1. You are given a linked list with N nodes.
2. You are also given a number K.
3. You have to write a function that finds the sum of last K nodes in the Linked List.
4. display is a utility function which displays the contents of Linked List,
feel free to use it for debugging purposes.
5. main takes input from the users and creates the Linked List. You can use
display to know its contents.
6. This is a functional problem.
7. You should code only the sum function. It takes as input the
head of the linked list and K. It returns the sum of last K nodes.
8. Don't change the code of Node, main and display.Input Format
First line takes N, the number of elements in the list, and K. Next line takes input N space separated numbers reperesenting elements of the linked list. Input is handled for you.
Output Format
Sum of last K nodes of the Linked List. Output is handled for you.
Constraints
1 <= K <= N <= 300
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
6 3 5 9 6 3 4 10
Output
17