4 Patterns in CG

#include<iostream.h>
#include<conio.h>
#include<graphics.h>
void main()
{
 int gd=DETECT,gm,x,y,i,j;
 initgraph(&gd,&gm,"C:\\TurboC3\\BGI");
 x=getmaxx()/2;y=getmaxy()/2;
 settextstyle(3,0,2);
 for(i=0;i<=625;i=i+10)
 {
  outtextxy(x,10+i,"|");
  outtextxy(10+i,y,"-");
 }
 setcolor(YELLOW);
 for(i=0;i<=(x-20);i=i+20)
 {
 for(j=0;j<=(y-20);j=j+20)
 {
 outtextxy(20+i,20+j,"*");
 outtextxy(x+20+i,20+j,"@");
 outtextxy(20+i,y+20+j,"&");
 outtextxy(x+20+i,y+20+j,"#");
 }
 }
 getch();
 closegraph();
}