N Elemanlı Bir Kümenin R Elemanlı Alt Kümelerinin Gösterimi

//---------------------------------------------------------------------------
 
#include <vcl.h>
#pragma hdrstop
 
#include "Unit1.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
        : TForm(Owner)
{
}
//---------------------------------------------------------------------------
 
 
 
void __fastcall TForm1::Button1Click(TObject *Sender)
{
ListBox1->Items->Add(Edit1->Text);
Edit1->Text="";
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button2Click(TObject *Sender)
{
ListBox2->Items->Clear();
ListBox3->Items->Clear();
ListBox4->Items->Clear();
String of=InputBox("GİRİş","Bulmak İstediğiniz Alt Kümelere Ait Eleman Sayısını Giriniz","");
int altkume=StrToInt(of);
Application->MessageBox("Öncelikli Olarak Aynı Elemanların Eleminasyonu Kontrolü","UYARI",MB_ICONINFORMATION);
for(int i=0;i<ListBox1->Items->Count;i++)
{
  for(int j=i+1;j<ListBox1->Items->Count;j++)
    {
    if(ListBox1->Items->Strings[i]==ListBox1->Items->Strings[j])
    ListBox1->Items->Delete(j);
    }
}
 
for(int i=0;i<ListBox1->Items->Count;i++)
 {
 for(int j=i+1;j<ListBox1->Items->Count;j++)
  {
  String olustur=ListBox1->Items->Strings[i]+","+ListBox1->Items->Strings[j];
   ListBox3->Items->Add(olustur);
   }
   }
if(altkume==1)
{
for(int bir=0;bir<ListBox1->Items->Count;bir++)
ListBox2->Items->Add(ListBox1->Items->Strings[bir]);
}
else if(altkume==2)
{
for(int bir=0;bir<ListBox3->Items->Count;bir++)
ListBox2->Items->Add(ListBox3->Items->Strings[bir]);
}
else if(altkume>2)
{
for(int dolan=0;dolan<altkume-2;dolan++)
{
 
for(int i=0;i<ListBox3->Items->Count;i++)
 {
 String tut=ListBox3->Items->Strings[i];
 String virgul=",";
 while(tut.Length()>0)
 {
 int pos=tut.Pos(virgul);
 String copy=tut;
 String listesalla=tut.Delete(pos,tut.Length());
 ListBox5->Items->Add(listesalla);
 tut=copy.Delete(1,pos);
 pos=tut.Pos(virgul);
 if(pos<1)
 {
 ListBox5->Items->Add(tut);
 break;
 }
 }//while sonu
  for(int j=i+1;j<ListBox3->Items->Count;j++)
   {
        String tut=ListBox3->Items->Strings[j];
        String virgul=",";
         while(tut.Length()>0)
        {
        int pos=tut.Pos(virgul);
        String copy=tut;
        String listesalla=tut.Delete(pos,tut.Length());
        int gontrol=0;
        for(int g=0;g<ListBox6->Items->Count;g++)
        {
        if(listesalla==ListBox6->Items->Strings[g])
        gontrol=1;
        }
        if(gontrol==0)
        ListBox6->Items->Add(listesalla);
         tut=copy.Delete(1,pos);
         pos=tut.Pos(virgul);
 if(pos<1)
 {
  int pontrol=0;
        for(int g=0;g<ListBox6->Items->Count;g++)
        {
        if(tut==ListBox6->Items->Strings[g])
        pontrol=1;
        }
 if(pontrol==0)
 ListBox6->Items->Add(tut);
 break;
 }
 }
  }   // icteki for sonu
 for(int k=0;k<ListBox6->Items->Count;k++)       // x foru
  {
  
  int kontrol=0;
   for(int l=0;l<ListBox5->Items->Count;l++)
    {
       if(ListBox6->Items->Strings[k]==ListBox5->Items->Strings[l])
       kontrol=1;
     }
     String uret="";
   int saydir;
   int konum;
   for(int m=0;m<ListBox4->Items->Count;m++)
   {
   saydir=0;
   for(int n=0;n<ListBox5->Items->Count;n++)
   {
   konum=ListBox4->Items->Strings[m].Pos(ListBox5->Items->Strings[n]);
   if(konum>0)
   saydir++;
   }
   konum=ListBox4->Items->Strings[m].Pos(ListBox6->Items->Strings[k]);
   if(konum>0)
   saydir++;
   if(saydir==ListBox5->Items->Count+1)
   kontrol=1;
   }
   if(kontrol==0)
   {
 
    for(int z=0;z<ListBox5->Items->Count;z++)
    {
      uret+=ListBox5->Items->Strings[z];
      uret+=",";
    }
      uret+=ListBox6->Items->Strings[k];
  ListBox4->Items->Add(uret);
 
   }//if sonu
 
 
  } // x foru sonu
 
 
 
 ListBox5->Items->Clear();
  ListBox6->Items->Clear();
} //son for
 
ListBox3->Items->Clear();
 
for(int donelim=0;donelim<ListBox4->Items->Count;donelim++)
{
ListBox3->Items->Add(ListBox4->Items->Strings[donelim]);
}
ListBox4->Items->Clear();
ListBox2->Items->Clear();
for(int bitir=0;bitir<ListBox3->Items->Count;bitir++)
{
ListBox2->Items->Add(ListBox3->Items->Strings[bitir]);
}
}
}//else if
 
Label2->Caption="Girilen Elemanlara Ait "+IntToStr(altkume)+" Elamanlı Alt Kümeler";
Label3->Caption=IntToStr(ListBox2->Items->Count)+".Adet";
 
 
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Edit1KeyPress(TObject *Sender, char &Key)
{
if((Key<'0'||Key>'9')&&(Key!=VK_BACK))
Key=0;
        
}
//---------------------------------------------------------------------------