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Programming, Data Structures and Algorithms using Python · End Term · 21 Dec 2025 · September 2025 term

Question 12: Consider the following class Node: Consider an implement…

Question 12

+4 marksOne correct option

Consider the following class Node:

Consider an implementation of a linked list where each node is created using the given class Node. Suppose head points to the first node of the linked list. Assume that the linked list is in sorted order.

What is an efficient way to remove all duplicate values in the linked list?

  1. A

    Recursively remove duplicates from the tail of the linked list.

  2. B

    Iterate through the linked list and use a nested loop to find duplicate values.

  3. C

    Traverse the linked list once, comparing each node with its immediate successor.

  4. D

    Traverse the linked list once and store non-duplicate elements in a new linked list.

Show answer

Correct answer

  • C

    Traverse the linked list once, comparing each node with its immediate successor.

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Question 12 of 50 in the IIT Madras BS Programming, Data Structures and Algorithms using Python (PDSA) End Term paper sat on 21 Dec 2025, in the September 2025 term (Programming, Data Structures And Algorithms Using Python 18 Dec 25). It carries 4 marks.

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