Code Segment struct node { int val; struct node *Left; struct node *Right; } }; void tree_walk (struct node *x) { if(x != NULL) { } // value inside your node // left child // right child tree_walk (x->Right) printf("%d ", x->val) tree_walk (x->Left) Perform tree_walk(x) where x is the pointer to the root node. 6. What is the 1st number in the tree-walk sequence? 7. What is the 3rd number in the tree-walk sequence? 8. What is the 5th number in the tree-walk sequence? 9. What is the 7th number in the tree-walk sequence?

Code Segment struct node { int val; struct node Left; struct node Right; } }; void tree_walk (struct node *x) { if(x != NULL) { } // value inside your node // left child // right child tree_walk (x->Right) printf("%d ", x->val) tree_walk (x->Left) Perform tree_walk(x) where x is the pointer to the root node. 6. What is the 1st number in the tree-walk sequence? 7. What is the 3rd number in the tree-walk sequence? 8. What is the 5th number in the tree-walk sequence? 9. What is the 7th number in the tree-walk sequence?

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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1 Assume some Node class with info & link fields. Complete this method in class List that returns a reference to the node containing the data item in the argument find This, Assume that find this is in the list public class List { protected Node head; protected int size; fublic Public Node find (char find This)
class BSTNode { int key; BSTNode left, right; public BSTNode(int item) { key = item; left = right = null; } } class BST_Tree { BSTNode root; BST_Tree() { // Constructor root = null; } boolean search(int key){ return (searchRec(root, key) != null); } public BSTNode searchRec(BSTNode root, int key) { if (root==null || root.key==key) return root; if (root.key > key) return searchRec(root.left, key); return searchRec (root.right, key); } void deleteKey(int key) { root = deleteRec(root, key); } /* A recursive function to insert a new key in BST */ BSTNode deleteRec(BSTNode root, int key) { /* Base Case: If the tree is empty */ if (root == null) return root; /* Otherwise, recur down the tree */ if (key < root.key)…
A)Draw the linked node structure created by the following program and , B)List the output of program. struct node{ struct node *left; char letter; struct node *right; }; typedef struct node *NODEPTR; NODEPTR getnode(void); void displayList(NODEPTR); void main() { NODEPTR p , list , save; char one; p=getnode(); p->letter='A'; list=p; p->right=p; p->left=p; save=list; for(int i=2;i<8;i+=2) { one='A'+ i; p=getnode(); p->letter=one; p->left=save; save->right=p; save=p; printf("Letter= %c\n",p->letter); } list->left=save; save->right=list; list=p; displayList(list); } void displayList(NODEPTR head) {NODEPTR save; printf("\nLIST\n"); save=head; do {printf("%c ",save->letter); save=save->left; }while(save!=head); } NODEPTR getnode() { NODEPTR q; q = (NODEPTR) malloc(sizeof(struct node));…
class BSTNode { int key; BSTNode left, right; public BSTNode(int item) { key = item; left = right = null; } } class BST_Tree { BSTNode root; BST_Tree() { // Constructor root = null; } boolean search(int key){ return (searchRec(root, key) != null); } public BSTNode searchRec(BSTNode root, int key) { if (root==null || root.key==key) return root; if (root.key > key) return searchRec(root.left, key); return searchRec (root.right, key); } void deleteKey(int key) { root = deleteRec(root, key); } /* A recursive function to insert a new key in BST */ BSTNode deleteRec(BSTNode root, int key) { /* Base Case: If the tree is empty */ if (root == null) return root; /* Otherwise, recur down the tree */ if (key < root.key)…
2-) In a double linked list, the structure of a node is defined as follows: struct node { int employeeNo; char name[20]; struct node *next; structnode *prev; }node; the nodes in the list are sorted according to employeeNo in ascending order (from smaller to larger ). Write a function to insert a node with a given name and employeeNo into the list so that the list will remain the sorted. employeeNo değerine göre kiüçükten büyüğe sıralanmış bir çift bağlı liste olsun. Verilen bir isim ve employeeNo değerine sahip düğümü listeye sıra bozulmayacak şekilde ekleyen bir fonksyion yazınız.
