The addition operator + acts as concatenation
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Python
![The addition operator + acts as
concatenation
on objects of type
"list". That is, the code
[ Select ]
concatenation
[3,4,-1,2]+[5,-2,6,1]
componentwise addition
would result in the list [3,4,-1,2,5,-2,6,1]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe5f558a7-14fc-4024-84d6-4debb1adc6f6%2Fc3cb101e-bbe6-477a-8f25-7f40fd5cf725%2Fo5qzdca_processed.png&w=3840&q=75)
Step by step
Solved in 2 steps with 1 images
- Suppose, alist is a 2-dimensional list that is defined as follows. alist = [ [1], [2,3], [5,6,7] ] Which is the best option to access the last element of the last element of this list (i.e., 7)? Question options: a. alist[ len(alist) - 1 ][len(alist[len(alist) - 1]) - 1] b. alist[ len(alist) - 1 ][len(alist[len(alist) - 1])] c. alist[3][3] d. alist[ len(alist) - 1 ][1]In CPP, Modify the arrayListType by adding a member function that keep the first element in the list as is and replace subsequent elements by the result of subtracting the element from the first element. This member function returns the first element in the list. For example, if the list L contains the elements 2,1,3,4,5,3,0 and you call the member function as in L.differentiate (); The list content will then be changed to 2,1,-1,-2, -3,-1,2 And the function returns 2. The list should not be empty.Please explai The list ADT interface and its implementation remove the need for the original list interface and its two implementing classes (ElementNode & EmptyNode). Group of answer choices A. True B. False C. No answer text provided. D. No answer text provided. Q#2, What is the type of the argument to a sort operation on a list? Group of answer choices A. Function B. Predicate C. Comparator D. BiFunction
- Add a new public member function to the LinkedList class named reverse() which reverses the items in the list. You must take advantage of the doubly-linked list structure to do this efficiently as discussed in the videos/pdfs, i.e. swap each node’s prev/next pointers, and finally swap headPtr/tailPtr. Demonstrate your function works by creating a sample list of a few entries in main(), printing out the contents of the list, reversing the list, and then printing out the contents of the list again to show that the list has been reversed. Note: your function must actually reverse the items in the doubly-linked list, not just print them out in reverse order! Note: we won't use the copy constructor in this assignment, and as such you aren't required to update the copy constructor to work with a doubly-linked list. This is what I have so far but its not working! template<class ItemType>void LinkedList<ItemType>::reverse(){ Node<ItemType>*curPtr,*prev,*next;…Hello. Please add a toString() function to the Java class implementation of the singly-linked list which returns the contents of the singly-linked list. Also, does Java have a built-in class that implements singly-linked lists? Thank you. public class SinglyLinkedList<E>{ private static class Node<E> { private E element; private Node<E> next; public Node(E e, Node<E> n) { element = e; next = n; } public E getElement() { return element;} public Node<E> getNext() { return next;} public void setNext(Node<E> n) { next = n;} } private Node<E> head = null; private Node<E> tail = null; private int size = 0; public SinglyLinkedList() {} public int size() { return size;} public boolean isEmpty() { return size == 0;} public E first() { if(isEmpty()) return null; return head.getElement(); } public E last() {…Write a function that takes a list removal(L), delete from it all the elements whose indicesare divisible by 3. And return the resulting list after removing unwanted elements.Example:>>>removal(['A', 'B', 'C', 'D', 'E'])['B', 'C','E'
- Q4 Suppose, alist is a 2-dimensional list that is defined as follows. alist = [ [1], [2,3], [5,6,7] ] Which is the best option to access the last element of the last element of this list (i.e., 7)? Question 4 options: alist[ len(alist) - 1 ][len(alist[len(alist) - 1]) - 1] alist[ len(alist) - 1 ][len(alist[len(alist) - 1])] alist[3][3] alist[ len(alist) - 1 ][1]You are going to implement a program that creates an unsorted list by using a linked list implemented by yourself. NOT allowed to use LinkedList class or any other classes that offers list functions. It is REQUIRED to use an ItemType class and a NodeType struct to solve this. Use C++, please read instructions carefully and new solution only! The “data.txt” file has three lines of data 100, 110, 120, 130, 140, 150, 160 100, 130, 160 1@0, 2@3, 3@END You need to 1. create an empty unsorted list 2. add the numbers from the first line to list using putItem() function. Then print all the current keys to command line in one line using printAll(). 3. delete the numbers given by the second line in the list by using deleteItem() function. Then print all the current keys to command line in one line using printAll().. 4. putItem () the numbers in the third line of the data file to the corresponding location in the list. For example, 1@0 means adding number 1 at position 0 of the list. Then…The remove method of the reference-based list implementation requires O(N) time since it needs to relocate members following the removal operation. Is it true or false?
- If operations given below is applied on a stack, what will be the result? For array implementation we need is_full() operation, however in linked list case this function is not required. Explain the reason createStack()push(1)push(2)push(1)peek()push(2)pop()pop()pop()push(2)push(1)push(2)Write appropriate comments for the following partial code. Mention, the relation of linked list with the partial code.Partial Code: typedef struct node_s { char current[3]; int volts; struct node_s *linkp; } node_t;9.5 Write a method of SinglyLinkedList, called reverse, that reverses theorder of the elements in the list. This method should be destructive—it shouldmodify the list upon which it acts.9.6 Write a method of DoublyLinkedList, called reverse, that reverses theorder of the elements in the list. This method should be destructive.9.7 Write a method of CircularList, called reverse, that reverses theorder of the element in the list. This method should be destructive.9.8 Each of the n references in a singly linked list are needed if we wishto remove the final element. In a doubly linked list, are each of the additional n previous references necessary if we want to remove the tail of thelist in constant time? (Hint: What would happen if we mixed Nodes andDoublyLinkedNodes?)