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‹ Library / C# Track

Collections and Algorithmic Complexity

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Difficulty: Medium · 26 min

Choosing arrays, List<T>, Dictionary<TKey,TValue>, HashSet<T>, queues, and stacks using time, memory, ordering, and concurrency requirements.

Prep paths

C# Interview Foundations: Types, LINQ, and ConcurrencyA practical C# interview path covering the type system, object-oriented design, generics, collections, LINQ, resource safety, async workflows, cancellation, and .NET memory management.