Question

How do you delete the tail node of a singly linked list if the link has...

How do you delete the tail node of a singly linked list if the link has
the head and does not have tail? Write the code. How much time does
it take to Do it?

Engineering   Computer-Science   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1
  1. We need iterate through the linked till before last node
  2. Store the last in temp variable
  3. Remove the link with before last node by making prev->next as NULL
  4. Than delete the last node

It takes O(n) as we dont have the tail node so we need to iterate the till before last node and remove that node

void deleteEnd() 
{ 

        // need to to find the lst before node
        Node prev = head; 
        // iterate till the last node
    while (prev.next.next != null) 
        prev = prev.next; 
    
    // making the prev.next as null so that the link will be removed 
    prev.next = null; 
}

NOTE : PLEASE COMMENT BELOW IF YOU HAVE CONCERNS.

I AM HERE TO HELP YOUIF YOU LIKE MY ANSWER PLEASE RATE AND HELP ME IT IS VERY IMP FOR ME

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
How do you delete the tail node of a singly linked list if the link has...
How do you delete the tail node of a singly linked list if the link has the head and does no have tail? Write the code. How much time does it take to do it? (java)
C++ Goals  Build single linked lists using pointers  Learn how to manipulate linked lists...
C++ Goals  Build single linked lists using pointers  Learn how to manipulate linked lists In this lab, you will create simple single linked structures consisting of Node objects. Each node will have a pointer to the next node. You will use a head pointer to keep track of the first node in the linked list, and a tail pointer to keep track of the last node in the linked list. Set both head and tail to NULL when...
c++ data structures linked list delete node bool deleteNode(int); pass this method an id to delete....
c++ data structures linked list delete node bool deleteNode(int); pass this method an id to delete. Return true or false to indicate success or failure. Delete the memory the node was using The algorithm for deleting a Node to a Linked List (general case): ● Begin at the head. ● Compare the id to the current node. ● If search id > current id, stop. ● Detach the current Node ○ current->previous->next = current->next ○ current->next->previous = current->previous ● Deallocate...
i want to complete this code to insert a new node in the middle of list...
i want to complete this code to insert a new node in the middle of list (take a node data from user, search the node and insert new node after this node). this is the code #include <iostream> #include <stdlib.h> using namespace std ; struct Node{                int data;                Node *link ;}; struct Node *head=NULL, *tail=NULL; /* pointers to Node*/ void InsertFront(); void InsertRear(); void DeleteFront(); void DeleteRear(); int main(){                int choice;                do{                               cout << "1:...
Implement a function that detects if there is a “loop” in a singly linked list. A...
Implement a function that detects if there is a “loop” in a singly linked list. A “loop” is defined as a link from one node to itself or to another node that is before the node in the list. The function may only make one pass through the list. It must return 1 if a “loop” exists; 0 otherwise. Be sure to test your function! You may start with code that you have written for other labs. This is a...
public class DoublyLinkedList { Node Head; // head of Doubly Linked List //Doubly Linked list Node...
public class DoublyLinkedList { Node Head; // head of Doubly Linked List //Doubly Linked list Node class Node { int value; Node prev; Node next; // Constructor to create a new node Node(int d) { value = d; } } // Inserting a node at the front of the list public void add(int newData) { // allocate node and put in the data Node newNode = new Node(newData); // Make the next of new node as head // and previous...
What will be the final linked-list after executing the following method on the given input singly...
What will be the final linked-list after executing the following method on the given input singly linked-list? Consider that the singly linked-list does not have a tail reference. Input: 1->2->3->4->5->6->7->8->null                                                                                                  void method(list){ if(list.head == null) return; Node slow_ref = list.head; Node fast_ref = list.head; Node prevS = null; Node prevF = null; while(fast_ref != null && fast_ref.next != null){ prevS = slow_ref; slow_ref = slow_ref.next; prevF = fast_ref; fast_ref = fast_ref.next.next; } prevS.next = slow_ref.next; prevF.next.next = slow_ref;...
C++ questions QUESTION 1 What kind of linked list begins with a pointer to the first...
C++ questions QUESTION 1 What kind of linked list begins with a pointer to the first node, and each node contains a pointer to the next node, and the pointer in the last node points back to the first node? A. Circular, singly-linked list. B. Circular, doubly-linked list. C. Singly-linked list. D. Doubly-linked list. E. None of the above.    QUESTION 2 _________ is not an advantage of linked lists when compared to arrays. A. Dynamic memory allocation. B. Efficient...
C++ Assumption and Terminology: Forward Linked List FLL has "head" Doubly Linked List DLL has "head"...
C++ Assumption and Terminology: Forward Linked List FLL has "head" Doubly Linked List DLL has "head" and "tail" Each node in FLL has "next" Each node in DLL has "next" and "prev" Q1: Complete the following constructor code for FLL FLL::FLL() { Q2: Complete the FLL insert-front code (which insert node new at the front of FLL) FLL::insert-front( node * new) { Q3: Complete the DLL insert-after code (which insert node new after node p) DLL::insert-after(node *p, node *new) {
Write an iterative algorithm in Java-like pseudocode for printing a singly linked list in reverse in...
Write an iterative algorithm in Java-like pseudocode for printing a singly linked list in reverse in O(N) time. You can use as much extra space as you need. The original list pointers CAN NOT BE MODIFIED. State in big-O notation how much extra space is used by this algorithm. Write another iterative algorithm in Java-like pseudocode for printing a singly linked list in reverse using O(1) extra space. The original list pointers CAN NOT BE MODIFIED. This algorithm can have...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT