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Which data structure is more efficient for implementing a stack?

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Question: Which data structure is more efficient for implementing a stack?

Options:

  1. Array
  2. Linked List
  3. Both are equally efficient
  4. None of the above

Correct Answer: Linked List

Solution: 

While both can be used to implement a stack, a linked list is often more efficient for dynamic size management, as it does not require resizing like an array.

Which data structure is more efficient for implementing a stack?

Practice Questions

Q1
Which data structure is more efficient for implementing a stack?
  1. Array
  2. Linked List
  3. Both are equally efficient
  4. None of the above

Questions & Step-by-Step Solutions

Which data structure is more efficient for implementing a stack?
  • Step 1: Understand what a stack is. A stack is a data structure that follows the Last In, First Out (LIFO) principle, meaning the last item added is the first one to be removed.
  • Step 2: Learn about the two common data structures used to implement a stack: arrays and linked lists.
  • Step 3: Know that an array has a fixed size. If you want to add more items than the array can hold, you need to create a new, larger array and copy the items over. This can be slow and inefficient.
  • Step 4: Understand that a linked list consists of nodes, where each node points to the next one. This allows you to easily add or remove items without worrying about size limitations.
  • Step 5: Realize that because a linked list can grow and shrink as needed, it is often more efficient for managing a stack when the number of items can change frequently.
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