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What is the expected runtime for the dequeue() operation on a correctly implemented array based queue?

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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What is the expected runtime for the dequeue() operation on a correctly implemented array based
queue?
O(n?)
O(logn)
O(n)
O(nlogn)
O(1)

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