LeetPattern trains you to recognize the algorithm in seconds. Daily 3-minute drills, step-by-step animated visualizations, and spaced repetition — built for engineers who'd rather understand than memorize.
The problem
There are 2,000+ LeetCode problems. You can't memorize them all — and under interview pressure, you won't recall the ones you did.
The engineers who crack FAANG interviews don't have a better memory. They have a better mental model. They see a problem and think: “sorted array, looking for a boundary — Binary Search.”
That recognition is a trainable skill. It only takes 11 patterns to cover the vast majority of what you'll face.
How it works
A real interview-style question appears. You have about 90 seconds to think before answering. No hints, no code.
Pick the algorithm, data structure, and time complexity. Pure pattern recognition under light pressure — exactly how interview day feels.
The clues in the problem light up. You see why the pattern fits and which signals to look for next time.
The patterns
Each pattern includes animated visualizations, trap explanations, and reference code in Java and Python.
Features
Five questions. Three minutes. Build pattern recognition with consistent, focused reps — not marathon grinding sessions.
You identify the algorithm, data structure, and complexity before seeing the answer. Struggle is the point — that's when memory forms.
Every missed pattern gets queued for smart review. The algorithm surfaces your weakest questions at the right interval.
Watch Binary Search cut the array in half. See BFS expand level by level. Step-by-step visualizations make mechanics stick.
Filter drills by your target company. Practice exactly the patterns that show up in Meta, Google, or Amazon interviews.
First Spark, Sharp Eye, Pattern Week, Half Century. Progress you can see keeps you showing up every day.
Made with care for engineers who'd rather spot the pattern than remember the answer.
Pricing
Premium pays for itself the first time you nail a pattern you'd have missed.
Start today
Download LeetPattern and start your first drill. Free, no account required on day one.