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To manage search keys that are not unique, a new property called search key was created. In what ways may this affect the height of the B+ tree?
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- TRUE OR FALSE In order to use static methods in Collections, we must create a Collection object using a new operator.Implement LeafNode and InteriorNode classes for the expression tree as discussed on this page Use this template: Please don't change any function namesAdd any methods if necesssaryTODO: Remove the pass statements and implement the methods. '''class LeafNode:def __init__(self, data):self.data = datadef postfix(self):return str(self)def __str__(self):return str(self.data)def prefix(self):passdef infix(self):passdef value(self):return self.dataclass InteriorNode:def __init__(self, op, left_op, right_op):self.op = opself.left_op = left_opself.right_op = right_opdef postfix(self):return self.left_op.postfix() + " " + self.right_op.postfix() + " " + self.opdef prefix(self):passdef infix(self):passdef value(self):passif __name__ == "__main__":# TODO: (Optional) your test code here.a = LeafNode(4)b = InteriorNode('+', LeafNode(2), LeafNode(3))c = InteriorNode('*', a, b)c = InteriorNode('-', c, b)True/False 6. Polymorphism literally means "many changes."
- Coding language: C++. (Try to avoid linked lists if possible please). Add comments. Thanks. • Each functionality component must be implemented as a separate function, though the function does not need to be declared and defined separately • No global variables are allowed • No separate.hor.hpp are allowed • You may not use any of the hash tables, or hashing functions provided by the STL or Boost library to implement your hash table • Appropriate, informative messages must be provided for prompts and outputs You must implement a hash table using the Double Hashing collision strategy and the mid-square base 10 hashing function with an R of 2. Your collision strategy must be implemented as a separate function, though it may be implemented inside your insert/search/delete functions, and should halt an insert / search/delete functions, and should halt an insert/search/delete after table size number of collisions. Your hash function must be implemented as a separate function. Your hash table…card_t * moveCardBack (card t *head); The moveCardBack function will take the card in front of the pile and place it in the back. In coding terms, you are taking the head of the linked list and moving it to the end. The function has one parameter which is the head of the linked list. After moving the card to the back, the function returns the new head of the linked list.The Set<T> API has the following methods: void add(T) boolean contains(T) boolean remove(T) The most space efficient implementation of a SET API is:
- Which of the following code segments can be used as a constructor for a node in a linked list. Each node contains a pointer to the next node called next and also has a String called data. O public node () { next = 0; } } public node () { next = "";} } O public node () { next = null; } } O public node () { next = new node(); }1. Goals and Overview The goal of this assignment is to practice creating a hash table. This assignment also has an alternative, described in Section 5. A hash table stores values into a table (meaning an array) at a position determined by a hash function. 2. Hash Function and Values Every Java object has a method int hashCode() which returns an int suitable for use in a hash table. Most classes use the hashCode method they inherit from object, but classes such as string define their own hashCode method, overriding the one in object. For this assignments, your hash table stores values of type public class HashKeyValue { K key; V value; } 3. Hash Table using Chained Hashing Create a hash table class (called HashTable211.java) satisfying the following interface: public interface HashInterface { void add(K key, V value); // always succeeds as long as there is enough memory V find (K key); // returns null if there is no such key } Internally, your hash table is defined as a private…Problem You want to implement a custom class that mimics the behavior of a common built-in container type, such as a list or dictionary. However, you're not entirely sure what methods need to be implemented to do it.
- Add the following method in the BST class that returns aniterator for traversing the elements in a BST in preorder./** Return an iterator for traversing the elements in preorder */java.util.Iterator<E> preorderIterator()II. Project Description Parts Catalog This project builds a parts catalog using a B-tree for storage. Introduction: Today a parts catalog would be built using a database for storage. Databases are very versatile in their ability to store and retrieve data. In this project, you will build a parts catalog system as a single-user system without the use of a database. Instead, you will create a B+-tree and store the parts data in it. Overview: This project consists of two parts: a B+-tree for storing parts data and a user interface for accessing the data. These two parts should be independent, so that changing to another storage system or another user interface is not too difficult. Your project should allow the user to maintain a parts catalog. A flat-file of part data will be provided. Your program should begin by loading data from the flat-file into a B+-tree. Once loaded, the user can query for a particular part number, display the next 10 parts, modify the description of a part, add…
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