Python code:   ############################## class Node:     def __init__(self,value):         self.left = None         self.right = None         self.val = value ############################### class BinarySearchTree:     def __init__(self):         self.root = None def print_tree(node):      if node == None:         return     print_tree(node.left)     print_tree(node.right)      print(node.val) ################################################# # Task 1: get_nodes_in_range function #################################################   def get_nodes_in_range(node,min,max):      #      # your code goes here      #      pass # fix this if __name__ == '__main__':     BST = BinarySearchTree()     BST.root = Node(10)     BST.root.left = Node(5)     BST.root.right = Node(15)     BST.root.left.left = Node(2)     BST.root.left.right = Node(8)     BST.root.right.left = Node(12)     BST.root.right.right = Node(20)     BST.root.right.right.right = Node(25)       print(get_nodes_in_range(BST.root, 6, 20))

import java.util.Scanner; public class Inventory {   public static void main (String[] args) {      Scanner scnr = new Scanner(System.in);             InventoryNode headNode;                                                    InventoryNode currNode;      InventoryNode lastNode;       String item;      int numberOfItems;      int i;       // Front of nodes list                                                                               headNode = new InventoryNode();      lastNode = headNode;       int input = scnr.nextInt();       for(i = 0; i < input; i++ ) {         item = scnr.next();         numberOfItems = scnr.nextInt();         currNode = new InventoryNode(item, numberOfItems);         currNode.insertAtFront(headNode, currNode);         lastNode = currNode;      }       // Print linked list                                                                         currNode = headNode.getNext();      while (currNode != null) {         currNode.printNodeData();         currNode…

Java programming language I have to create a remove method that removes the element at an index (ind) or space in an array and returns it. Thanks!   I have to write the remove method in the code below. i attached the part where i need to write it. public class ourArrayList<T>{ private Node<T> Head = null; private Node<T> Tail = null; private int size = 0; //default constructor public ourArrayList() { Head = Tail = null; size = 0; } public int size() { return size; } public boolean isEmpty() { return (size == 0); } //implement the method add, that adds to the back of the list public void add(T e) { //HW TODO and TEST //create a node and assign e to the data of that node. Node<T> N = new Node<T>();//N.mData is null and N.next is null as well N.setsData(e);   //chain the new node to the list   //check if the list is empty, then deal with the special case if(this.isEmpty()) { //head and tail refer to N this.Head = this.Tail = N; size++; //return we are done.…

JAVA programming language

Draw a UML class diagram for the following code: class Node:    def __init__(self, value):        self.value = value        self.next = None class Stack:    def __init__(self):        self.top = None     def isEmpty(self):        return self.top is None     def push(self, item):        new_node = Node(item)        new_node.next = self.top        self.top = new_node     def pop(self):        if self.isEmpty():            raise Exception("Stack is empty")        popped_item = self.top.value        self.top = self.top.next        return popped_item     def popAll(self):        items = []        while not self.isEmpty():            items.append(self.pop())        return items[::-1]     def peek(self):        if self.isEmpty():            raise Exception("Stack is empty")        return self.top.value # Verificationstack = Stack()print("Is stack empty?", stack.isEmpty()) stack.push(10)stack.push(20)stack.push(30)print("Top item:", stack.peek()) print("Popped item:", stack.pop())print("Popped…

/**  * TODO: file header  */   import java.util.*;   public class BSTManual {   /**  * TODO  * @author TODO  * @since  TODO  */   // No style for this file.   public static ArrayList<String>  insertElements() {   ArrayList<String> answer_pr1 = new ArrayList<>(11);   /* * make sure you add your answers in the following format: *  * answer_pr1.add("1"); --> level 1 (root level) of the output BST * answer_pr1.add("2, X"); --> level 2 of the output BST * answer_pr1.add("3, X, X, X"); --> level 3 of the output BST  *  * the above example is the same as the second pictoral example on your * worksheet */   //TODO: add strings that represent the BST after insertion.  return answer_pr1;   }   public static ArrayList<String>  deleteElements() {   ArrayList<String> answer_pr2 = new ArrayList<>(11);   /* * Please refer to the example in insertElements() if you lose track * of how to properly enter your answers */   //TODO: add strings that represent the…

The C++ Vertex class represents a vertex in a graph. The class's only data member is _____ Ⓒlabel 1000 O weight O framEdges O toEdges Question 36 The C++ Graph class's fromEdges member is a(n) _________ O string Ⓒdouble O vector O unordered_map Question 37 The C++ Graph class's AddVertex() function's return type is _____ void O Edge+ Overtex) O vector

Run the program to tell me there is an error, BSTChecker.java:3: error: duplicate class: Node class Node { ^ BSTChecker.java:63: error: class LabProgram is public, should be declared in a file named LabProgram.java public class LabProgram { ^ 2 errors This is my program, please fix it.     import java.util.*; class Node { int key; Node left, right; public Node(int key) { this.key = key; left = right = null; } } class BSTChecker { public static Node checkBSTValidity(Node root) { return checkBSTValidityHelper(root, null, null); } private static Node checkBSTValidityHelper(Node node, Integer min, Integer max) { if (node == null) { return null; } if ((min != null && node.key <= min) || (max != null && node.key >= max)) { return node; } Node leftResult = checkBSTValidityHelper(node.left, min, node.key); if (leftResult != null) { return leftResult; } Node rightResult = checkBSTValidityHelper(node.right, node.key, max); if (rightResult != null) { return rightResult; }…

Interval Difference: Please help me with this assertion error

Computer science  JAVA programming question i need help with this entire question please