Question

Which of the following data structures can be used to implement the priority queue abstract data type? (Select all that apply.)

a) basic array
b) binary heap
c) self-balancing binary search tree

Answer 1

A) basic array, binary heap, and self-balancing binary search tree can all be used to implement a priority queue, with binary heap being a particularly efficient choice.

Step-by-step explanation:

The data structures that can be used to implement the priority queue abstract data type include:

• Basic array: Though not efficient for all priority queue operations, it can be used to implement a priority queue.
• Binary heap: This is a very efficient data structure for implementing a priority queue, offering good performance for insertion and removal.
• Self-balancing binary search tree: Also an efficient choice, it can maintain a sorted structure, allowing for efficient priority queue operations.

Therefore, all three options, a) basic array, b) binary heap, and c) self-balancing binary search tree are suitable for implementing a priority queue, each with its own performance considerations.