Tugas if else harga baju dengan C++

#include<iostream.h>
#include<conio.h>
main()
{
int harga,jb,tb,hargappn,bayar,diskon=0,ppn,ht,kembali;
char nj[5],kode[3],uk,ulang;

cout<<"\t\t\tTOKO BAJU GAUL\n";
do {
cout<<"\nA. Jaket Nurul Musthofa"<<endl;
cout<<    "1. Ukuran S   Rp. 50000\n";
cout<<    "2. Ukuran M   Rp. 75000\n";
cout<<    "3. Ukuran L   Rp. 100000\n";
cout<<"\nB. Jaket Majelis Rasulullah Saw"<<endl;
cout<<    "1. Ukuran S   Rp. 75000\n";
cout<<    "2. Ukuran M   Rp. 100000\n";
cout<<    "3. Ukuran L   Rp. 125000\n";
cout<<"\nC. Jaket Zaadul Muslim"<<endl;
cout<<    "1. Ukuran S   Rp. 100000\n";
cout<<    "2. Ukuran M   Rp. 125000\n";
cout<<    "3. Ukuran L   Rp. 150000\n";
cout<<"\n\nNama Kasir                 : ILHAM.R ";
cout<<"\n\nMasukan Kode       [1/2/3] : ";cin>>kode;
cout<<"Ukuran Jaket       [S/M/L] : ";cin>>uk;
 if (strcmp(kode,"1")==0)
    {strcpy(nj,"Nurul Musthofa");
      if (uk=='S'||uk=='s')
         harga= 50000;
      else if(uk=='M'||uk=='m')
             harga = 75000;
      else if(uk=='L'||uk=='l')
             harga = 100000;}
 if (strcmp(kode,"2")==0)
    {strcpy(nj,"Majelis Rasulullah Saw");
     if (uk=='S'||uk=='s')
         harga = 75000;
     else if(uk=='M'||uk=='m')
             harga = 100000;
     else if(uk=='L'||uk=='l')
             harga = 125000;}
 if (strcmp(kode,"3")==0)
    {strcpy(nj,"Zaadul Muslim");
     if (uk=='S'||uk=='s')
         harga = 100000;
     else if(uk=='M'||uk=='m')
             harga = 125000;
     else if(uk=='L'||uk=='l')
             harga = 150000;}
cout<<"Merk Jaket                 : "<<nj<<endl;
cout<<"Harga Satuan               : Rp. "<<harga<<endl;
cout<<"Jumlah Beli                : ";cin>>jb;
ht=harga*jb;
cout<<"\nHarga Total                : Rp. "<<ht<<endl;
ppn=ht*0.1;
cout<<"Pajak                      : Rp. "<<ppn<<endl;
hargappn=ht+ppn;
cout<<"Total Bayar (+ppn)         : Rp. "<<hargappn<<endl;
if (ht>3000000)
   diskon=ht*0.15;
cout<<"Besar potongan             : Rp. "<<diskon<<endl;
tb=hargappn-diskon;
cout<<"\n\nTotal yang harus dibayarkan: Rp. "<<tb<<endl;
cout<<"Uang bayar                 : Rp. ";cin>>bayar;
kembali=bayar-tb;
cout<<"Uang kembali               : Rp. "<<kembali;
cout<<"\n\nIngin Ulangi [Y/N] ? ";cin>>ulang; }
while(ulang=='Y');
return 0;
}