I made a spaced repetition tool to master coding problems
As you solve LeetCode questions, you can mark them as hard, medium, or easy. The tool will then recommend questions you should review based on (1) how hard the question was for you and (2) how much time has passed since you last reviewed it. I'd recommend normally attempting LeetCode problems and just marking them as hard, medium, or easy for you at first so the tool knows which problems to recommend you review! Here's the theory behind spaced repetition and learning if interested: https://www.codecademy.com/article/spaced-repetition
I made a spaced repetition tool to master coding problems launched on April 26, 2024 with 206 votes, #223 of 4,347 launches that month and more than 95% of that year's launches. The site was still online in September 2026, 2 years on.
In plain words
This tool helps developers retain coding knowledge by applying spaced repetition to LeetCode problems. Users mark problems as hard, medium, or easy as they solve them, and the tool recommends which problems to review based on difficulty level and time since last practice. It's designed for anyone preparing for coding interviews or building long-term programming skills through systematic review.
written from the facts on this page · September 2026
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