The answer
Don't memorize code. Understand the underlying pattern and use spaced repetition to revisit problems you found difficult.
How to Practice DSA Effectively: A Proven Strategy
How do I remember DSA problem solutions?
More FAQs in How to Practice DSA Effectively: A Proven Strategy
Quality matters more than quantity. Mastering 150-200 carefully selected problems across various patterns is generally enough for most interviews.
No, it's a part of learning. If you are stuck for more than 30-45 minutes, look at the solution, understand the concept, and implement it yourself.
Yes, practicing on a whiteboard or plain text editor helps you write syntactically correct code without relying on IDE autocomplete features.
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