harga[i]; 
       i=i+1;     
    }
    i=1;
    while(i<=5)
    {
       cout<<"Pembeli ke"<<i<<"\n";
       cout<<"Nama : ";
       cin>>pbl[i].nama;
       j=1;
       while(j<=4)
       {
         cout<<"Banyak Barang jenis "<<j<<" :";
         cin>>pbl[i].barang[j];
         j=j+1;        
       }
       i=i+1;       
    }
    //proses
    i=1;
    while(i<=5)
    {
      pbl[i].total[i]=0;
      j=1;
      while(j<=4)
      {
        pbl[i].total[i]=pbl[i].total[i]+pbl[i].barang[j];
        j=j+1;        
      }
      i=i+1;
    }
    cout<<"\n\n";
    i=1;
    while(i<=5)
    {
      pbl[i].bayar[i]=0;
      j=1;
      while(j<=4)
      {
        pbl[i].bayar[i]=pbl[i].bayar[i]+(harga[j]*pbl[i].barang[j]);
        j=j+1;        
      }
      i=i+1;
    }
    //Output
    i=1;
    while(i<=5)
    {
       cout<<"Pembeli ke"<<i<<"\n\n";
       cout<<"Nama                                         : "<<pbl[i].nama<<"\n\n";
       cout<<"Banyak Barang yang Dibeli Pembeli ke-"<<i<<" : "<<pbl[i].total[i]<<"\n\n";
       cout<<"Uang yang Harus Dikeluarkan                  : "<<pbl[i].bayar[i]<<"\n\n";
       i=i+1;       
    }
    getch();
}