#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <graphics.h>
void main() {
int    GraphDriver;             /* The Graphics device driver           */
int    GraphMode;               /* The Graphics mode value              */
struct point { int x,y; } p1,p2;
int k,i,m,n,c,f;
float x,y,rad=3.14159/180;

  printf("give me the circle point--->"); scanf("%d %d",&p1.x,&p1.y);
  printf("give me the k --->"); scanf("%d",&k);
  getche();  m=k;
  GraphDriver = DETECT;                 /* Request auto-detection       */
  initgraph( &GraphDriver, &GraphMode, "" ); /* just increasing p1 - p2 */
	c=1; setcolor(c);
	for (i=0; i<=1080; i++) {
	  x=p1.x+m*(i*rad)*cos(i*rad); y=p1.y+m*(i*rad)*sin(i*rad);
	  if (i > 360)  {
	    setcolor(c+1);
	    if ( i > 720) setcolor(c+2);
	  }
	  if (i == 0) moveto(x,y);
	  else lineto(x,y);
	}
  getche(); closegraph(); /* Return the system to text mode       */
}