Which data structure allows for efficient last-in, first-out (LIFO) operations?

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Question: Which data structure allows for efficient last-in, first-out (LIFO) operations?

Options:

Correct Answer: Stack

Solution:

A stack is designed for LIFO operations, allowing the last element added to be the first one removed.

Which data structure allows for efficient last-in, first-out (LIFO) operations?

Which data structure allows for efficient last-in, first-out (LIFO) operations?

Step 1: Understand what LIFO means. LIFO stands for Last-In, First-Out, which means the last item added is the first one to be removed.
Step 2: Learn about the stack data structure. A stack is a collection of elements that follows the LIFO principle.
Step 3: Visualize how a stack works. Imagine a stack of plates; you can only take the top plate off first.
Step 4: Recognize the operations of a stack. The main operations are 'push' (to add an item) and 'pop' (to remove the top item).
Step 5: Conclude that a stack is the data structure that allows for efficient LIFO operations.

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