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- Create a class called ResizingArrayQueueOfStrings that implements the queue abstraction using a fixed-size array. Then, as an extension, utilise array resizing in your implementation to get rid of the size constraint.In Javascript an array can be treated like a queue---a FIFO (first-in, first-out) data structure. Which two array operations that we studied in class can be used together to treat an array as a queue? a. isEmpty() and isFull() b. queue() and unqueue() c. unshift() and pop() d. push() and pop() e. unshift() and shift()implement a double ended queue using java with the following API: deque() isempty() size() addfirst() addlast() removefirst() removelast() iterator and a main method.
- An array of size MAX_SIZE is used to implement a queue. head, tail, and size are tracked. Suppose front is 0 and rear is MAX_SIZE -1. How many elements are present in the queue? a. 0 b. MAX_SIZE-1 c. MAX_SIZE d. 11 Implement a nested class DoubleNode for building doubly-linked lists, where each node contains a reference to the item preceding it and the item following it in the list (null if there is no such item). Then implement static methods for the following tasks: insert at the beginning, insert at the end, remove from the beginning, remove from the end, insert before a given node, insert after a given node, and remove a given node.Execute a program that will split a circularly linked list P with n nodes intotwo circularly linked lists P1, P2 with the first n/2 and the last n – n/2 nodes ofthe list P in them.
- Starting with an empty Circul Queue, what will be the state of Circular Queue, front, rare, size and number of elements after each of the following operations performed in the order ( i ) enque(A) (ii) enque (B) (iii) enque (C) (iv) dequeue( ) (v) dequeue( ) (vi) enque(D) (vii) enque(E ) (viii) dequeue( )Develop a class ResizingArrayQueueOfStrings that implements the queueabstraction with a fixed-size array, and then extend your implementation to use arrayresizing to remove the size restriction.Implement a simple linked list in Python (Write source code and show output) with basic linked list operations like: (a) create a sequence of nodes and construct a linear linked list. (b) insert a new node in the linked list. (b) delete a particular node in the linked list. (c) modify the linear linked list into a circular linked list. Use this template: class Node:def __init__(self, val=None):self.val = valself.next = Noneclass LinkedList:"""TODO: Remove the "pass" statements and implement each methodAdd any methods if necessaryDON'T use a builtin list to keep all your nodes."""def __init__(self):self.head = None # The head of your list, don't change its name. It shouldbe "None" when the list is empty.def append(self, num): # append num to the tail of the listpassdef insert(self, index, num): # insert num into the given indexpassdef delete(self, index): # remove the node at the given index and return the deleted value as an integerpassdef circularize(self): # Make your list circular.…
- Heap is used to implement the priorityqueue. Revise the implementation using a sorted array list to store the elementsand name the new class PriorityUsingSortedArrayList. The elements inthe array list are sorted in increasing order of their priority with the last elementhaving the highest priority. Write a test program that generates 5 million integersand enqueues them to the priority and dequeues from the queue. Use the samenumbers for MyPriorityQueue and PriorityUsingSortedArrayList anddisplay their execution times.Implement a method concatenate in class LinkedQueue. This method should take all the elements of a queue sourceQ and append them to the end of another queue targetQ. The operation should result in sourceQ being an empty queue. Test this method in the main method of LinkedQueue. package queues;public class LinkedQueue<E> implements Queue<E> { private SinglyLinkedList<E> list = new SinglyLinkedList<>(); // an empty list public LinkedQueue() { } // new queue relies on the initially empty list @Override public int size() { return list.size(); } @Override public boolean isEmpty() { return list.isEmpty(); } @Override public void enqueue(E element) { list.addLast(element); } @Override public E first() { return list.first(); } @Override public E dequeue() { return list.removeFirst(); } public String toString() { return list.toString(); }}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; //…