Program in C for rotating circles using maths function

Write a program in C for rotating circles using maths function

#include "stdio.h"

#include "graphics.h"

#include "conio.h"

#include "dos.h"

#include "stdlib.h"

#include "math.h"

#include "iostream.h"

main()

{

            int gd=DETECT,gm,x=295,y=222,a,j,i;

            initgraph(&gd,&gm,"c:\tc\bgi");

            setcolor(14);

            outtextxy(x-10,y,"POP");

            while(!kbhit())

            {

                        i++;

           

                        delay(1);

                        setcolor(16);

                        circle(x+(200*cos(i)),y+(200*sin(i)),8);

                        setcolor(10);

                        circle(x+(200*cos(i+40)),y+(200*sin(i+40)),8);

                        //set2

                        setcolor(16);

                        circle(x+(160*sin(i)),y+(160*cos(i)),7); //anti clockwise:-sin,cos interchanged

                        circle(x+(160*sin(i)),y+(160*cos(i)),5);

                        setcolor(i);

                        circle(x+(160*sin(i+40)),y+(160*cos(i+40)),7);

                        circle(x+(160*sin(i+40)),y+(160*cos(i+40)),5);

           

                        setcolor(16);

                        circle(x+(120*sin(i)),y+(120*cos(i)),6);//anti clockwise:-sin,cos interchanged

                        setcolor(12);

                        circle(x+(120*sin(i+40)),y+(120*cos(i+40)),6);

           

                        setcolor(16);

                        circle(x+(90*cos(i)),y+(90*sin(i)),5);

                        setcolor(i);

                        circle(x+(90*cos(i+40)),y+(90*sin(i+40)),5);

            }

            getch();

            return 0;

}