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Show HN: AlgoDrill – Interactive drills to stop forgetting LeetCode patterns

(algodrill.io)
178 points henwfan | 1 comments | 09 Dec 25 11:09 UTC | HN request time: 0.37s | source

I built AlgoDrill because I kept grinding LeetCode, thinking I knew the pattern, and then completely blanking when I had to implement it from scratch a few weeks later.

AlgoDrill turns NeetCode 150 and more into pattern-based drills: you rebuild the solution line by line with active recall, get first principles editorials that explain why each step exists, and everything is tagged by patterns like sliding window, two pointers, and DP so you can hammer the ones you keep forgetting. The goal is simple: turn familiar patterns into code you can write quickly and confidently in a real interview.

https://algodrill.io

Would love feedback on whether this drill-style approach feels like a real upgrade over just solving problems once, and what’s most confusing or missing when you first land on the site.

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firsttracks ◴[09 Dec 25 15:33 UTC] No.46206026[source]▶
Some feedback: The drill style approach seems helpful, but needing the variable names to exactly match threw me off. It would be great if we could _relax_ this constraint via a toggle for drill mode. "Precision Mode" feels like it's misnamed; when it's toggled on it feels more like a "guided mode" since chunks of boilerplate are written for you. It would be great if exiting Drill mode remembered choices, such as what portions were selected.

Ended up deciding to buy a subscription, but looks like the site still says "82% claimed" and "17 spots left". I appreciate the one-time purchase model, but feel that it's a bit shady of a tactic.

replies(1): >>46217717 #
1. arein3 ◴[10 Dec 25 13:53 UTC] No.46217717[source]▶
still 17 spots left

I understand that it's a sales tactic, but it's lying to your users worth it?