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unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls;

type
  TForm1 = class(TForm)
    BuNeueZahlen: TButton;
    ListBox: TListBox;
    EdM: TEdit;
    EdN: TEdit;
    Label1: TLabel;
    Label2: TLabel;
    Label3: TLabel;
    Label4: TLabel;
    Label5: TLabel;
    BuMax: TButton;
    EdPos: TEdit;
    EdMax: TEdit;
    Label6: TLabel;
    Label7: TLabel;
    procedure BuNeueZahlenClick(Sender: TObject);
    procedure FormCreate(Sender: TObject);
    procedure BuMaxClick(Sender: TObject);
  private
    { Private-Deklarationen }
    a: array of Integer;
    n: Integer;
  public
    { Public-Deklarationen }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.BuNeueZahlenClick(Sender: TObject);
var m, r, i: Integer;
begin
  m := StrToInt(EdM.Text);
  n := StrToInt(EdN.Text);
  setlength (a, n + 1); { a array[0..n] }
  ListBox.Clear;
  for i := 1 to n do
  begin
    r := Random(m) + 1;
    a[i] := r;
    ListBox.Items.Add(IntToStr(r));
  end;
end;

procedure TForm1.FormCreate(Sender: TObject);
begin
  Randomize;
end;

procedure TForm1.BuMaxClick(Sender: TObject);
var pos, i: Integer;
begin
  pos := 1;
  for i := 2 to n do
    if a[i] > a[pos] then pos := i;
  EdPos.Text := IntToStr (pos);
  EdMax.Text := IntToStr (a[pos]);
  ListBox.ItemIndex := pos - 1;
end;

end.

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setlength (a, n + 1); { a array[0..n] }

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 a[i] := r;

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if a[i] > a[pos] then pos := i;