Virtual Labs

What is a Doubly Ended Queue (Deque)?

A queue where elements can be added or removed from both ends
A queue where elements can only be added at the rear
A queue where elements can only be removed from the front
A queue implemented using a stack

Which operation is NOT supported by a Deque?

Insertion at the front
Deletion from the rear
Random access of elements
Insertion at the rear

What is the time complexity of insertion and deletion operations in a Deque?

O(1)
O(n)
O(log n)
O(n²)

Which of the following is a valid application of a Deque?

Implementing a stack
Sliding window problems
Priority queue implementation
Binary search

What is the difference between an input-restricted and an output-restricted Deque?

Input-restricted allows insertion at one end only, while output-restricted allows deletion at one end only
Input-restricted allows deletion at both ends, while output-restricted allows insertion at both ends
Input-restricted allows insertion at both ends, while output-restricted allows deletion at both ends
There is no difference

Virtual Labs

Doubly Ended Queue (Deque) Posttest

Answer the multiple-choice questions below to test your understanding!

Multiple-Choice Questions:

Virtual Labs

Doubly Ended Queue (Deque) Posttest

Answer the multiple-choice questions below to test your understanding!

Multiple-Choice Questions:

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