Interview Question Bank
Access real interview questions from top companies and master them with AI-driven practice.
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Implement a Queue using Stacks
Data Structures
Asked at Uber
Easy
22.2K Users PracticedPractice with This Question
106.4K views•Recently added
Trie (Prefix Tree) Implementation
Data Structures
Asked at Google
Medium
90.4K Users PracticedPractice with This Question
43.5K views•Recently added
Invert Binary Tree
Data Structures
Asked at Netflix
Easy
37K Users PracticedPractice with This Question
138.3K views•Recently added
Merge Two Sorted Linked Lists
Data Structures
Asked at Stripe
Easy
117.5K Users PracticedPractice with This Question
20.8K views•Recently added
Design a File System (Trie variant)
Data Structures
Asked at Salesforce
Medium
17.7K Users PracticedPractice with This Question
59.4K views•Recently added
Implement a Hash Map from Scratch
Data Structures
Asked at Airbnb
Hard
50.5K Users PracticedPractice with This Question
84.4K views•Recently added
Lowest Common Ancestor of a Binary Tree
Data Structures
Asked at Apple
Medium
71.8K Users PracticedPractice with This Question
93.9K views•Recently added
Level Order Traversal of a Binary Tree
Data Structures
Asked at Amazon
Easy
79.8K Users PracticedPractice with This Question
66.1K views•Recently added
Binary Tree Right Side View
Data Structures
Asked at Uber
Medium
56.2K Users PracticedPractice with This Question
28.7K views•Recently added
Implement a Stack using Queues
Data Structures
Asked at Tesla
Medium
24.4K Users PracticedPractice with This Question