Master Coding Interviews
One Pattern at a Time

Get a daily PDF with 1 Pattern explained &3 related problems delivered to your inbox. Spend 5 minutes a day to Master 90+ problems monthly!

Why PrepLetter Works

No more hunting for problems or explanations. Everything you need, delivered daily.

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1 Pattern Daily

Master one DSA pattern at a time with clear explanations, examples, and when to use it in interviews.

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3 Related Problems

Practice 3 carefully selected LeetCode-style problems that reinforce the daily pattern with step-by-step solutions.

0 Time Waste

No searching, no browsing. Just open your email and start learning. Everything is curated and ready to consume.

Benefits of Daily Practice

Consistency is key to mastering technical interviews

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Pattern Recognition

Learn to recognize problem patterns that can be applied across similar challenges

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Consistent Improvement

Daily practice builds a habit of continuous learning and skill development

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Confidence Building

Gain confidence as you master problem-solving techniques across different contexts

90+

Problems per month
just by reading emails

3-4

Minutes daily
investment

30+

DSA patterns
covered

100%

Interview-focused
content

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