please write code both in java an python •The left subtree of a node contains only nodes with keys less than the node's key.The right subtree of a node contains only nodes with keys greater than the node's key.Remember, this property should apply to all subtrees as well.Function definition for Java:public boolean isValid BST (TreeNode root) {}Function definition for Python:def isValid BST (self, root):# Your code hereAnnounced Test Cases:Test Case 1:Input:38159Output:TrueExplanation:This is a valid binary tree, so we expect a "True".Test Case 2:Input:28356

The text provides two Java and Python code to verify if the left subtree of a binary tree contains…

Answered: • The left subtree of a node contains…

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

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Haskell Textbook: "Programming in Haskell, 2ndEd.", by Graham Hutton Programming in Haskell: data Tree a b = Leaf a | Branch b (Tree a b) (Tree a b) Implement the three functions that traverse the tree inthe given order collecting the values from the tree nodes into a list:preorder :: (a -> c) -> (b -> c) -> Tree a b -> [c]inorder :: (a -> c) -> (b -> c) -> Tree a b -> [c]postorder :: (a -> c) -> (b -> c) -> Tree a b -> [c] Also, show how each of your three functions work step-by-step with the following tree object.tree1 :: Tree Int Stringtree1 = Branch "+"(Branch "*"(Leaf 3)(Branch "+" (Leaf 4) (Leaf 5)))(Branch "+"(Branch "*" (Leaf 6) (Leaf 7))(Leaf 8))Notice that the data type Tree can store different types of values in the leaves than onthe branching nodes. Thus, each of these functions takes two functions as arguments: Thefirst function maps the values stored in the leaves to some common type c, and the secondfunction maps the values…
Course: Data Structure and Algorithims Language: Java Kindly make the program in 2 hours. Task is well explained. You have to make the proogram properly in Java: Restriction: Prototype cannot be change you have to make program by using given prototype. TAsk: Create a class Node having two data members int data; Node next; Write the parametrized constructor of the class Node which contain one parameter int value assign this value to data and assign next to null Create class LinkList having one data members of type Node. Node head Write the following function in the LinkList class publicvoidinsertAtLast(int data);//this function add node at the end of the list publicvoid insertAthead(int data);//this function add node at the head of the list publicvoid deleteNode(int key);//this function find a node containing "key" and delete it publicvoid printLinkList();//this function print all the values in the Linklist public LinkListmergeList(LinkList l1,LinkList l2);// this function…
Course: Data Structure and Algorithims Language: Java Kindly make the program in 2 hours. Task is well explained. You have to make the proogram properly in Java and attach output screen with program: Restriction: Prototype cannot be change you have to make program by using given prototype. TAsk: classBSTNode { Node left; Node right; int data; publicBSTNode(int _data);// assign data to_data and assign left and right node to null } class BST { BSTNoderoot; public BST();// assign root to null void insert(int data);// this function insert the data in tree which maintain property of BST boolean Search(int key); this function search the data in bst and return true if key is found else return false public void EvenPrint(Node n)// this function only print the data which are even, make this function resursive public void OddPrint(Node n)// this function only print the data which are odd, make this function resursive public void PrimePrint(Node n)// this function only…
please convert to C languange #include<bits/stdc++.h>using namespace std; class tree{ //tree node public: int data; tree *left; tree *right;}; bool hasRootToLeafSum(tree *root, int s){ bool path=false; //declare boolean variable path //base condition checking if(root==NULL && s==0) return true; s-=root->data; //subtract current root value //checking whether leaf node reached and remaining sum =0 if(s==0 && root->left==NULL && root->right==NULL) return true; //recursively done for both subtrees if(root->left){//for left subtree path=path||hasRootToLeafSum(root->left, s); } if(root->right){//for right subtree path=path||hasRootToLeafSum(root->right, s); } return path;} tree* newnode(int data){ //creating new nodes tree* node = (tree*)malloc(sizeof(tree)); node->data = data; node->left = NULL; node->right = NULL;…
Course: Data Structure and Algorithms Language: C++ Question is well explained Question #2Implement a class for Circular Doubly Linked List (with a dummy header node) which stores integers in unsorted order. Your class definitions should look like as shown below: class CDLinkedList;class DNode {friend class CDLinkedList;private int data;private DNode next;private DNode prev;};class CDLinkedList {private:DNode head; // Dummy header nodepublic CDLinkedList(); // Default constructorpublic bool insert (int val); public bool removeSecondLastValue (); public void findMiddleValue(); public void display(); };
