Codacoda
Back to Academy

stacks queues

Priority Queue

A Priority Queue is an abstract data structure where each element has a priority, and the element with the highest (or lowest) priority is served first. It is typically implemented using a binary heap, providing efficient insertion and extraction of the minimum or maximum element. It is essential for algorithms like Dijkstra's and Huffman coding.

Use Cases

  • •Task scheduling based on priority levels
  • •Dijkstra's and Prim's graph algorithms
  • •Event-driven simulations and real-time systems

Complexity Analysis

MetricBestAverageWorst
TimeO(1)O(log n)O(log n)
SpaceO(n)

Visualization

3510255201530
35
10
25
5
20
15
30
Speed:1x
Initial arrayStep 1 / 6

Implementation

Output

Click "Run Code" to see output...