Given a singly linked has the following values in its nodes when traversed from head to tail (11, 7, 2, 10, 5}, If this list represents a stack called s, what is the info of the node pointed to by head pointer after executing the following sequence of operations: s.top(), s.push(10), s.pop(), s.top() Select one: О а. 10 O b. 11 Oc. 7 O d. 2 Clear my choice

Given a singly linked has the following values in its nodes when traversed from head to tail (11, 7, 2, 10, 5}, If this list represents a stack called s, what is the info of the node pointed to by head pointer after executing the following sequence of operations: s.top(), s.push(10), s.pop(), s.top() Select one: О а. 10 O b. 11 Oc. 7 O d. 2 Clear my choice

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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Assuming dequeue() and pop() print the values removed, what is printed by: queue q // queue of int q.enque(5) q.deque() // print q.enqueue(18) q.enque(2) q.deque() // print q.deque() // print stack s // stack of int s.push(3) s.pop() // print s.push(6) s.push(5) s.pop() // print s.pop() s.push(7) s.pop() // print ANSWER: ANSWER:
There is one stacks and one queue q and then following operations are performed upon these two. Push A, enqueue B, push C, pop, pop, enqueue D, push E, dequeue, enqueue F .What is the total number of elements, which are left in the queue and stack in the end.
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Assume that stack and queue are MyStack and MyQueue objects, respectively. WhT are the contents of stack and queue after the execution of the following code fragment.
The ADT stack lets you peek at its top entry without removing it. For some applications of stacks, you also need to peek at the entry beneath the top entry without removing it. We will call such an operation peek2. If the stack has more than one entry, peek2 returns the second entry from the top without altering the stack. If the stack has fewer than two entries, peek2 throws an exception. Write a linked implementation of a stack class call First_Last_LinkStack.java that includes a method peek2
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The insert function first checks if the list is empty then head is updated, if the list is not empty then a new node is inserted at the tail. The delete function deletes the given node (temp). This temp node can be anywhere in the list. Your task is to update the insert and delete function code so that it implements the stack rule. i-e last in first out. The insert function should only allow insertion at head and the delete function should only pop the last inserted element (no parameter to be passed to the delete function). #include <iostream> using namespace std; class Node{ public: int data; Node *next; }; class List{ public: Node *head; List(){ head = NULL; } void insert(int data){ Node *nn = new Node; nn->next = NULL; nn->data = data; if(head==NULL){ head = nn; cout<<"Node inserted successfully at head"<<endl; } else{ Node *temp…
data МАТH data ENGL null next next top top data MATH next null The above is a stack of textbooks. The top is a node to record the address of the top element of a stack. 2. Which of the following statement push the ENGL textbook to the top? top.next = new Node("ENGL", top); a. b. top = new Node("ENGL", top) Describe the reason of your choice. Your answer is (a or b) Will the push action take time in 0(1) or 0(n)? Next Page O Type here to search
Assume a linked list contains following integers: 5, 2, 4, 6, 8, 3, 15 and the pointer head is pointing to the first node of the list. What will be the value of variable a after the following statements are executed: Node<int> *curNode=head; int a=0; while(curNode!=NULL){ a+=curNode->getItem(); curNode=curNode->getNext(); if(curNode!=NULL) curNode=curNode->getNext(); } A.32 B.43 C.19 D.18
Let a stack of N=5 elements be denoted as: S={3,7,9,2,_}What would the stack look like after the following operations?pop( )pop( )push(11)push(3)pop( )pop( )pop( ) Select one: a.S={3,7,3,11,_} b.S={3,7,11,3,_} c.S={3,_,_,_,_} d.S={11,_,_,_,_} e.S={3,7,11,_,_}
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Need help with python code. Write a LikedStack . Test it by: Add numbers from 7 to 22 in the stack. Print the length of the stack Check if the stack is empty Show the item on the top of the stack Remove the last item in the stack Add 45 to the stack Remove all items in the stack Check if the stack is empty """File: linkedstack.pyAuthor: Ken Lambert"""from node import Nodefrom abstractstack import AbstractStackclass LinkedStack(AbstractStack):"""A link-based stack implementation."""# Constructordef __init__(self, sourceCollection = None):"""Sets the initial state of self, which includes thecontents of sourceCollection, if it's present."""# Accessor methodsdef __iter__(self):"""Supports iteration over a view of self.Visits items from bottom to top of stack."""def visitNodes(node):"""Adds items to tempList from tail to head."""def peek(self):"""Returns the item at the top of the stack.Precondition: the stack is not empty.Raises: KeyError if the stack is empty."""if self.isEmpty():#…