Dsaprep.dev – Filter real LeetCode questions by company and timeframe

Show HN: Spaced Repetition for LeetCode – Stop Forgetting Problems You've Solved

Dsaprep.dev – Filter real LeetCode questions by company and timeframe is a business in show hn launch.

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Hi HN,I built a spaced repetition system for Leetcode after realizing I'd "solved" 150+ problems but couldn't recall the patterns when faced with new questions in actual interviews.The problem: Solving problems once creates the illusion of learning without actual retention. Your brain discards solutions as "one-time knowledge" unless you review them at spaced intervals.What it does: - Automatically schedules problem reviews (1 day → 3 days → 1 week → 2 weeks → 1 month, etc.) - Adjusts intervals based on difficulty (easy problems reviewed less frequently) - Highlights overdue problems that need attention - Tracks your actual retention with notes/flashcardsKey insight: It's better to master 50

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Website: www.dsaprep.dev