Please use the linked approach implement the BST ADT, implement all the functions in the BSTree.cpp. Please use C++ programming

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#include "BSTree.h"

template BSTree::BSTreeNode::BSTreeNode ( const DataType &nodeDataItem, BSTreeNode *leftPtr, BSTreeNode *rightPtr ) { }

template < typename DataType, class KeyType > BSTree::BSTree () { root = 0; }

template < typename DataType, class KeyType > BSTree::BSTree ( const BSTree& other ) { }

template < typename DataType, class KeyType > void BSTree:: copyTree(const BSTree &otherTree) { copyTreeHelper(root, otherTree.root); }

template < typename DataType, class KeyType > void BSTree:: copyTreeHelper(BSTreeNode *&p, const BSTreeNode *otherPtr) { if (p != 0) { p = new BSTreeNode(otherPtr->dataItem, 0, 0); copyTreeHelper(p->left, otherPtr->left); copyTreeHelper(p->right, otherPtr->right); } }

template < typename DataType, class KeyType > BSTree& BSTree:: operator= ( const BSTree& other ) {

}

template < typename DataType, class KeyType > BSTree::~BSTree () {

}

template < typename DataType, class KeyType > void BSTree::insert ( const DataType& newDataItem ) {

}

template < typename DataType, class KeyType > bool BSTree::retrieve ( const KeyType& searchKey, DataType& searchDataItem ) const { return false; }

template < typename DataType, class KeyType > bool BSTree::remove ( const KeyType& deleteKey ) { return false; }

template < typename DataType, class KeyType > bool BSTree::removeHelper(BSTreeNode *&p, const KeyType& deleteKey) {

}

template < typename DataType, class KeyType > void BSTree::writeKeys () const {

}

template < typename DataType, class KeyType > void BSTree::writeLTHelper(BSTreeNode *p, const KeyType& searchKey) const {

}

template < typename DataType, class KeyType > void BSTree::clear () {

}

template < typename DataType, class KeyType > void BSTree::clearHelper(BSTreeNode *p) {

}

template < typename DataType, class KeyType > bool BSTree::isEmpty () const { return false; }

template < typename DataType, class KeyType > int BSTree::getHeight () const { return -1; }

template < typename DataType, class KeyType > int BSTree::getHeightHelper(BSTreeNode *p) const {

}

template < typename DataType, class KeyType > int BSTree::getCount () const { return -1; }

template < typename DataType, class KeyType > int BSTree::getCountHelper(BSTreeNode *p) const {

}

template < typename DataType, class KeyType > void BSTree::writeLessThan ( const KeyType& searchKey ) const { }

#include "show9.cpp"

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Class declarations for the linked implementation of the Binary // Search Tree ADT -- including the recursive helpers of the // public member functions // //--------------------------------------------------------------------

#ifndef BSTREE_H #define BSTREE_H

#include #include

using namespace std;

template < typename DataType, class KeyType > // DataType : tree data item class BSTree // KeyType : key field { public:

// Constructor BSTree(); // Default constructor BSTree(const BSTree& other); // Copy constructor BSTree& operator= (const BSTree& other); // Overloaded assignment operator

// Destructor ~BSTree();

// Binary search tree manipulation operations void insert(const DataType& newDataItem); // Insert data item bool retrieve(const KeyType& searchKey, DataType& searchDataItem) const; // Retrieve data item bool remove(const KeyType& deleteKey); // Remove data item void writeKeys() const; // Output keys void clear(); // Clear tree

// Binary search tree status operations bool isEmpty() const; // Tree is empty // !! isFull() has been retired. Not very useful in a linked structure.

// Output the tree structure -- used in testing/debugging void showStructure() const;

// In-lab operations int getHeight() const; // Height of tree int getCount() const; // Number of nodes in tree void writeLessThan(const KeyType& searchKey) const; // Output keys < searchKey

protected:

class BSTreeNode // Inner class: facilitator for the BSTree class { public:

// Constructor BSTreeNode(const DataType &nodeDataItem, BSTreeNode *leftPtr, BSTreeNode *rightPtr);

// Data members DataType dataItem; // Binary search tree data item BSTreeNode *left, // Pointer to the left child *right; // Pointer to the right child };

// Recursive helpers for the public member functions -- insert // prototypes of these functions here. void insertHelper(BSTreeNode *&p, const DataType &newDataItem); bool retrieveHelper(BSTreeNode *p, const KeyType& searchKey, DataType &searchDataItem) const; bool removeHelper(BSTreeNode *&p, const KeyType& deleteKey); // cutRightmose used in one implementation of remove. void cutRightmost(BSTreeNode *&r, BSTreeNode *&delPtr); void writeKeysHelper(BSTreeNode *p) const; void clearHelper(BSTreeNode *p); void showHelper(BSTreeNode *p, int level) const; int getHeightHelper(BSTreeNode *p) const; int getCountHelper(BSTreeNode *p) const; void writeLTHelper(BSTreeNode *p, const KeyType& searchKey) const; void copyTree(const BSTree &otherTree); void copyTreeHelper(BSTreeNode *&p, const BSTreeNode *otherPtr);

// Data member BSTreeNode *root; // Pointer to the root node };

#endif // define BSTREE_H