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| unit Unit1;
{$mode objfpc}{$H+}
interface
uses
Classes, SysUtils, Forms, Controls, Graphics, Dialogs, StdCtrls, Spin;
Const
cTabSize = 5; //5 //7
type
TMyArray = array[0..((cTabSize * cTabSize) - 1)] of Integer;
{ TForm1 }
TForm1 = class(TForm)
Memo1 : TMemo;
Memo2 : TMemo;
Button1 : TButton;
Button2 : TButton;
speDecalage : TSpinEdit;
Label1 : TLabel;
Reset : TButton;
procedure FormCreate(Sender : TObject);
procedure FormShow(Sender : TObject);
procedure Button1Click(Sender : TObject);
procedure Button2Click(Sender : TObject);
procedure ResetClick(Sender : TObject);
private
public
AnArray : TMyArray;
procedure CircularShiftLeft(var mat : TMyArray; k : Byte);
procedure CircularShiftRight(var mat : TMyArray; k : Byte);
procedure PrintArray(arr : TMyArray; aMemo : TMemo);
procedure ResetTab;
end;
var
Form1 : TForm1;
implementation
{$R *.lfm}
{ TForm1 }
procedure TForm1.FormCreate(Sender : TObject);
begin
ResetTab;
Memo2.Clear;
Memo1.Clear;
speDecalage.MaxValue := (cTabSize-1) * 4;
end;
procedure TForm1.FormShow(Sender : TObject);
begin
PrintArray(AnArray, Memo1);
end;
procedure TForm1.Button1Click(Sender : TObject);
begin
CircularShiftLeft(AnArray,speDecalage.Value);
PrintArray(AnArray, Memo2);
end;
procedure TForm1.Button2Click(Sender : TObject);
begin
Memo2.Lines.add('================');
CircularShiftRight(AnArray,speDecalage.Value);
PrintArray(AnArray, Memo2);
end;
procedure TForm1.ResetClick(Sender : TObject);
begin
ResetTab;
end;
procedure TForm1.CircularShiftRight(var mat : TMyArray; k : Byte);
Var
Row, Col, M, N, I, J : Integer;
Prev, Curr : Integer;
begin
For j := 0 to k - 1 do
begin
Row := 0;
Col := 0;
M := cTabSize;
N := cTabSize;
While (Row < M) and (Col < N) do
begin
if ( ((row + 1) = m) or ((col + 1) = n)) then break;
Prev := mat[(Row + 1) * cTabSize + Col];
// On déplace la 1ere ligne vers la gauche
For i := Col to (N-1) do
begin
Curr := mat[(Row * cTabSize) + i];
mat[(Row * cTabSize) + i] := Prev;
Prev := Curr;
end;
Inc(Row);
// On déplace la derniere colonne vers le bas
For I := Row to (M-1) do
begin
Curr := mat[(I * cTabSize) + (N-1)];
mat[(I * cTabSize) + (N-1)] := Prev;
Prev := Curr;
end;
Dec(N);
// On déplace la derniere ligne vers la droite
if (Col < N) then
begin
For i := (N-1) downto Col do
begin
Curr := mat[((M-1) * cTabSize) + I];
mat[((M-1) * cTabSize) + i] := Prev;
Prev := Curr;
end;
end;
Dec(M);
// On déplace la 1ere colonne vers le haut
if (Row < M) then
begin
For i := (M-1) downto Row do
begin
Curr := mat[(I * cTabSize) + Col];
mat[(I * cTabSize) + Col] := Prev;
Prev := Curr;
end;
end;
Inc(Col);
end;
end;
end;
procedure TForm1.CircularShiftLeft(var mat : TMyArray; k : Byte);
Var
Row, Col, M, N, I, J : Integer;
Prev, Curr : Integer;
begin
For J := 0 to k-1 do
begin
Row := 0;
Col := 0;
M := cTabSize;
N := cTabSize;
While (Row < M) and (Col < N) do
begin
if ( ((row + 1) = m) or ((col + 1) = n)) then break;
Prev := mat[(Row + 1) * cTabSize + (N-1)];
// On déplace la 1ere ligne vers la droite
For i := (N-1) DownTo Col do
begin
Curr := mat[(Row * cTabSize) + i];
mat[(Row * cTabSize) + i] := Prev;
Prev := Curr;
end;
Inc(Row);
// On déplace la premiere colonne vers le bas
For I := Row to (M-1) do
begin
Curr := mat[(I * cTabSize) + Col];
mat[(I * cTabSize) + Col] := Prev;
Prev := Curr;
end;
Inc(Col);
// On déplace la derniere ligne vers la gauche
if (Col < N) then
begin
For i := Col to (N-1) do
begin
Curr := mat[((M-1) * cTabSize) + I];
mat[((M-1) * cTabSize) + i] := Prev;
Prev := Curr;
end;
end;
Dec(M);
// On déplace la derniere colonne vers le haut
if (Row < M) then
begin
For i := (M-1) downto Row do
begin
Curr := mat[(I * cTabSize) + (N-1)];
mat[(I * cTabSize) + (N-1)] := Prev;
Prev := Curr;
end;
end;
Dec(N);
end;
end;
end;
procedure TForm1.PrintArray(arr : TMyArray; aMemo : TMemo);
var
i, j, m : Integer;
s, n : string;
begin
//aMemo.Clear;
m := cTabSize - 1;
for i := 0 to m do
begin
s := '[';
for j := 0 to m do
begin
n := Inttostr(Arr[i * cTabSize + j]);
if length(n)<2 then n:= '0'+n;
s := s + n;
if j<(cTabSize-1) then s := s + ', ';
end;
s := s + ']';
aMemo.Lines.Add(s);
end;
aMemo.Lines.Add('-----------------------');
end;
procedure TForm1.ResetTab;
Var
i : Integer;
begin
For i := 0 to (cTabSize * cTabSize) - 1 do
begin
AnArray[i] := i+1;
end;
end;
end. |
