Exercise21_04.cpp - #include #include...

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#include <iostream> #include <string> #include "GenericStack.h" #include "LinkedList.h" using namespace std; #ifndef BINARYTREE_H #define BINARYTREE_H template < typename T > class TreeNode { public: T element; // Element contained in the node TreeNode < T > * left; // Pointer to the left child TreeNode < T > * right; // Pointer to the right child TreeNode() // No-arg constructor { left = NULL; next = NULL; } TreeNode(T element) // Constructor { this->element = element; left = NULL; right = NULL; } }; template < typename T > class BinaryTree { public: BinaryTree(); BinaryTree(T elements[], int arraySize); bool insert(T element); void inorder(); void preorder(); void postorder(); int getSize(); bool search(T element); void breadthFirstTraversal(); int depth(); private: TreeNode < T > * root; int size; void inorder(TreeNode < T > * root); void postorder(TreeNode < T > * root); void preorder(TreeNode < T > * root); bool search(T element, TreeNode < T > * root); int depth(TreeNode<T> * root); }; template < typename T > BinaryTree < T >::BinaryTree() { root = NULL; size = 0; } template < typename T >
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BinaryTree < T >::BinaryTree(T elements[], int arraySize) { root = NULL; size = 0;
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