How Can I Implement a Priority Queue Efficiently in .NET?

.NET Priority Queue: Leveraging the C5 IntervalHeap

The .NET framework lacks built-in priority queue functionality. However, the C5 Generic Collection Library offers an excellent solution: the IntervalHeap.

Understanding IntervalHeap

The IntervalHeap, as documented, uses an interval heap structure (implemented as an array of pairs) for efficient key-based element management. Key features include O(1) complexity for FindMin and FindMax, and O(log n) complexity for DeleteMin, DeleteMax, Add, and Update, as well as the indexer's set accessor.

Simple Integration Example

Using IntervalHeap is straightforward:

<code class="language-csharp">using C5;
// ...
var heap = new IntervalHeap<int>();
heap.Add(10);
heap.Add(5);
heap.FindMin(); // Returns 5</code>

Installation Methods

Include IntervalHeap in your project via NuGet ("C5" package) or directly from the C5 source code on GitHub ("C5/C5").

The C5 IntervalHeap provides a robust and efficient priority queue implementation for .NET, simplifying the handling of key-sorted data elements within your applications. Its clean API and optimized performance make it a strong choice for various scenarios.

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