Write down the insertBefore method which inserts a new element in the list before the node containing the given element. The method takes as parameters a dummy headed doubly linked circular list, the element existing in the list and new element to be added. public void insertBefore (Node head, Object elem, Object newElement) { //to do OR def insertBefore (head, elem, newElement) : pass insertBefore (head, 3, 50) Sample Input Sample Output ০x 1 2 स 3 हे 40 O x21 2 2 2 50 2 3 2 4 0

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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8. Write down the insertBefore method which inserts a new element in the list before the
node containing the given element. The method takes as parameters a dummy headed
doubly linked circular list, the element existing in the list and new element to be added.
public void insertBefore (Node head, Object elem, Object
newElement) {
//to do
OR
def insertBefore (head, elem, newElement):
pass
insertBefore (head, 3, 50)
Sample Input
Sample Output
Ox21 2 223 240
O x21 2 22 50 ² 3 2 4 0
Transcribed Image Text:8. Write down the insertBefore method which inserts a new element in the list before the node containing the given element. The method takes as parameters a dummy headed doubly linked circular list, the element existing in the list and new element to be added. public void insertBefore (Node head, Object elem, Object newElement) { //to do OR def insertBefore (head, elem, newElement): pass insertBefore (head, 3, 50) Sample Input Sample Output Ox21 2 223 240 O x21 2 22 50 ² 3 2 4 0
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