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Chapter 18: Problem 11

What two queue-like containers does the STL offer?

Short Answer

Expert verified
Answer: The two queue-like containers provided by the C++ STL are 'queue' and 'priority_queue'.

Step by step solution

01

Identify the first queue-like container

The first queue-like container provided by the C++ STL is 'queue'. It is a container adaptor that offers first-in first-out (FIFO) functionality. Elements are inserted at the back of the queue and removed from the front.
02

Identify the second queue-like container

The second queue-like container provided by the C++ STL is 'priority_queue'. It is also a container adaptor, however, it differs from 'queue' in the way that elements are removed. In a 'priority_queue', elements are removed from the container based on their priority, which is determined by their value. The highest priority element (i.e. the element with the highest value) is always at the top, and elements are removed in descending order of their priority. So, the two queue-like containers provided by the C++ STL are 'queue' and 'priority_queue'.

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Most popular questions from this chapter

Describe two operations that all queues perform.

What is the difference between a static stack and a dynamic stack?

Suppose the following operations are performed on an empty queue: enqueue (5) enqueue (7) dequeue () enqueue (9) enqueue (12) dequeue () enqueue (10) Insert numbers in the following diagram to show what will be stored in the static queue after the operations have executed.

What does FIFO mean?

What types may the STL stack be based on? By default, what type is an STL stack based on?
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