Devbrainiac - DSA & System Design Interview Prep Sheets

Prepare smarter for your next coding interview with Devbrainiac - your ultimate resource for high-quality DSA and System Design prep sheets.

Devbrainiac brings together the most popular interview prep sheets - including Striver's DSA Sheet, A2Z DSA Sheet and comprehensive System Design resources - all organized in a structured, beginner-to-advanced format.

From mastering fundamental topics like arrays, strings, Linked List, stack, queue, trees, matrix and graphs to tackling advanced concepts such as dynamic programming and object-oriented design, you will find everything you need to build a solid foundation and confidently solve complex coding problems.

For experienced candidates, our System Design section dives deep into both Low-Level Design (LLD) and High-Level Design (HLD), featuring real-world system design challenges. These include scalable architectures, messaging systems and other practical problems frequently asked in interviews at top tech companies like Amazon, Google and Meta.

🧠 Why Devbrainiac Sheets?
  • ✅ Curated by Experts - Only the most impactful, interview-tested sheets
  • ✅ FAANG-Focused - Questions that reflect real interviews
  • ✅ Covers All Levels - Beginner to advanced
  • ✅ All in One Place - Clean, organized and easy to navigate
📚 What You'll Find Inside
  • 📌 A2Z DSA Sheet - Structured topic-wise content, ideal for beginners to build a strong foundation.
  • 📌 Striver's DSA Sheet - One of the most popular DSA preparation paths, covering all major topics.
  • 📌 DSA Problem Sheets - High-frequency coding challenges
  • 📌 System Design Sheets - Real-world design scenarios
  • 📌 FAANG Interview Sheets - Google, Meta, Amazon prep guides

📌 DSA Interview Prep Sheets

DSA 80 Coding Problem sheets

This is the list of 80 last moment DSA interview coding problems that are asked in major company interviews.

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DSA 150 Coding Problem sheets

This is the list of 150 DSA interview coding problems that are asked in major company interviews.

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Striver's A2Z DSA sheets

This is the list of Striver's interview coding problems that are asked in major company interviews.

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📌 System Design Interview Prep Sheets

Low-Level Design Sheet

Covers object-oriented principles and LLD patterns used in interviews.

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High-Level Design Sheet

Explore scalable architecture designs like URL shorteners, messengers, etc.

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System Design Scenarios

Real-world problems frequently asked in FAANG system design rounds.

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