Data Structure: Queues
10 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the primary characteristic of a queue data structure?

  • Elements are added and deleted from the same end.
  • Elements are arranged in a specific order based on priority.
  • Elements can be accessed from anywhere in the queue.
  • Elements are added at one end and deleted from the other end. (correct)

What would happen if an element is added to a full queue?

  • The queue will be reinitialized.
  • The queue will be resized to accommodate more elements.
  • An element will be removed from the front of the queue.
  • A queue overflow exception will be generated. (correct)

What is the purpose of the 'rear' pointer in a queue?

  • It points to the last element of the queue. (correct)
  • It points to the first element of the queue.
  • It points to the maximum size of the queue.
  • It points to the middle element of the queue.

What is a solution to the problem of 'rear' pointing to the last array position after a number of insertion and deletion operations?

<p>Use a circular array. (B)</p> Signup and view all the answers

What is an example of a real-life scenario where a queue is used?

<p>A printer job queue. (B)</p> Signup and view all the answers

What is the condition for the queue to be full?

<p>size == queue.length (A)</p> Signup and view all the answers

What is the purpose of the next_index formula in the CircularQueue implementation?

<p>To handle the circular nature of the queue (C)</p> Signup and view all the answers

What happens when the enqueue operation is called on a full queue?

<p>An error message is printed and the operation is terminated (B)</p> Signup and view all the answers

What is the purpose of the front and rear indices in the CircularQueue implementation?

<p>To keep track of the current indices of the queue (C)</p> Signup and view all the answers

What does the dequeue operation return when the queue is empty?

<p>-1 (D)</p> Signup and view all the answers

More Like This

Use Quizgecko on...
Browser
Browser