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      Question

      What is the time complexity for performing enqueue and dequeue operations on a queue implemented using a linked list?

      A O(n) for both Correct Answer Incorrect Answer
      B O(log n) for both Correct Answer Incorrect Answer
      C O(1) for both Correct Answer Incorrect Answer
      D O(1) for enqueue, O(n) for dequeue Correct Answer Incorrect Answer
      E O(n) for enqueue, O(1) for dequeue Correct Answer Incorrect Answer

      Solution

      With proper pointers (head and tail), both enqueue (adding to tail) and dequeue (removing from head) operations in a linked list implementation of a queue can be achieved in constant time, O(1).

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