Stop grinding 500 LeetCode problems. Learn the 15 core algorithm patterns and solve anything.
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Most developers grind problems one by one, memorizing solutions they'll forget in a week. When the interview comes, a slightly different problem — and you're stuck.
The issue isn't effort. It's approach. There are only ~15 fundamental patterns behind thousands of problems. Learn the patterns — and you can solve problems you've never seen before.
Interactive visual explanation of each algorithm pattern. Step through the algorithm, see how pointers move, how data transforms.
Apply the pattern to curated problems. Write code, run tests, get instant feedback. Build the muscle memory.
Our memory engine schedules reviews at optimal intervals. Patterns stay in long-term memory, not just for the next session.
~15 fundamental patterns with theory, code templates, common mistakes, and curated problem sets.
Interactive step-by-step animations for every pattern. See how the algorithm works, not just read about it.
Science-based memory engine. Review patterns at optimal intervals to move knowledge to long-term memory.
Write and run code directly in the browser. Test against curated cases. Multiple language support.
Given a problem, identify the pattern. Train the skill that matters most in real interviews.
Radar chart of your skills across all patterns. See strengths, gaps, and memory decay over time.
Join developers who chose patterns over problem count.
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