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| unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls, ExtCtrls;
type
TForm1 = class(TForm)
Memo1: TMemo;
Panel1: TPanel;
Button1: TButton;
procedure Button1Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
procedure TForm1.Button1Click(Sender: TObject);
var mas:array[-1..10,-1..10] of -1..64;
x,y,n:byte;
i,j:integer;
num:longint;
s:string;
function step(x,y,n:byte):boolean;
begin
inc(num);
{if num mod 1000000=0 then
begin
Memo1.Lines.Add(IntToStr(num));
Application.ProcessMessages;
end; }
Result:=false;
if n=64 then
begin
if mas[x+1,y-2]=0 then
begin
mas[x+1,y-2]:=n;
Result:=true;
end;
if mas[x+2,y-1]=0 then
begin
mas[x+2,y-1]:=n;
Result:=true;
end;
if mas[x+2,y+1]=0 then
begin
mas[x+2,y+1]:=n;
Result:=true;
end;
if mas[x+1,y+2]=0 then
begin
mas[x+1,y+2]:=n;
Result:=true;
end;
if mas[x-1,y+2]=0 then
begin
mas[x-1,y+2]:=n;
Result:=true;
end;
if mas[x-2,y+1]=0 then
begin
mas[x-2,y+1]:=n;
Result:=true;
end;
if mas[x-2,y-1]=0 then
begin
mas[x-2,y-1]:=n;
Result:=true;
end;
if mas[x-1,y-2]=0 then
begin
mas[x-1,y-2]:=n;
Result:=true;
end;
end
else
begin
if mas[x+1,y-2]=0 then
begin
mas[x+1,y-2]:=n;
if step(x+1,y-2,n+1) then
begin
Result:=true;
exit;
end
else
mas[x+1,y-2]:=0;
end;
if mas[x+2,y-1]=0 then
begin
mas[x+2,y-1]:=n;
if step(x+2,y-1,n+1) then
begin
Result:=true;
exit;
end
else
mas[x+2,y-1]:=0;
end;
if mas[x+2,y+1]=0 then
begin
mas[x+2,y+1]:=n;
if step(x+2,y+1,n+1) then
begin
Result:=true;
exit;
end
else
mas[x+2,y+1]:=0;
end;
if mas[x+1,y+2]=0 then
begin
mas[x+1,y+2]:=n;
if step(x+1,y+2,n+1) then
begin
Result:=true;
exit;
end
else
mas[x+1,y+2]:=0;
end;
if mas[x-1,y+2]=0 then
begin
mas[x-1,y+2]:=n;
if step(x-1,y+2,n+1) then
begin
Result:=true;
exit;
end
else
mas[x-1,y+2]:=0;
end;
if mas[x-2,y+1]=0 then
begin
mas[x-2,y+1]:=n;
if step(x-2,y+1,n+1) then
begin
Result:=true;
exit;
end
else
mas[x-2,y+1]:=0;
end;
if mas[x-2,y-1]=0 then
begin
mas[x-2,y-1]:=n;
if step(x-2,y-1,n+1) then
begin
Result:=true;
exit;
end
else
mas[x-2,y-1]:=0;
end;
if mas[x-1,y-2]=0 then
begin
mas[x-1,y-2]:=n;
if step(x-1,y-2,n+1) then
begin
Result:=true;
exit;
end
else
mas[x-1,y-2]:=0;
end;
end;
end;
begin
for i:=-1 to 10 do
for j:=-1 to 10 do
if (i>=1)and(i<=8)and(j>=1)and(j<=8) then mas[i,j]:=0
else mas[i,j]:=-1;
mas[1,1]:=1;
num:=0;
if step(1,1,2) then Memo1.Lines.Add('Есть путь')
else Memo1.Lines.Add('Нет пути');
Memo1.Lines.Add(IntToStr(num));
for i:=1 to 8 do
begin
s:='';
for j:=1 to 8 do
s:=s+' '+inttostr(mas[i,j]);
Memo1.Lines.Add(s);
end;
end;
end. |
(