5. Assume the following definition for a node of a binary tree. public class Node { public int data; public Node left; public Node right; public Node (int d) { data = d; left = null; right = null; } } (a) Write a recursive function height (Node root) which calculates and returns the height of the binary tree rooted at the given root node. public static int height (Node root) { } (b) Consider the following recursive function: public static void fun (int a, int b, int c) int d - 3 - (b + c); if (a > 1) fun (a-1, ь, d); System.out.println (a + " " + b +" " + c) ; if(a > 1) fun (a-1, d, c); What is the output generated by calling: fun (3, 0, 2)? Answer:
QUESTION: NOTE: This assignment is needed to be done in OOP(c++/java), the assignment is a part of course named data structures and algorithm. A singly linked circular list is a linked list where the last node in the list points to the first node in the list. A circular list does not contain NULL pointers. A good example of an application where circular linked list should be used is a items in the shopping cart In online shopping cart, the system must maintain a list of items and must calculate total bill by adding amount of all the items in the cart, Implement the above scenario using Circular Link List. Do Following: First create a class Item having id, name, price and quantity provide appropriate methods and then Create Cart/List class which holds an items object to represent total items in cart and next pointer Implement the method to add items in the array, remove an item and display all items. Now in the main do the following Insert Items in list Display all items. Traverse…
Write the definitions of the following functions in c++: void binaryTreeType::preorderTraversal() const void binaryTreeType::postorderTraversal() const int binaryTreeType::treeNodeCount() const void binaryTreeType::preorder(nodeType* p) const void binaryTreeType::postorder(nodeType* p) const int binaryTreeType::nodeCount(nodeType* p) const int binaryTreeType::leavsCount(nodeType* p) const bool bSearch TreeType::search(const Type & searchltem) void bSearchTreeType::deleteNode(const Type & deleteltem) void bSearchTreeType::deleteFromTree(nodeType*& p) 3.
Read this: Complete the code in Visual Studio using C++ Programming Language - Give me the answer in Visual Studio so I can copy*** - Separate the files such as .cpp, .h, or .main if any! Develop a C++ "doubly" linked list class of your own that can hold a series of signed shorts Develop the following functionality: Develop a linked list node struct/class You can use it as a subclass like in the book (Class contained inside a class) You can use it as its own separate class Your choice Maintain a private pointer to a node class pointer (head) Constructor Initialize head pointer to null Destructor Make sure to properly delete every node in your linked list push_front(value) Insert the value at the front of the linked list pop_front() Remove the node at the front of the linked list If empty, this is a no operation operator << Display the contents of the linked list just like you would print a character string operator [] Treat like…
PROGRAMMING LANGUAGE: C++ // vectors: overloading operators example#include <iostream>using namespace std;class counter{private:int count;public:counter():count(0){}counter(int c):count(c) {} int get_count(){return count;} counter operator++ (int){return counter(count++); } counter operator-- (int){return counter(count--);}};int main(){counter c1, c2, c3;c1++;c2--;cout<<'\n'<<c1.get_count();cout<<'\n'<<c2.get_count();cout<<endl;c3 = c1++;cout<<'\n'<<c1.get_count();cout<<'\n'<<c3.get_count();getch();return 0;} Go through the above code and write the output of the given code segment. counter c1(5), c2(10), c3;c3=c1++;c2=--c3;;cout<<”\n”<<c1.get_count();cout<<”\n”<<c2.get_count();cout<<”\n”<<c3.get_count();
C++ PROGRAMMINGTopic: HashTable - PolyHash Quadratic Explain the c++ code below.: SEE ATTACHED PHOTO FOR THE PROBLEM INSTRUCTIONS It doesn't have to be long, as long as you explain what the important parts of the code do. (The code is already implemented and correct, only the explanation needed). You can also explain line by line for an upvote, thanks. EXPLAIN THE CODE BELOW: #include <cstdlib> #include <math.h> #include <cstring> #include <iostream> using namespace std; class HashTable { string* table; int N; int count; // TODO: Polynomial Hash Code using a=7 int hash_code(string key) { int code; int hash = 0; for (int i = 0; i < key.size(); i++) { char ch = key[i]; code += ((ch - 96) * pow(7, key.size() - (i + 1))); } return code; } // TODO: This hash table uses a MAD compression function // where a = 11, b = 461, p = 919 int compress(int code) { return (((11*code)+461) % 919) % N; }…
write in c++ Define the 3 bolded functions for the following DynIntStack (linked list): class DynIntStack {private: struct Node { int value; // Value in the node Node *next; // Pointer to the next node }; Node *top; // Pointer to the stack toppublic: DynIntStack() { head = nullptr; } void push(int); //assume this is already defined void removeTop(); // removes the top element without returning it int topValue(); // returns the top element without removing it bool isEmpty() { return head == nullptr; } bool isFull() { return false; } void pushMany(int values[], int n); //add n values from the array}; Hints: void removeTop() (hint 3 lines of code) int topValue() (hint 1 line of code) void pushMany(int values[], int n) (hint 2 lines of code, use a for loop, call another function)

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