Moving Car Program in C language

#include <graphics.h>

#include <dos.h>

#include <conio.h> 

 main()

{

   int i, j = 0, gd = DETECT, gm;

    initgraph(&gd,&gm,"C:\\TURBOC3\\BGI");

    settextstyle(DEFAULT_FONT,HORIZ_DIR,2);

   outtextxy(25,240,"Press any key to view the moving car");

    getch();

   setviewport(0,0,639,440,1);

    for( i = 0 ; i <= 420 ; i = i + 10, j++ )

   {

      rectangle(50+i,275,150+i,400);

      rectangle(150+i,350,200+i,400);

      circle(75+i,410,10);

      circle(175+i,410,10);

      setcolor(j);

      delay(100);

      if( i == 420 )

      break;

      clearviewport();

   }

   getch();

   cleardevice();

   settextstyle(SANS_SERIF_FONT,HORIZ_DIR,2);

   delay(5000);

   closegraph();

   return 0;

}