What is the space complexity of a queue implemented using a linked list?

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Question: What is the space complexity of a queue implemented using a linked list?

Options:

Correct Answer: O(n)

Solution:

The space complexity of a queue implemented using a linked list is O(n), where n is the number of elements in the queue.

What is the space complexity of a queue implemented using a linked list?

What is the space complexity of a queue implemented using a linked list?

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 that a linked list is a way to store data where each element (node) points to the next one.
Step 3: Realize that in a linked list implementation of a queue, each element in the queue is stored in a separate node of the linked list.
Step 4: Count the number of elements in the queue. Let's call this number 'n'.
Step 5: Understand that each node in the linked list requires some space to store the data and a pointer to the next node.
Step 6: Since there are 'n' nodes for 'n' elements in the queue, the total space used is proportional to 'n'.
Step 7: Conclude that the space complexity, which measures how much space is used as the number of elements grows, is O(n).

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