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Data Structures & AlgorithmsLearning
LESSON 48 / 75·2 min readFoundation

.NET DSA fundamentals

Should knowConcept lesson
01 Understand02 Recall03 Prepare

Common .NET collections

  • List<T> for dynamic arrays
  • Dictionary<TKey, TValue> for key-value lookup
  • HashSet<T> for unique values
  • Queue<T> for FIFO
  • Stack<T> for LIFO
  • LinkedList<T> for linked structure
  • PriorityQueue<T> for heap-based ordering
  • SortedDictionary<TKey, TValue> or SortedSet<T> for sorted behavior

Interview principle

Choose collection based on operation cost and ordering requirements.

PAUSE & RECALL

Can you explain it without the notes?

.NET DSA fundamentals

Use your own words. Explain an example and one limitation before checking the explanation.

Check your explanation

Common .NET collections

CONNECT IT TO YOUR INTERVIEW

Turn this concept into a clear answer.

.NET DSA fundamentals

Data Structures & Algorithms·C# / .NET implementations

Common .NET collections

Foundation2 min read
Practice this concept
YOUR NEXT STEP

Keep connecting the ideas.

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Adapted from 17_DSA_DOTNET.md · “1. .NET DSA fundamentals”. Examples are study fragments; framework behavior can depend on your version.