khatri love shrestha

#include <iostream>
#include <stdlib.h>
#include <conio.h>
#include  <graphics.h>

int main()
{

     int gd=DETECT,gm;
     int xc,yc,x,y;
     float p;
     long rx,ry;
     initgraph(&gd,&gm,"..\\bgi");
     cout<<"Enter ellipse center";
     cin>>xc>>yc;
     cout<<"Enter major and minor axis";
     cin>>rx>>ry;
     //calculation for region 1
     p=ry*ry-rx*rx*ry+(rx+rx)/4;
     x=0;
     y=ry;
     while(2.0*ry*ry*x<=2.0*rx*rx*y)
     {

          if(p<0)
          {

              x++;
              p=p+2*ry*ry*x+ry*ry;
          }
          else
          {

               x++;
               y--;
            p=p+2*ry*ry*x-2*rx*ry*y-ry*ry;

          }
          putpixel(xc+x,yc+,RED);
          putpixel(xc+x,yc-y,RED);
          putpixel(xc-x,yc+y,RED);
          putpixel(xc-x,yc-y,RED);


     }
     p=ry*ry*(x+0.5)*(x+0.5)+r*rx*(y-1)*(y-1)-rx*rx*ry*ry;
     while(y>0)
     {

          if(p<=0)
          {

               x++;
               y--;
               p=p+2*ry*ry*x-2*rx*rx*y+rx*rx;

          }
          else
          {
               y--;
               p=p-2*rx*rx*y+rx*rx;


          }
          putpixel(xc+x,yc+y,RED);
          putpixel(xc+x,yc-y,RED);
          putpixel(xc-x,yc+y,RED);
          putpixel(xc-x,yc-y,RED);
     }
     getch();
     closegraph();
     return;


}