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    Guided course · C# Language

    Time and Space Complexity in LINQ: back to the course

    Module 2 · Streaming vs Buffering · Lesson 4 of 18

    OrderBy Under the Hood: O(n log n), an O(n) Buffer, Stability and Top-k

    16 min readTechInterviewNotes Editorial TeamUpdated 13 Oct 2026Save

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    Its text, video and cheat sheet open with Full Access. This course's free lessons open without an account. Start with Big-O for .NET Developers: Time and Space in LINQ.

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