Is re-solving old DSA problems a waste of time?
No. Re-solving problems helps reinforce patterns, improve retention, and build confidence. It's an important part of effective DSA preparation.
Verify This Answer
Cross-check this information using these trusted sources:
More FAQs in Is It Okay to Solve the Same Problems Multiple Times for Revision?
There's no fixed number, but revisiting a problem after a few days, a week, and again before interviews is a common and effective approach.
No. Focus on understanding the pattern, reasoning, and trade-offs behind the solution rather than memorizing code.
Both are important. New problems expose you to new patterns, while revision helps you retain and apply what you've already learned.
Still have questions?
Browse all our FAQs or reach out to our support team