tAltnus Objettyprivate Node head;private Node current;public LinkList () {head = current = null; }public boolean empty () {return head- null; }What does the following code do?public Node remove() {if(empty())return nul1;Node temp,cc = head;while(c.next != null)temp = c;cNext; }temp.next =null;size--;return c;O a. Remove the First element in the listO b. Remove the last element in the listO C. Remove the second element in the listo d. Remove the element before the last element in the list public class Node extends Object {public T data;public Node next;public Node () {data = null; next = null; }public Node (T val) {data = val; next = null; }}public class LinkListextends Object {private Node head;private Node current;public LinkList (){head = current = null; }public boolean empty () {return head == null; }What does the fpllowing code do?public Node remove() {if (empty())return null;Node temp,c;c = head;while(c.next != null)temp = c;c = c.Next; }temp.next = null;size--;return c;

Here we have a function named remove(). In this function, we have created 2 objects of type Node.…

tAltnus vojetty private Node head; private Node current; public LinkList () { head null:} public boolean empty () { return head == null; } = current = What does the following code do? public Node remove() { if (empty()) return null; Node temp,c; c = head; while (c.next != null) temp = c; Next; } C = temp.next = null; size--; return c; a. Remove the First element in the list O b. Remove the last element in the list O C. Remove the second element in the list O d. Remove the element before the last element in the list

tAltnus vojetty private Node head; private Node current; public LinkList () { head null:} public boolean empty () { return head == null; } = current = What does the following code do? public Node remove() { if (empty()) return null; Node temp,c; c = head; while (c.next != null) temp = c; Next; } C = temp.next = null; size--; return c; a. Remove the First element in the list O b. Remove the last element in the list O C. Remove the second element in the list O d. Remove the element before the last element in the list

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

See similar textbooks

Similar questions

how to fix the error in the remove function (c++) struct LinkedList {public:LinkedList () : head_(0) {};~LinkedList () { delete_nodes (); }; // returns 0 on success,-1 on failureint insert (const int &new_item) {return ((head_ = new Node(new_item, head_)) != 0) ? 0 : -1; }// returns 0 on success, -1 on failureint remove (const int &item_to_remove) {Node *marker = head_;Node *temp = 0; // temp points to one behind as we iteratewhile (marker != 0) {if (marker->value() == item_to_remove) {if (temp == 0) { // marker is the first element in the listif (marker->next() == 0) {head_ = 0;delete marker; // marker is the only element in the listmarker = 0;} else {head_ = new Node(marker->value(), marker->next());delete marker;marker = marker->next(); }return 0;} else {temp->next (marker->next());delete temp;temp = 0;return 0; } }// marker = 0; // reset the markertemp = marker;marker = marker->next(); }return -1; // failure }void print (void) {Node *marker =…
Assume the following method is within the SingleLinkedList class. What does it do? public void unknownMethod () { Node pt head; E temp; while (pt != null && pt.next != null) { temp pt.data; = pt.data pt.next.data; pt.next.data= temp; pt pt.next; } }
What does mystryMethod ( ) do? void mystryMethod (Node n, int vall, int val2) { if (n.data vall){ == Node node new Node (val2); node.next = n.next; n.next node; return; } mystryMethod(n.next, vall,val2); }
Implement Stack and Queue using LinkList class and compare the performance between StackArray,QueueArray and StackLinkList and QueueLinkList : class LinkList{ private Node first; // ref to first item on list public Node getFirst() // get value of first { return first; } public void setFirst(Node f) // set first to new link { first = f; } public LinkList() // constructor { first = null; } // no items on list yet public boolean isEmpty() // true if list is empty { return (first==null); } public void insertFirst(int dd) { // insert at start of list Node newLink = new Node(dd); // make new link newLink.next = first; // newLink --> old first first = newLink; //…
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)…
Queue q= new LinkedQueue (8); q.enqueue ("A"); q.enqueue ("B"); q.enqueue ("C"); q.enqueue ("D"); q.enqueue ("E"); q.enqueue ("F"); Stack s= new LinkedStack (8); for (int i=0; i<3; i++) { s.push (q.de queue () ); After all of this code executes, the size of the queue g is -----and the size of the stack is ------ 1, 5 3, 3 4. 2 5, 1
bool DelOddCopEven(Node* headPtr) { if (headPtr == nullptr) { return false; } Node* prev = nullptr; Node* current = headPtr; while (current != nullptr) { if (current->data % 2 != 0) { // Odd-valued node, delete it if (prev != nullptr) { prev->link = current->link; } else { headPtr = current->link; } Node* temp = current; current = current->link; delete temp; } else { // Even-valued node, create a copy and insert it after the original node Node* newNode = new Node; newNode->data = current->data; newNode->link = current->link; current->link = newNode; // Update the previous and current pointers prev = newNode; current = newNode->link; } } return true;} int FindListLength(Node* headPtr){ int length = 0;…
Question 5 what does the following method do? private void reOrder (Node node) { if (node == null) return; else { reOrder (node.left); reorder (node.right); System.out.print (node.data + " "); } } (A) getLeft Subtree B) postOrder Traverse c) inOrder Traverse preorder Traverse
in C++, create a binary search tree class using the class templatr below. class BinarySearchTree{ public:BinarySearchTree(); ~BinarySearchTree(); const int & findMin() const; const int & findMax() const; bool contains(cons tint &x) const; bool isEmpty(); void insert(const int &x); void remove(const int &x); private: struct BinaryNode{ int element; BinaryNode *left; BinaryNode *right; BinaryNode(const int &el, BinaryNode *lt, BinaryNode *rt) :element(el), left(lt), right(rt){} }; BinaryNode *root; void insert(const int &x, BinaryNode *&t) const; void remove(const int &x, BinaryNode *&t) const; BinaryNode * findMin(BinaryNode *t) const; BinaryNode * findMax(BinaryNode *t) const; bool contains(cons tint &x, BinaryNode *t) const; };
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)…
Question 3 public E unknown() { Node pt1,pt2; if (head != null) { pt1=head; pt2= getNode(size-1); if (pt1.data.equals(pt2.data)) return getNode(size/2).data; else return pt1.data; } A It returns half of the data of the last node in the list or the data of the first node B It returns half of the data of the last node in the list or the data of the last node in the list C It returns the data of the middle node in the list or the data of the first node It returns the data of the middle node in the list or the data of the last node in the list
Node* temp=new node(); if(temp==0) return 0; return 1; we can use this to check if the linked queue is full or not Select one: True False