adspace


How to traverse data in a linked list in forward and backward direction, write the algorithm?

Answer Posted / Bhagat Singh

To traverse a LinkedList in forward direction:
1. Get the head of the list (first node).
2. Until the current node is not null, move to the next node by accessing its 'next' reference.
3. Print or perform an operation on each node as you visit it.

To traverse a LinkedList in backward direction:
1. Get the last node of the list (last node is the one with null 'next' reference).
2. Until the current node is not the head, move to the previous node by accessing its 'previous' reference (if available) or the current node's 'next' reference (if 'previous' is not available).
3. Print or perform an operation on each node as you visit it.

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

For the following COBOL code, draw the Binary tree? 01 STUDENT_REC. 02 NAME. 03 FIRST_NAME PIC X(10). 03 LAST_NAME PIC X(10). 02 YEAR_OF_STUDY. 03 FIRST_SEM PIC XX. 03 SECOND_SEM PIC XX.

1406


Can you declare an array without assigning the size of an array?

1225


Draw a binary Tree for the expression : A * B - (C + D) * (P / Q)

1508


Write a program for Sorting an Array. Which sorting will you prefer?

1049


What sort of serious problems have you experienced, and how have you handled them?

1035


“int a[] = new int[3]{1, 2, 3}” – This a legal way of defining the arrays?

1295