1.Assume some Node class with info link fields . Complete this method in class List that returns a reference to the node containing the data item in the argument findThis, Assume that findThis is in the list public class list { protected Node head ; Protected int size ; Public Node find (char find this) { Node curr = head; while(curr != null) { if(curr.info == findThis) return curr; curr = curr.link; } return -1; } }
//Can you explain how this code work or the meaning of this code?#include <iostream>using namespace std;struct Node {int data;struct Node *next;};struct Node* head = NULL;struct Node* rhead = NULL;int count1;//insert at front for reverselistvoid insertfront(int data){Node* new_node = (Node*) malloc(sizeof(Node)); new_node->data = data; new_node->next = rhead; rhead=new_node;}//insert at endvoid insert(int new_data){Node* ptr;ptr = head;Node* new_node = (Node*) malloc(sizeof(Node)); new_node->data = new_data; new_node->next = NULL;if (head == NULL) { head = new_node; } else{while (ptr->next!= NULL) { ptr = ptr->next;}ptr->next=new_node;}count1++;}//display listvoid display() {struct Node* ptr;ptr = head;if(head==NULL){cout<<"Sorry the list is empty";return;}while (ptr != NULL) {cout<< ptr->data <<" ";ptr = ptr->next;}cout<<endl;}//delete datavoid deletedata(int data){Node* ptr,*ptrpre;ptr = head;if (head == NULL) {…
Parking (car Cars[], car Park[], int Area) { Car Cr, int CrNb; CrNb <-- 0; Park <-- { }; Cr <-- Select (Cars) I/ Cr = / if the Cars = {} while (Feasible (Cr)) do { Remove (Cr, Cars); Add (Cr, Park); CrNb <-- CrNb +1; Cr <-- Select (Cars) } if exist-Solution (Park) Then Success else return Error } Trace the above Greedy algorithm with the following data: Area = 1000, Cars [100, 50, 90, 70. 200, 300, 400, 80, 200] the cost for each parked car is 3JD. The objective function is: %3D k Max (ΣCis 1000) K |=1
C programming I need help writing a code that uses a struct pointer into a binary tree and using the same pointer into an array
#ifndef NODES_LLOLL_H#define NODES_LLOLL_H #include <iostream> // for ostream namespace CS3358_SP2023_A5P2{ // child node struct CNode { int data; CNode* link; }; // parent node struct PNode { CNode* data; PNode* link; }; // toolkit functions for LLoLL based on above node definitions void Destroy_cList(CNode*& cListHead); void Destroy_pList(PNode*& pListHead); void ShowAll_DF(PNode* pListHead, std::ostream& outs); void ShowAll_BF(PNode* pListHead, std::ostream& outs);} #endif #include "nodes_LLoLL.h"#include "cnPtrQueue.h"#include <iostream>using namespace std; namespace CS3358_SP2023_A5P2{ // do breadth-first (level) traversal and print data void ShowAll_BF(PNode* pListHead, ostream& outs) { cnPtrQueue queue; CNode* currentNode; queue.push(lloLLPtr->getHead()); while (!queue.empty()) { currentNode = queue.front(); queue.pop(); if…
AVL Tree Implementation program Important note: You must separate your program into three files: header file (*.h), implementation file (*.cpp) and main file (*.cpp). Write a program to build an AVL tree by accepting the integers input from users. For each input, balance the tree and display it on the screen; you then calculate the indorder traversals as well. There should be a menu to drive the program. It should be similar as follows: AVL Tree Implementation A: Insert an integer to tree and show the balanced tree at each insertion. B: Display the balanced tree and show inorder traversal. C: Exit To be sure, your program is correctly working, use the following data to test AVL tree: 15, 18, 10, 7, 57, 6, 13, 12, 9, 65, 19, 16, 23 You should perform more test with different data sets.
using namespace std; class SinglyLinkedListNode { // INSERT YOUR CODE HERE }; class SinglyLinkedList { public: SinglyLinkedListNode *head; SinglyLinkedListNode *tail; SinglyLinkedList() { this->head = nullptr; this->tail = nullptr; } voidinsert_node(intnode_data) { // INSERT YOUR CODE HERE } }; void free_singly_linked_list(SinglyLinkedListNode* node) { // INSERT YOUR CODE HERE } // Complete the has_cycle function below. /* * For your reference: * * SinglyLinkedListNode { * int data; * SinglyLinkedListNode* next; * }; * */ bool has_cycle(SinglyLinkedListNode* head) { SinglyLinkedListNode* temp = head; bool isCycle = false; while (temp != nullptr) { // INSERT YOUR CODE HERE } } int main() { // INSERT YOUR CODE HERE TO TEST YOUR CODE return0; }