1 #include <graphics.h>
2 #include <conio.h>
3 void k(int x,int y)
4 {int a,b;
5 setcolor(RGB(200,200,200));
6 for(a=x,b=y;a>x-4&&b<y+4;b++,a--)
7 line(x, b, a+40, b);
8 for(a=x,b=y;a<x+4&&b>y-4;a++,b--)
9 line(a, y, a, b+40);
10 setcolor(RGB(55,55,55));
11 for(a=x,b=y;a>x-4&&b<y+4;b++,a--)
12 line(a+40, b, a+40, b+40);
13 for(a=x,b=y;a<x+4&&b>y-4;b--,a++)
14 line(a, b+40, a+40, b+40);
15 }
16 void main()
17 {int i,j;
18 initgraph(640, 640);
19 setbkcolor(RGB(127,127,127));
20 cleardevice();
21 for(i=0;i<=640;i+=40)
22 for(j=0;j<=640;j+=40)
23 k(i,j);
24 getch();
25 closegraph();
26 }
