1. You are given a partially written LinkedList class.
2. Here is a list of existing functions:
2.1 addLast - adds a new element with given value to the end of Linked List
2.2. display - Prints the elements of linked list from front to end in a single line.
All elements are separated by space
2.3. size - Returns the number of elements in the linked list.
2.4. removeFirst - Removes the first element from Linked List.
2.5. getFirst - Returns the data of first element.
2.6. getLast - Returns the data of last element.
2.7. getAt - Returns the data of element available at the index passed.
2.8. addFirst - adds a new element with given value in front of linked list.
2.9. addAt - adds a new element at a given index.
2.10. removeLast - removes the last element of linked list.
2.11. removeAt - remove an element at a given index
2.12 kthFromLast - return kth node from end of linked list.
3. You are required to complete the body of mid function. The function should be an iterative function and should return the mid of linked list. Also, make sure to not use size data member directly or indirectly (by calculating size via making a traversal). In linked list of odd size, mid is unambigous. In linked list of even size, consider end of first half as mid.
4. Input and Output is managed for you. Input Format
Input is managed for you
Output Format
Output is managed for you
Constraints
1. Size property should not be used directly or indirectly 2. Constant time, single traversal is expected 3. Iterative solution, (not recursion) is expected.
Notice
Try First, Check Solution later
1. You should first read the question and watch the question video.2. Think of a solution approach, then try and submit the question on editor tab.3. We strongly advise you to watch the solution video for prescribed approach.Example
Input
addLast 10 getFirst addLast 20 addLast 30 getFirst getLast getAt 1 addLast 40 mid getLast addLast 50 removeFirst getFirst removeFirst removeFirst mid removeFirst removeFirst getFirst quit
Output
10 10 30 20 20 40 20 40 List is empty