Rectangle and Square

//Program to Draw Rectangle and square
#include<stdio.h>
#include<conio.h>
#include<graphics.h>
void main()
{
 int gd=DETECT,gm,midx,midy;
 initgraph(&gd,&gm,"C:\\TurboC3\\BGI");
 midx=getmaxx()/2; midy=getmaxy()/2;
 setcolor(GREEN);
 rectangle(midx-200,midy-100,midx+200,midy+100);
 setcolor(YELLOW);
 rectangle(midx-50,midy-50,midx+50,midy+50);
 getch();
 closegraph();
}