Learn Data Structures and Algorithms
The ordered path from arrays to hashing, with code and complexity at every step.
- 10lessons
- 1 h 20 mof reading
- 39practice problems
- Freeno account needed
Data structures and algorithms is not a list of tricks to memorise; it is a small set of ideas that recombine. This track follows the order those ideas actually build in — how memory works, then what it costs, then the patterns that exploit both. Each lesson ends with practice, and each topic ends with a quiz so recall gets tested rather than assumed.
Syllabus
Built to make it stick
Read one idea at a time
Short lessons you can finish in one sitting, in the order the ideas actually build on each other.
Practise the pattern
Every lesson ends with problems tagged by pattern, so you learn the idea and not just the example.
Prove it under pressure
A timed quiz on every topic, and a mock interview when you are ready. Recall is the only test that counts.
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The non-technical rounds, prepared with the same rigour as the technical ones