What is the time complexity of a queue's enqueue operation?

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Question: What is the time complexity of a queue\'s enqueue operation?

Options:

Correct Answer: O(1)

Solution:

Enqueue operation in a queue is done in constant time, hence O(1).

What is the time complexity of a queue's enqueue operation?

What is the time complexity of a queue's enqueue operation?

Step 1: Understand what a queue is. A queue is a data structure that follows the First In First Out (FIFO) principle.
Step 2: Know what the enqueue operation is. Enqueue means adding an item to the back of the queue.
Step 3: Realize that adding an item to the back of the queue does not depend on the number of items already in the queue.
Step 4: Since the time it takes to add an item is the same regardless of how many items are in the queue, we say it takes constant time.
Step 5: In computer science, constant time is represented as O(1).
Step 6: Therefore, the time complexity of the enqueue operation in a queue is O(1).

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