#include"graphics.h"
#include"math.h"
float pl=1.05,ps=-1.9,ql=1.3,qs=-1.3,x0,y0,pk,qk,r,p0,q0,p,q;
int H,K=10,k,m=50,Mx=639,My=479,np,nq;
main()
    { int mode,driver;
      driver=DETECT;
      mode=0;
      initgraph(&driver,&mode,"");
      setbkcolor(0);
      p=(pl-ps)/Mx;
      q=(ql-qs)/My;
        { register int np,nq;
         for(np=0;np<=Mx;np++)
         {
          for(nq=0;nq<=My;nq++)
          {  x0=ps+np*p;
             y0=qs+nq*q;
             k=0,p0=q0=0;
         loop1:
             pk=p0*p0-q0*q0+x0;
             qk=2*p0*q0+y0;
             k=k+1;
             r=qk*qk;
             p0=pk,q0=qk;
             if(r>m){
             H=0;goto loop2;}
             if(k==K){
             H=r*10;goto loop2;}
             if(r<=m && k<K) goto loop1;
         loop2:
             putpixel(np,nq,H);
           } 
          }
         }
     }