// file bstree.h
 
#ifndef BSTREE_H
#define BSTREE_H
 
#include "tree.h"
 
class BSTree : private Tree{
 public:
 BSTree();
 BSTree(Type x);
 int isempty();
 void insert(Type x);
 int find(Type x);
 int remove(Type x);
 void print();
 private:
  int myfind(Type x, Tnode *&t, Tnode *&q);
 
};
 
#endif