Write a program that lists all ways people can line up for a photo (all permutations of a list of strings). The program will read a list of on word names, then use a recursive method to create and output all possible orderings of those names, one ordering per line. When the input is: Julia Lucas Mia then the output is (must match the below ordering): Julia Lucas Mia Julia Mia Lucas Lucas Julia Mia Lucas Mia Julia Mia Julia Lucas Mia Lucas Julia
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Q: Write a program that lists all ways people can line up for a photo (all permutations of a list of…
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Q: Write a program that lists all ways people can line up for a photo (all permutations of a list of…
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Q: Write a program that lists all ways people can line up for a photo (all permutations of a list of…
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- Java help. The file UnsortedLinkedDictionary.java contains unimplemented methods for a dictionary basedon an unsorted linked list. Implement all these methods. The java code is below: import java.util.Iterator;import java.util.NoSuchElementException;public class UnsortedLinkedDictionary<K, V> {public static void main(String args[]){// Add you tests here}public UnsortedLinkedDictionary() {} // end default constructorpublic V add(K key, V value) {} // end addpublic V remove(K key) {} // end removepublic V getValue(K key) {} // end getValuepublic boolean contains(K key) {} // end containspublic boolean isEmpty() {} // end isEmptypublic int getSize() {} // end getSizepublic final void clear() { } // end clearprivate class Node {private K key;private V value;private Node next;private Node(K searchKey, V dataValue) {key = searchKey;value = dataValue;next = null; } // end constructorprivate Node(K searchKey, V dataValue, Node nextNode) {key = searchKey;value = dataValue;next =…import java.util.ArrayList;import java.util.Arrays; public class PS07A{/*** Write the method named mesh.* * Start with two ArrayLists of String, A and B, each with * its elements in alphabetical order and without any duplicates. * Return a new list containing the first N elements from the two * lists. The result list should be in alphabetical order and without * duplicates. A and B will both have a size which is N or more. * Your solution should make a single pass over A and B, taking * advantage of the fact that they are in alphabetical order, * copying elements directly to the new list.* * Remember, to see if one String is "greater than" or "less than" * another, you need to use the compareTo() method, not the < or > * operators. * * Examples:* mesh(["a","c","z"], ["b","f","z"], 3) returns ["a","b","c"]* mesh(["a","c","z"], ["c","f","z"], 3) returns ["a","c","f"]* mesh(["f","g","z"], ["c","f","g"], 3) returns ["c","f","g"]* * @param a an ArrayList of String in alphabetical…Implement a simple linked list in Python (Write source code and show output) with basic linked list operations like: (a) create a sequence of nodes and construct a linear linked list. (b) insert a new node in the linked list. (b) delete a particular node in the linked list. (c) modify the linear linked list into a circular linked list. Use this template: class Node:def __init__(self, val=None):self.val = valself.next = Noneclass LinkedList:"""TODO: Remove the "pass" statements and implement each methodAdd any methods if necessaryDON'T use a builtin list to keep all your nodes."""def __init__(self):self.head = None # The head of your list, don't change its name. It shouldbe "None" when the list is empty.def append(self, num): # append num to the tail of the listpassdef insert(self, index, num): # insert num into the given indexpassdef delete(self, index): # remove the node at the given index and return the deleted value as an integerpassdef circularize(self): # Make your list circular.…
- class Node: def __init__(self, e, n): self.element = e self.next = n class LinkedList: def __init__(self, a): # Design the constructor based on data type of a. If 'a' is built in python list then # Creates a linked list using the values from the given array. head will refer # to the Node that contains the element from a[0] # Else Sets the value of head. head will refer # to the given LinkedList # Hint: Use the type() function to determine the data type of a self.head = None # To Do # Count the number of nodes in the list def countNode(self): # To Do # Print elements in the list def printList(self): # To Do # returns the reference of the Node at the given index. For invalid index return None. def nodeAt(self, idx): # To DoDesign a method for the class myLinkedList named: insertSorted() which will add an element in the correct position in a sorted list eg list before{2,6,7,8} InsertSorted(3) List after{2,3,6,7,8} Use the 4 steps design method(diagram,general,special cases and code) Javain java language import java.util.ArrayList;import java.util.Arrays; Write the method named mesh.* * Start with two ArrayLists of String, A and B, each with * its elements in alphabetical order and without any duplicates. * Return a new list containing the first N elements from the two * lists. The result list should be in alphabetical order and without * duplicates. A and B will both have a size which is N or more. * Your solution should make a single pass over A and B, taking * advantage of the fact that they are in alphabetical order, * copying elements directly to the new list.* * Remember, to see if one String is "greater than" or "less than" * another, you need to use the compareTo() method, not the < or > * operators. * * Examples:* mesh(["a","c","z"], ["b","f","z"], 3) returns ["a","b","c"]* mesh(["a","c","z"], ["c","f","z"], 3) returns ["a","c","f"]* mesh(["f","g","z"], ["c","f","g"], 3) returns ["c","f","g"]* * @param a an ArrayList of String in alphabetical order.*…
