Common Interview Questions and Answers
Practice the most frequently asked interview questions with expert answers, approach tips, and AI-powered feedback.
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Open a company hub to see the questions candidates report most often there.
24.3K views•7mo ago
Shortest Path Visiting All Nodes
Algorithms
Asked at Airbnb
Hard
20.7K Users PracticedPractice with This Question
124.2K views•7mo ago
Closest Binary Search Tree Value
Algorithms
Asked at Spotify
Easy
105.6K Users PracticedPractice with This Question
138.1K views•7mo ago
Evaluate Division (Union-Find)
Algorithms
Asked at Google
Medium
117.4K Users PracticedPractice with This Question
37.5K views•7mo ago
Maximum Swap
Algorithms
Asked at Amazon
Medium
31.9K Users PracticedPractice with This Question
143.2K views•7mo ago
Split Array Largest Sum
Algorithms
Asked at Microsoft
Hard
121.7K Users PracticedPractice with This Question
63.2K views•7mo ago
Design a URL Shortening Service (TinyURL)
System Design
Asked at Google
Easy
53.7K Users PracticedPractice with This Question
126.2K views•7mo ago
Design a Chat System (WhatsApp/WeChat)
System Design
Asked at Meta
Hard
107.2K Users PracticedPractice with This Question
31K views•7mo ago
Design a Global Rate Limiter
System Design
Asked at Stripe
Medium
26.4K Users PracticedPractice with This Question
146.8K views•7mo ago
Design a Key-Value Store (Distributed Cache)
System Design
Asked at Amazon
Hard
124.8K Users PracticedPractice with This Question
100.5K views•7mo ago
Design the Twitter News Feed
System Design
Asked at Google
Medium
85.4K Users PracticedPractice with This Question