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Home Interview QuestionsGoogle

Google Interview Questions

87 questions across 5 categories

Algorithms

View all Algorithms

Merge Intervals

Evaluate Division (Union-Find)

Serialize and Deserialize Binary Tree

Implement Trie (Prefix Tree)

Two Sum

Minimum Genetic Mutation

Design HashMap

Flatten Binary Tree to Linked List

Max Points on a Line

Generate Parentheses

Maximum Profit in Job Scheduling

Boyer-Moore Majority Vote Algorithm

Sliding Window Maximum

Sum of Two Integers

Add and Search Word - Data structure design

Maximum XOR of Two Numbers in an Array

Behavioral

View all Behavioral

Defining Your Own Success Metrics

Why You Are Leaving Your Current Role

Most Challenging Technical Problem

Ethical Dilemma at Work

Leading a Technical Discussion

Handling Project Cancellation

Finding a Technical Champion

Leadership without authority

Influencing Product Vision

Why should we hire you?

Biggest Technical Risk Taken

Leading an Incident Response Team

Handling Team Disengagement

Managing Team Technical Vision

Commitment to Diversity and Inclusion

Impact of User Feedback

What are your greatest strengths?

Data Structures

View all Data Structures

Design a Max Heap

Kth Largest Element in an Array (Quickselect/Heap)

Path Sum (Binary Tree)

Binary Tree Zigzag Level Order Traversal

Maximum Depth of Binary Tree

Trie (Prefix Tree) Implementation

Design a Least Frequently Used (LFU) Cache

Design a Set with $O(1)$ `insert`, `remove`, and `getRandom`

Design a Simple LRU Cache using Python/Java built-ins

Balanced Parentheses (Generative)

Flatten a Multilevel Doubly Linked List

Design a Time Map (TreeMap/Sorted Map)

Convert BST to Greater Tree

Find the Middle of a Linked List (No length)

Shortest Unsorted Continuous Subarray (Array/Pointers)

Reverse a Linked List

Find the Root of N-ary Tree (Graph Traversal)

Delete Node in a Linked List (O(1) trick)

Path Sum III (Path in Tree)

Remove Invalid Parentheses (BFS)

Implement an LRU Cache

Product Strategy

View all Product Strategy

Product Strategy: Addressing Market Saturation

Design a Feature to Increase Adoption of Two-Factor Authentication (2FA)

Metrics for User-Generated Content Quality

Prioritization: Efficiency vs. Feature Velocity

Should Google enter the Food Delivery Market?

Design a Parental Control Feature for YouTube Kids

Product Vision for Google Workspace in 2030

Improve the Discovery of Niche Content on YouTube

Competitive Strategy: AWS vs. Google Cloud Platform (GCP)

Design the First 90 Days of a New PM Role

Improve the Google Maps Commute Experience

Should Google sunset a profitable but aging product?

Design a System for Data Transparency

Should Google integrate Gemini (or similar AI) into Google Search?

System Design

View all System Design

Design a Simple Search Engine

Design a Highly Available DNS Service

Design a Distributed Unique ID Generator (Snowflake)

Design the Twitter News Feed

Design a Distributed Cron/Scheduler Service

Design a Distributed Caching System (Memcached)

Design a News Aggregator (Google News)

Design a Distributed File Locking System

Design a Collaborative Editing System (Google Docs)

Design a System for A/B Testing

Design a URL Shortening Service (TinyURL)

Design a Geo-Distributed Leaderboard with Strong Consistency

Design a Public High-Scores Leaderboard

Design a Video Recommendation Engine (Short Form)

Design a Web Crawler

Design a System to Detect Plagiarism

Design a System for Distributed Tracing (Jaeger/Zipkin)

Design a Distributed Counter Service

Design a Geolocation Service (IP to Location)

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