- Write a Java class myLinkedList to simulate a singly linked list using arrays as the underlying structure. Include the following methods: 1. insert an element within the linked list.(this should also work for the front and the rear of the list) 2. Remove an element from the linked list 3. Display (print) the elements of the linked list in order. 4. A method to check if the list is "empty". Test your solution using a linked list that initially has the characters A, B, D, E, F, and G. Insert "C" between B and D. Remove element "F". [Hint: One solution (recommended) is to use 2 arrays. One for the data, and the other for the "next" pointer. Also, consider using dummy nodes for the front, and possibly the rear of the list] Extend the solution so that it simulates a doubly linked list! (hint: You will need a third array to represent the "backward" pointers)Complete the method loadBuses(String bfile) that reads information bus information from afile (bfile contains the filename) . Each row in the file should trigger the creation of aninstance of bus or an appropriate subclass, according to the data in table 1. All buses createdshould be added to an arraylist. LoadBuses should return the populated arraylist. This should be done for Bus, TrainingBus, SportsBus, PartyBus public Bus( String name, int size, int price, int lev, Ministry mny) { approvedTrips=new ArrayList<Trip>(); this.name = name; this.size =size; this.price = price; this.level = lev; this.id = getNextId(); this.mny = mny; tripTypes = "BASICTRANSPORT"; } import java.util.Scanner; public class TrainingBus extends Bus { private int teacherArea; public TrainingBus(Bus b, int teacherArea) { super(b.getName(), b.getSize(),…Complete the method loadBuses(String bfile) that reads information bus information from afile (bfile contains the filename) . Each row in the file should trigger the creation of aninstance of bus or an appropriate subclass, according to the data in table 1. All buses createdshould be added to an arraylist. LoadBuses should return the populated arraylist. This should be done for Bus, TrainingBus, SportsBus, PartyBus public Bus( String name, int size, int price, int lev, Ministry mny) { approvedTrips=new ArrayList<Trip>(); this.name = name; this.size =size; this.price = price; this.level = lev; this.id = getNextId(); this.mny = mny; tripTypes = "BASICTRANSPORT"; } import java.util.Scanner; public class TrainingBus extends Bus { private int teacherArea; public TrainingBus(Bus b, int teacherArea) { super(b.getName(), b.getSize(),…
- Computer Science 1. Write a generic method named array_prod() that takes an array of a generic type are returns the product of the values in the elements in the array. Make sure that the generic type extends the Number class. The Number class is defined in the java.lang package. 2. Complete the main() method to find the products of the elements in the provided arrays. Print the results in the main method using 3 decimals.java program : Assume that the following method is added to the class KWLinkedList. What is the functionality of the following method? public E function() { Node<E> temp = tail; tail.prev.next = null; tail = temp.prev; size--; return temp.data; } Return the second last element of the list but do not remove it. Return the second last element of the list and remove it from the list. Return the element at the tail of the list and remove it from the list. Return the element at the tail of the list but do not remove it.java program: University of Bahrain College of Information Technology Department of Computer Science Second Semester, 2020-2021 ITCS214 / ITCS215 / ITCS216 (Data Structures) Assignment 3 Implement generic class ArrayStack as discussed in the lectures having following methods: constructor, push, pop, peek, isEmpty, copy constructor, reallocate (private method). Also add following methods to this class: size: returns number of elements in the stack. contains: Search an element in the stack. If found returns true, else returns false. clear: Deletes all elements of the stack and make it empty stack. Implement generic class ArrayQueue as discussed in the lectures having following methods: constructor, copy constructor, offer, poll, peek, isEmpty, reallocate(private), iterator. Inner class Iter that implements interface Iterator having methods: constructor, hasNext, next. Also add following methods to the ArrayQueue class: size: returns number of elements in the queue. contains: Search…