Suppose the following words were inserted into a compressed alphabet trie, using the symbol $ to represent the end of a word: cat, cats, bat, bats, battery How many nodes would the resulting tree contain? (Enter only a single number as your answer.)
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- Which of the following tree traversals require the use of a queue? (can be multiple) A. Inorder traversal B. Preorder Traversal C. Breadth first search D. Postorder traversalWrite a method isBST() that takes a Node as argument and returns true if the argument node is the root of a binary search tree, false otherwise.Hint : This task is also more difficult than it might seem, because the order in which youcall the methods in the previous three exercises is importantPlease answer the question in the screenshot. Please give a detailed explanation.
- We need a linked list to hold information about penguins in a zoo. You will need the following integers for your IntNode (see below). I have included sample values for one of the penguins: penguin ID: 45821 penguin weight (kg): 11 penguin height (cm): 90 We now need to track the number of penguins in the zoo. I would like to propose a better way to track the size of the list. Rather than traversing the list every time you need to know its size, why not keep a variable called listSize that increments every time you add a node to the list and decrements anytime you remove an item from the list? public class penguinList { //nested class IntNode goes here private IntNode first; private int listSize; //...the methods of penguinList class go here } Now, you just need to increment the listSize instance variable in every method that adds a node to the list. If you have any methods that removes a node from the list, decrement the listSize instance variable in those methods instead.…see the image and answer the 2 questions. ThanksHow many nodes are there in the shortest linkable list? Find the longest one please.