int data; Node left; No
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- In python. Write a LinkedList class that has recursive implementations of the add and remove methods. It should also have recursive implementations of the contains, insert, and reverse methods. The reverse method should not change the data value each node holds - it must rearrange the order of the nodes in the linked list (by changing the next value each node holds). It should have a recursive method named to_plain_list that takes no parameters (unless they have default arguments) and returns a regular Python list that has the same values (from the data attribute of the Node objects), in the same order, as the current state of the linked list. The head data member of the LinkedList class must be private and have a get method defined (named get_head). It should return the first Node in the list (not the value inside it). As in the iterative LinkedList in the exploration, the data members of the Node class don't have to be private. The reason for that is because Node is a trivial class…Python: Written without libraries method find_ansestors , that takes in an index i and returns all ancestors of node located at index i. What is the time complexity of your function? class ArrayBinaryTree: def __init__(self): self._heap = [] def find_ancestors(self, i: int): if(i==0): return;Given Class:- import java.util.*; // Iterator, Comparatorpublic class BinarySearchTree<T> implements BSTInterface<T>{protected BSTNode<T> root; // reference to the root of this BSTprotected Comparator<T> comp; // used for all comparisonsprotected boolean found; // used by removepublic BinarySearchTree() // Precondition: T implements Comparable// Creates an empty BST object - uses the natural order of elements.{root = null;comp = new Comparator<T>(){public int compare(T element1, T element2){return ((Comparable)element1).compareTo(element2);}};}public BinarySearchTree(Comparator<T> comp) // Creates an empty BST object - uses Comparator comp for order// of elements.{root = null;this.comp = comp;}public boolean isFull()// Returns false; this link-based BST is never full.{return false;}public boolean isEmpty()// Returns true if this BST is empty; otherwise, returns false.{return (root == null);}public T min()// If this BST is empty, returns null;//…
- JAVA please Given main() in the ShoppingList class, define an insertAtEnd() method in the ItemNode class that adds an element to the end of a linked list. DO NOT print the dummy head node. Ex. if the input is: 4 Kale Lettuce Carrots Peanuts where 4 is the number of items to be inserted; Kale, Lettuce, Carrots, Peanuts are the names of the items to be added at the end of the list. The output is: Kale Lettuce Carrots Peanuts Code provided in the assignment ItemNode.java:Please fill in the code gaps if possible. This problem has been giving me trouble. Any help is appreciated. public class Node { private String element; // we assume elements are character strings private Node next; /* Creates a node with the given element and next node. */ public Node(String s, Node n) { //fill in body } /* Returns the element of this node. */ public String getElement() { //fill in body } /* Returns the next node of this node. */ public Node getNext() { //fill in body } // Modifier methods: /* Sets the element of this node. */ public void setElement(String newElem) { //fill in body } /* Sets the next node of this node. */ public void setNext(Node newNext) { //fill in body } }Sorting Create a MyLinkedList class with inner Node class, data fields, and the insert(element) method. Implement a toString method to return all nodes in MyLinkedList. Implement a recursive sorting and a non-recursive sorting method.
- JAVA plese Implement the indexOf method in the LinkedIntegerList class public int indexOf(int value); /** * Returns whether the given value exists in the list. * @param value - value to be searched. * @return true if specified value is present in the list, false otherwise. */ } public static void main(String[] args) { // TODO Auto-generated method stub SimpleIntegerListADT myList = null; System.out.println(myList); for(int i=2; i<8; i+=2) { myList.add(i); } System.out.println(myList.indexOf(44));class Queue { private static int front, rear, capacity; private static int queue[]; Queue(int c) { front = rear = 0; capacity = c; queue = new int[capacity]; } static void queueEnqueue(int data) { if (capacity == rear) { System.out.printf("\nQueue is full\n"); return; } else { queue[rear] = data; rear++; } return; } static void queueDequeue() { if (front == rear) { System.out.printf("\nQueue is empty\n"); return; } else { for (int i = 0; i < rear - 1; i++) { queue[i] = queue[i + 1]; } if (rear < capacity) queue[rear] = 0; rear--; } return; } static void queueDisplay() { int i; if (front == rear) { System.out.printf("\nQueue is Empty\n"); return; } for (i = front; i < rear; i++) { System.out.printf(" %d <-- ", queue[i]); } return; } static void queueFront() { if (front == rear) { System.out.printf("\nQueue is Empty\n"); return; } System.out.printf("\nFront Element is: %d", queue[front]);…boɔ ypleð The following code shows how one might implement a binary tree node: public class TreeNode ( public int data; public TreeNode left; public TreeNode right; public TreeNode(int d, TreeNode 1, TreeNode r) { data = d; left - 1; right = r; Suppose we have the following binary tree (with root being the node at the top): 7 The following method is an instance method in the TreeNode class. public int c() { int leftc = 0; if (left != null) { leftc - left.c (); int rightc - 0; if (right != nul1) { rightC = right.c(); return leftc + rightC + 1; Suppose root.c() is called. What is returned? Show memory diagrams and/or stack frames to explain what the recursive calls are.
- I need help with this Java problem to output as it's explained in the image below: public class BST { private Node root; public void insert(int data) { root = insertRec(root, data); } private Node insertRec(Node root, int data) { if (root == null) { root = new Node(data); return root; } if (data < root.data) { root.left = insertRec(root.left, data); } else if (data > root.data) { root.right = insertRec(root.right, data); } return root; } public int getHeight() { return getHeightRec(root); } private int getHeightRec(Node root) { if (root == null) { return 0; } else { int leftHeight = getHeightRec(root.left); int rightHeight = getHeightRec(root.right); return Math.max(leftHeight, rightHeight) + 1; } } public int search(int data) { return searchRec(root, data, 0); }…Starter code for ShoppingList.java import java.util.*;import java.util.LinkedList; public class ShoppingList{ public static void main(String[] args) { Scanner scnr=new Scanner(System.in); LinkedList<ListItem>shoppingList=new LinkedList<ListItem>();//declare LinkedList String item; int i=0,n=0;//declare variables item=scnr.nextLine();//get input from user while(item.equals("-1")!=true)//get inputuntil user not enter -1 { shoppingList.add(new ListItem(item));//add into shoppingList LinkedList n++;//increment n item=scnr.nextLine();//get item from user } for(i=0;i<n;i++) { shoppingList.get(i).printNodeData();//call printNodeData()for each object } }} class ListItem{ String item; //constructor ListItem(String item) { this.item=item; } void printNodeData() { System.out.println(item); }}JavaTimer.java: import java.util.Arrays;import java.util.Random; public class JavaTimer { // Please expand method main() to meet the requirements.// You have the following sorting methods available:// insertionSort(int[] a);// selectionSort(int[] a);// mergeSort(int[] a);// quickSort(int[] a);// The array will be in sorted order after the routines are called!// Be sure to re-randomize the array after each sort.public static void main(String[] args) {// Create and initialize arraysint[] a = {1, 3, 5}, b, c, d;// Check the time to sort array along startTime = System.nanoTime();quickSort(a);long endTime = System.nanoTime();long duration = (endTime - startTime) / 1000l;// Output resultsSystem.out.println("Working on an array of length " + a.length + ".");System.out.println("Quick sort: " + duration + "us.");}// Thanks to https://www.javatpoint.com/insertion-sort-in-javapublic static void insertionSort(int array[]) {int n = array.length;for (int j = 1; j < n; j++) {int key = array[j];int…
