Algs4-1.5.4给出id[]和sz[]的内容与次数

1.5.4在正文的加权quick-union算法示例中，对于输入的每一对整数(包括对照输入和最坏情况下的输入），给出id[]和sz[]数组的内容以及访问数组的次数。
答：
1）示例：



2）对照输入：





3）最坏输入





4)code:
public class WeightedQuickUnionUF
{
    private int[] id;
    private int[] sz;
    private int count;
    public WeightedQuickUnionUF(int N)
    {
        count=N;
        id=new int[N];
        for (int i=0;i<N;i++)
         {
            id[i]=i;
            StdOut.printf("%3d",i);
         }
         StdOut.println();
        //
        sz=new int[N];
        for (int i=0;i<N;i++)
            sz[i]=1;
        //
    }
   
     public int count()
     {return count;}
    
      boolean connected(int p,int q)
      {return find(p)==find(q);}
    
      public int find(int p)
      {
          while(p!=id[p]) p=id[p];
          return p;
      }
      
    
      public void union(int p,int q)
      {
          int i=find(p);
          int j=find(q);
          StdOut.printf(" i=%d j=%d ",i,j);
          if(i==j) return;
          if(sz[i]<sz[j])
          {
              id[i]=j;
              sz[j]=sz[j]+sz[i];
           }
          else
          {
              id[j]=i;
              sz[i]=sz[i]+sz[j];
          }
          count--;
          //
          for (int k=0;k<id.length;k++)
              StdOut.printf("%3d",id[k]);
          StdOut.printf(" ");
          for (int k=0;k<id.length;k++)
              StdOut.printf("%3d",sz[k]);
          StdOut.printf(" ");
      }
      
       public static void main(String[] qrgs)
       {
           int N=StdIn.readInt();
           WeightedQuickUnionUF uf=new WeightedQuickUnionUF(N);
           while (!StdIn.isEmpty())
           {
               int p=StdIn.readInt();
               int q=StdIn.readInt();
               if(uf.connected(p,q)) continue;
                StdOut.printf("p=%d q=%d",p,q);
               uf.union(p,q);
            }//end while
        }//end main
}//end class