rs_tree.h

A Library of Efficient Data Types and Algorithms,封装了常用的ADT及其相关算法的软件包

/*******************************************************************************
+
+  LEDA 4.5  
+
+
+  rs_tree.h
+
+
+  Copyright (c) 1995-2004
+  by Algorithmic Solutions Software GmbH
+  All rights reserved.
+ 
*******************************************************************************/

// $Revision: 1.3 $  $Date: 2004/02/06 11:19:19 $

#ifndef LEDA_RS_TREE_H
#define LEDA_RS_TREE_H

//------------------------------------------------------------------------------
//
// rs_tree:  
//
//           randomized search trees (derived from class "bin_tree")
//
// Stefan N"aher (1993)
//
//------------------------------------------------------------------------------


#include <LEDA/basic.h>
#include <LEDA/impl/bin_tree.h>

LEDA_BEGIN_NAMESPACE

 
typedef bin_tree_node* rs_tree_item;

 
//-----------------------------------------------------------------
// class rs_tree
//-----------------------------------------------------------------

class __exportC rs_tree : public bin_tree
{ 
  int         tree_type() const { return LEDA_RS_TREE; }
  const char* tree_name() const { return "Randomized Tree"; }

  int root_balance() { return rand_int.get(); }
  int node_balance() { return rand_int.get(); }
  int leaf_balance() { return 0; }

  void insert_rebal(rs_tree_item);
  void del_rebal(rs_tree_item, rs_tree_item);


public:

 rs_tree() {}
~rs_tree() {}
 rs_tree(const rs_tree& T) : bin_tree(T) {}
 rs_tree& operator=(const rs_tree& T) { bin_tree::operator=(T); return *this; }

};

LEDA_END_NAMESPACE

#endif