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- In this question, you are to implement two functions for reversing linked lists. One function, reverse_iter(..), must use an iterative approach (i.e., loops), whereas the other function, reverse_rec(..), must use recursion instead. We have already implemented the linked list as well as all its helper-functions in the Ilist-module.Implements clone which duplicates a list. Pay attention, because if there are sublists, they must be duplicated as well. Understand the implementation of the following function, which recursively displays the ids of each node in a list Develop your solution as follows: First copy the nodes of the current list (self) Create a new list with the copied nodes Loop through the nodes of the new list checking the value field If this field is also a list (use isinstance as in the show_ids function) then it calls clone on that list and substitutes the value. Complete the code: def L4(*args,**kwargs): class L4_class(L): def clone(self): def clone_node(node): return <... YOUR CODE HERE ...> r = <... YOUR CODE HERE...> return r return L4_class(*args,**kwargs)Implement a function to insert a node at the end of a doubly linked list. Explain the steps involved and analyze the time complexity of your implementation.
- Given a singly linked list, print reverse of it using a recursive function printLinkedList( node *first ) where first is the pointer pointing to the first data node. For example, if the given linked list is 1->2->3->4, then output should be: 4 3 2 1 (note the whitespace in between each data value)A linked list is said to contain a cycle if any node is visited more than once while traversing the list. Given a pointer to the head of a linked list, determine if it contains a cycle. If it does, return 1. Otherwise, return 0. Example: head refers to the list of nodes 1 → 2 → 3 → 1 → NULL. There is a cycle where node 3 points back to node 1, so return 1. Function Description: Complete the has cycle function provided in the moodle assignment folder. It has the following parameter: • SinglyLinkedListNode pointer head: a reference to the head of the list. Returns: • int: 1 if there is a cycle or 0 if there is not. Note: if the list is empty, head will be null. Input Format: The code stub reads from stdin and passes the appropriate argument to your function. The custom test cases format will not be described for this question due to its complexity. Expand the section for the main function and review the code if you would like to figure out how to create a custom case. Constraints:…Both array lists and linked lists are examples of how a list may be implemented. Discuss a scenario when a linked list might be preferable than a list stored in an array. Explain your reasoning in each situation.
- For a singly linked list pointed at by pointer Ptr, write the implementation of a function named CountPositive that counts and prints the nodes with positive value in the list. Take in consideration all special cases. (** The declaration of the Node is: typedef struct Node { int data; Node*next; }Node;Can anyone please solve this question asap ? Thank yoyuIn this question, you are required to implement singly linked list and its concepts to solve the problems of a departmental store described in the scenario given below:A departmental store has a variety of products to sell. Each product type has a unique ID and price associated with it (for example soaps can have an ID of 1 and price of 50 etc.). A customer comes to the store and starts putting items in his/her shopping cart. Once all theitems have been placed in the shopping cart, the customer then proceeds to checkout but before that, he/she will sort (in ascending order of IDs) the shopping cart’s items and proceed to remove all the duplicate items from the shopping cart, that is if two soaps have been added to the cart, only 1 will be kept. At the checkout counter, he/she will then remove items from the cart by removing from the end of the shopping cart (linked list). A bill for that customer is then generated and printed.You…What are the requirements for determining if a linked list T is empty if T is one of the following: (i) a simple singly linked list, (ii) a headed singly linked list, (iii) a simple circularly linked list, or (iv) a headed circularly linked list?
- Write a function to count the number of nodes in a singly linked list. Discuss the approach and complexity of your solution.3. Write a function to return the median value in a sorted linked list. If the length i of the list is odd, then the median is the ceiling(i/2) member. For example, given the list (1, 2, 2, 5, 7, 9, 11) as input, your function should return the value 5. If the length of the list is even, then the median is the mean of the i/2 and (i/2)+1 members. Thus, the median of the sorted list (2, 4, 8, 9) is (4+8)/2. Finally, define the median of an empty list to be 0.The special case(s) when deleting a node in a linked list is/are: а. The list is empty. O b. All c. The node to be deleted is the first node. O d. There is only one node in the list.