Построить гистограмму некоего набора натуральных чисел

//---------------------------------------------------------------------------
 
#include <vcl.h>
#pragma hdrstop
 
#include "Unit1.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
double v[10000], x, y;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
        : TForm(Owner)
{
}
//---------------------------------------------------------------------------
 
void __fastcall TForm1::Button1Click(TObject *Sender)
{ Series1->Clear();
  int n=StrToInt(Edit1->Text);
  for (int j=1; j<=n; j++)
    {
        x=StrToFloat(StringGrid1->Cells[0][j]);
        y=StrToFloat(StringGrid1->Cells[1][j]);
        Series1->Add(y,x,clBlue);
    }
}
 
//---------------------------------------------------------------------------
void __fastcall TForm1::Edit1Change(TObject *Sender)
{ int n=StrToInt(Edit1->Text);
  StringGrid1->RowCount=n+1;
  for (int j=1; j<=n; j++)
    {
      StringGrid1->Cells[0][j]=j;
      }
}
//---------------------------------------------------------------------------

#include <iostream>
#include <algorithm>
using namespace std;
 
int main()
{
const n = 7;
const double MaxPos = 20;
 
int arr[n] = { 1, 2, 0, 4, 7, 6, 7 };
 
double MaxValue = *max_element( arr, arr+n );
 
for( int count=0; count<n; count++ )
  {
  for( int iter=0; iter<arr[count]*MaxPos/MaxValue; iter++ )
    cout << "*";
  cout << endl;
  }
 
cin.ignore();
return 0;
}