QUESTION 18 Given empty Queue customerNums, what are the queue's elements after the following code block is executed? customerNums.add(5); customerNums.add(2); customerNums.add(6): customerNums.remove(): customerNums.remove(): O a. [5] O b. [6] OC [2.6] Od. [5, 2]

QUESTION 18 Given empty Queue customerNums, what are the queue's elements after the following code block is executed? customerNums.add(5); customerNums.add(2); customerNums.add(6): customerNums.remove(): customerNums.remove(): O a. [5] O b. [6] OC [2.6] Od. [5, 2]

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

Attached
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
If front=2 and rear=5, how many elements are there in an array-based queue (note: rear is pointing at the next free location) O 3 4 2 5
Anybody??
Assume a linked list contains following integers: 2, 2, 4, 5, 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; Node<int> *aNode; while(curNode->getItem()<7){ aNode=curNode; curNode=curNode->getNext(); } a=aNode->getItem(); A. 5 B.8 C.0 D.7
5. What is the output of the following program segment? linkedQueueType queue; queue.addQueue (10); queue.addQueue (20); cout tempQueue; tempQueue = queue; while (!tempQueue.isEmptyQueue ()) cout << tempQueue.frcnt () << " "; tempQueue. deleteQueue (); cout << endl; cout << queue.front () << " " << queue.back() '<< endl; 6 Supnose thiat queue is a queueTyne ohiect and the size of the array im
Java: Which of the following operations has the least running time in a Queue (assume that only Queue interface operations are available; some operations may require use of an additional temporary queue)? Multiple choice. Deleting the element at the rear of the queue Checking if an element x is present in the queue Finding the number of elements in the queue all of the above have identical worst case running time
DONT use any of the list methods (append, pop etc.). class mycircularqueue(): def __init__(self, m = 10): self.maxsize = m self.array = [None]*m self.FRONT = self.REAR = -1 def enqueue(self, item): # Inserts item at the rear of a non full queue and returns True. If unable to insert the item returns false ####################################################################### # Remove the pass statement and write your code ####################################################################### pass def dequeue(self): # Removes the item from the front of the queue and returns it. For unsuccessful dequeue return False ####################################################################### # Remove the pass statement and write your code ####################################################################### pass def peek(self): # Returns the…
Which of the following data structures cannot have an iterator implemented to iterate through? Group of answer choices 1. Hash Map 2. You can implement an iterator for all of these. 3. Linked List 4. Array 5. Binary Search Tree