AlgoDrill – Interactive drills to stop forgetting LeetCode patterns
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.…
In plain words
AlgoDrill is an interactive coding practice tool that helps programmers retain algorithmic patterns through active recall drills. It converts problems from the NeetCode 150 collection into line-by-line reconstruction exercises paired with first-principles explanations. Problems are organized by pattern categories like sliding window, two pointers, and dynamic programming, allowing users to focus on their weak areas. The platform is designed for job candidates preparing for technical interviews who want to move beyond one-time problem solving to building reliable pattern recognition and confident code implementation.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
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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