Dictionaries & Sets in C#: interview exercises

Dictionaries & Sets in C#: 6 test-checked interview exercises (Count words, Invert keys and values), each beside a worked example, with tests as you go. Free.

1. Count words
2. Invert keys and values
3. Get by dotted path
4. Merge with defaults
5. Set operations
6. Top k most frequent

Each exercise pairs a worked example with a twin problem to solve in a real editor; the tests run the moment you do. Progress is saved in your browser, and in your account if you sign in.

More C# topics

• Strings
• Collections & LINQ
• Classes & Records
• Delegates & Iterators
• Exceptions & Disposal
• Async & Generics
• Practical

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