STARTING OUT WITH C++ MPL
9th Edition
ISBN: 9780136673989
Author: GADDIS
Publisher: PEARSON
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Chapter 19, Problem 5PC
Program Plan Intro
Tree Width
Program Plan:
- Define a class BTreeNode to create nodes for binary search tree items.
- Include all the required header files.
- Initialize a value to the node, and set the left child of node to leftp and right child of node to rightp .
- Define a class to create a Binary Search Tree.
- Create a function int width that returns width of the tree.
- Create a function bool search to search a particular item in tree.
- Create a function leafCounter that counts no. of leaves present in a level.
- Create function void insert to insert nodes into the tree.
- Create a function void inorder to sort items in inorder traversal.
- Declare the main function.
- Prompt the user to enter 5 numbers to be inserted into tree.
- Sort the items present in the tree in inorder traversal and return the width of the Binary Search Tree.
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C++ binary trees pointers recursion
Write a function named hasPath that interacts with a tree of BinaryTreeNode structures representing an unordered binary tree. The function accepts three parameters: a pointer to the root of the tree, and two integers start and end, and returns true if a path can be found in the tree from start down to end. In other words, both start and end must be element data values that are found in the tree, and end must be below start, in one of start's subtrees; otherwise the function returns false. If start and end are the same, you are simply checking whether a single node exists in the tree with that data value. If the tree is empty, your function should return false.
For example, suppose a BinaryTreeNode pointer named tree points to the root of a tree storing the following elements. The table below shows the results of several various calls to your function:
67
88
52
1
21
16
99
45
Call
Result
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hasPath(tree,
67, 99)
true
path exists…
Tree Traversal Coding: How do I code the following in C program?
// ====== BEGIN INSERT FUNCTION DEFS TO WALK TREE =========
// define 3 functions - preorder, inorder, postorder to walk tree, printing out data (char)
// associated with each node visited:
void preorder (node* np) {}
void inorder (node* np) {}
void postorder (node* np) {}
walk.c file with the rest of the code given.
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <string.h>
#define MAX_STRING 200
// ========================== NODE/TREE DEFINITIONS ==========================
// define node structure
typedef struct nd {
int data;
struct nd* left;
struct nd* right;
} node;
// "new" function to create a node, set data value to d and children to NULL
node* newNode(int d) {
node* np;
np = (node*)malloc(sizeof(node));
if (np != NULL) {
np->data = d;
np->left = NULL;
np->right = NULL;
}
return(np);
}
// declare root of our binary tree…
C++ PROGRAMMINGBinary Search Trees
SEE ATTACHED PHOTO FOR THE PROBLEM INSTRUCTIONS It doesn't have to be long, as long as you explain what the important parts of the code do. (The code is already implemented and correct, only the explanation needed)
#include "node.h"
#include <iostream>
using namespace std;
class BSTree {
node* root;
int size;
node* create_node(int num, node* parent) {
node* n = (node*) malloc( sizeof(node) );
n->element = num;
n->parent = parent;
n->right = NULL;
n->left = NULL;
return n;
}
bool search(node* curr, int num) {
if (curr == NULL) {
return false;
}
if (num == curr->element) {
return true;
}
if (num < curr->element) {
return search(curr->left, num);
}
return search(curr->right, num);
}
node* search_node(node* curr, int num) {
if (num ==…
Chapter 19 Solutions
STARTING OUT WITH C++ MPL
Ch. 19.1 - Prob. 19.1CPCh. 19.1 - Prob. 19.2CPCh. 19.1 - Prob. 19.3CPCh. 19.1 - Prob. 19.4CPCh. 19.1 - Prob. 19.5CPCh. 19.1 - Prob. 19.6CPCh. 19.2 - Prob. 19.7CPCh. 19.2 - Prob. 19.8CPCh. 19.2 - Prob. 19.9CPCh. 19.2 - Prob. 19.10CP
Ch. 19.2 - Prob. 19.11CPCh. 19.2 - Prob. 19.12CPCh. 19 - Prob. 1RQECh. 19 - Prob. 2RQECh. 19 - Prob. 3RQECh. 19 - Prob. 4RQECh. 19 - Prob. 5RQECh. 19 - Prob. 6RQECh. 19 - Prob. 7RQECh. 19 - Prob. 8RQECh. 19 - Prob. 9RQECh. 19 - Prob. 10RQECh. 19 - Prob. 11RQECh. 19 - Prob. 12RQECh. 19 - Prob. 13RQECh. 19 - Prob. 14RQECh. 19 - Prob. 15RQECh. 19 - Prob. 16RQECh. 19 - Prob. 17RQECh. 19 - Prob. 18RQECh. 19 - Prob. 19RQECh. 19 - Prob. 20RQECh. 19 - Prob. 1PCCh. 19 - Prob. 2PCCh. 19 - Prob. 3PCCh. 19 - Prob. 4PCCh. 19 - Prob. 5PCCh. 19 - Prob. 6PCCh. 19 - Prob. 7PCCh. 19 - Prob. 8PCCh. 19 - Prob. 9PCCh. 19 - Prob. 10PC
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