Using graphics in C

/* using graphics */
#include
#include
main()
{
int gd=DETECT,gm,midx,midy;
initgraph(&gd,&gm,"d:\\cpp\\bgi");
midx=getmaxx()/2;
midy=getmaxy()/2;
/* print in the middle on the screen */
circle(midx,midy,10);
getch();

}