Question: A student decides to implement a Queue using a Linked List without a tail pointer. What is the best asymptotic upper limit ( the big

A student decides to implement a Queue using a Linked List without a tail pointer. What is the best asymptotic upper limit (the big-O) running times they can achieve for enqueue and dequeue?
Both in O(1)
Both in O(n)
One in O(1), one in O(n)

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