Программа

#include <graphics.h>
main()
{
  int driver,mode,errorcode;
  driver=DETECT;
  initgraph(&driver,&mode,"");
  errorcode=graphresult();
  if(errorcode!=grOk)
  { printf("Ошибка: %s\nНажмите клавишу",grapherrormsg(errorcode));
    getch();
    exit(1);
  }
  circle(100,100,130);
  getch();
  closegraph();
}