HEAD/TAIL PROGRAM IN C LANGUAGE

#include <graphics.h>
#include <stdlib.h>
#include <stdio.h>
#include <conio.h>
#include <dos.h>

int main(void)
{
   /* request auto detection */
   int gdriver = DETECT, gmode, errorcode;
   int midx, midy;
   int stangle = 0, endangle = 360;
   int xradius , yradius = 60;

   /* initialize graphics, local variables */
   initgraph(&gdriver, &gmode, "f:\\tc\\bgi");

   /* read result of initialization */
   errorcode = graphresult();
   if (errorcode != grOk)
   /* an error occurred */
   {
      printf("Graphics error: %s\n", grapherrormsg(errorcode));
      printf("Press any key to halt:");
      getch();
      exit(1);
   /* terminate with an error code */
   }

   midx = getmaxx() / 2;
   midy = getmaxy() / 2;
   setcolor(getmaxcolor());

   int k=1;   //for head and tail//
   int b=0;   //for tail loop//


   settextstyle(2,0,0);
   /* draw ellipse */

   while(!kbhit())
   {


for(int a=60;a>=0;a=a-1)
{
cleardevice();

xradius=a;


if(a==0)
{

k=k+1;
for(b=a;b<=60;b++)
{
  cleardevice();
  xradius=b;


if(k%2==0)
{
outtextxy(midx-10,midy-90,"TAIL");
setfillstyle(4,1);
}

else
{
outtextxy(midx-10,midy-90,"HEAD");
setfillstyle(5,3);
}

if(b>0 && b<57)
{
int xradius1=b-3;
fillellipse(midx,midy,xradius1+1, yradius);

fillellipse(midx,midy,xradius1+2, yradius);

fillellipse(midx,midy,xradius1+3, yradius);
}

  outtextxy(10,5,"PROGRAM:TO SHOW THE ROTATION OF A COIN");

  fillellipse(midx,midy,xradius, yradius);
  delay(25);
}

}

   if(a<57 && a>0)
   {
int xradius1=a+3;
fillellipse(midx,midy,xradius1-1, yradius);

fillellipse(midx,midy,xradius1-2, yradius);

fillellipse(midx,midy,xradius1-3, yradius);
   }

if (k%2==0)
{
outtextxy(midx-10,midy-90,"TAIL");
setfillstyle(4,1);
}

else
{
outtextxy(midx-10,midy-90,"HEAD");
setfillstyle(5,3);
}

outtextxy(10,5,"PROGRAM:TO SHOW THE ROTATION OF A COIN");

fillellipse(midx,midy,xradius, yradius);

delay(25);

   }
   }

   /* clean up */

   getch();
   closegraph();
   return 0;
}

REGARD NABEEL