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In a singly linked list, how do you access the last element?

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Question: In a singly linked list, how do you access the last element?

Options:

  1. Direct access
  2. Iterate from the head
  3. Use a tail pointer
  4. Access via index

Correct Answer: Iterate from the head

Solution: 

In a singly linked list, you must iterate from the head to access the last element, as there is no direct access.

In a singly linked list, how do you access the last element?

Practice Questions

Q1
In a singly linked list, how do you access the last element?
  1. Direct access
  2. Iterate from the head
  3. Use a tail pointer
  4. Access via index

Questions & Step-by-Step Solutions

In a singly linked list, how do you access the last element?
  • Step 1: Start at the head of the singly linked list.
  • Step 2: Check if the current node is null. If it is, the list is empty, and there is no last element.
  • Step 3: While the current node's next pointer is not null, move to the next node in the list.
  • Step 4: When you reach a node where the next pointer is null, that node is the last element of the list.
  • Singly Linked List – A data structure where each element points to the next, allowing sequential access but not direct access to elements.
  • Iteration – The process of traversing the list from the head to reach the last element, as there is no pointer to the last node.
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