Which data structure can be used to implement a priority queue?
Practice Questions
Q1
Which data structure can be used to implement a priority queue?
Array
Linked List
Heap
Stack
Questions & Step-by-Step Solutions
Which data structure can be used to implement a priority queue?
Step 1: Understand what a priority queue is. A priority queue is a special type of queue where each element has a priority. Elements with higher priority are served before those with lower priority.
Step 2: Learn about heaps. A heap is a specific type of binary tree that maintains a certain order. In a max-heap, the parent node is always greater than or equal to its child nodes, which helps in retrieving the highest priority element quickly.
Step 3: Recognize that heaps can be implemented using arrays, making them efficient in terms of space and time.
Step 4: Conclude that heaps are commonly used to implement priority queues because they allow for fast insertion and removal of elements based on priority.
