import java.awt.*;
import java.applet.*;
public class Column extends Applet{
  public void Columnplot(Graphics g){
    int i,maxit,hit[],leng,oldx,oldh,npoints;
    double r,dist,xx,yy,pp,mini;
    hit=new int[201];
    //printf("Enter the number of iterations(like 100000)\n");
    //scanf("%d",&maxit);
    //printf("you selected %d iterations\n",maxit);
    npoints=200;
    maxit=300000;
    for (i=0;i<=npoints;i++){
      hit[i]=0;
    }
    oldx=50;
    oldh=0;
    for(i=1;i<=maxit;i++){
      r=Math.random();
      leng=(int)(npoints*r);
      xx=(leng-oldx);
      yy=(hit[leng]-oldh);
      dist=Math.sqrt(xx*xx+yy*yy);
      mini=9.0/(dist*dist);
      pp=Math.random();
      if(pp < mini){
        if(leng>1 && leng<npoints){
         if((hit[leng]>=hit[leng-1]) &&(hit[leng]>=hit[leng+1])) hit[leng]+=1;
         else
        hit[leng]=(hit[leng-1]>hit[leng+1])? hit[leng-1]:hit[leng+1];  
      }    
       oldx=leng;
       oldh=hit[leng];      
      //fprintf(fp,"%d %d\n",leng,hit[leng]);
      g.drawLine(2*leng,350-hit[leng],2*leng,350-hit[leng]);
    }
   }
   showStatus("done");
  }
  public void paint(Graphics g)
  {
    Columnplot(g);
  }

}