FAANG Question Bank
High-frequency algorithmic and architectural questions tested at Google, Amazon, and Microsoft.
Detailed Derivations
Step-by-step mathematical proofs, edge cases, and Big-O time and space complexity analysis.
STAR Method Playbook
Proven behavioral frameworks to ace leadership principles and cultural fit rounds.
Flashcards & Cheatsheets
Rapid revision summaries for core CS fundamentals, SQL indexing, and networking.
Curated High-Frequency Problems
Full Problem: Explain Floyd's Cycle-Finding Algorithm (Tortoise and Hare) and how to determine the exact node where the cycle begins.
Recommended Optimal Solution & Breakdown
Use two pointers: slow moves 1 step, fast moves 2 steps. If they meet, a cycle exists. To find the starting node, reset slow to the head and advance both pointers by 1 step until they meet again at the loop entrance. Time: O(N), Space: O(1).
Master Every Stage of the Tech Hiring Pipeline
Round 1: DSA & Problem Solving
Live Coding Sandbox
Arrays, Linked Lists, Trees, Dynamic Programming, and Graph Traversals with O(N) constraints.
Round 2: System Architecture
High-Level & Low-Level Design
Scalable microservices, Redis caching, database sharding, rate limiting, and event streaming.
Round 3: STAR Behavioral
Leadership & Culture Fit
Structured storytelling, conflict resolution, technical trade-offs, and salary negotiations.