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Data Structures and Algorithms in Java, 6th Edition by Roberto Tamassia, Michael T. Goodrich

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Chapter 9

Priority Queues

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Contents

9.1 The Priority Queue Abstract Data Type

9.1.1 Priorities

In Chapter 6, we introduced the queue ADT as a collection of objects that are added and removed according to the first-in, first-out (FIFO) principle. A company's customer call center embodies such a model in which waiting customers are told “calls will be answered in the order that they were received.” In that setting, a new call is added to the back of the queue, and each time a customer service representative becomes available, he ...

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