What is Blind 100?
Blind 100 is a free DSA interview tracker with 100 curated LeetCode problems drawn from Striver's A2Z sheet, Blind 75, NeetCode 150, and Grind 75 — a company-wise question bank with 3,200+ problems tagged by frequency across 635 companies including Google, Amazon, Meta, and Microsoft — and 217 Applied AI & AI Engineering interview questions. Track your progress across devices with Google Sign-in.
3,200+ Company-Wise Questions · 635 Companies
Every problem tagged with frequency and recency data — know exactly what your target company asks.
100 DSA Problems · 14 Topics
Every problem is hand-picked for maximum interview coverage — 10 Easy, 64 Medium, 26 Hard.
217 Applied AI Questions · 7 Categories
The most comprehensive Applied AI & AI Engineering interview bank — covering RAG, multi-agent systems, LLMOps, evals, system design, and live coding.
Frequently Asked Questions
What is Blind 100?+
Blind 100 is a free, curated collection of 100 essential LeetCode DSA problems for coding interview preparation, 3,200+ company-wise LeetCode questions tagged by frequency across 635 companies, and 217 Applied AI & AI Engineering interview questions. It covers topics from Arrays to Dynamic Programming, company-specific problems for Google, Amazon, Meta, Microsoft, and more — all with progress tracking and cross-device sync.
How is Blind 100 different from Striver A2Z sheet or Blind 75?+
Blind 100 combines the best problems from Striver A2Z sheet, Blind 75, NeetCode 150, and Grind 75 into a single tracker. What sets it apart is the company-wise question bank with 3,200+ problems tagged by frequency and recency across 635 companies, 217 Applied AI questions, editorial solutions, difficulty filters, and free cross-device progress sync.
What is the difference between Blind 100 and Blind 75?+
Blind 75 is the original curated list of 75 LeetCode problems for interview prep. Blind 100 expands on it with 100 carefully selected DSA problems, a massive company-wise question bank covering 635 companies with frequency data, 217 Applied AI questions, editorial solutions, difficulty filters, and free cross-device progress tracking via Google Sign-in.
Does Blind 100 include company-wise LeetCode problems?+
Yes — this is one of the biggest features. Blind 100 includes 3,200+ company-wise LeetCode problems across 635 companies including Google (2,192 problems), Amazon (1,862), Microsoft (1,301), Meta (1,300), Bloomberg (1,112), Apple, Uber, TikTok, Oracle, Goldman Sachs, Adobe, and many more. Each problem is tagged with frequency and recency data so you can focus on what your target company actually asks.
What Applied AI and AI Engineering topics are covered?+
The Applied AI section covers 217 questions across 7 categories: Core LLM & Transformer Architecture (35), Advanced RAG & Retrieval (40), Agentic Workflows & Multi-Agent Systems (35), Evaluations & LLMOps (35), Live Coding Challenges (30), AI System Design (30), and Take-Home Assignments (12).
Is Blind 100 free to use?+
Yes, Blind 100 is completely free. You can browse all 100 DSA problems, 3,200+ company-wise questions, and 217 Applied AI questions without signing in. Sign in with Google to save your progress and sync it across devices.