Google Interview Preparation (original) (raw)

Last Updated : 11 Feb, 2026

Google interview preparation is all about mastering strong fundamentals, structured problem-solving, and consistent practice. With the right preparation strategy, cracking Google’s SDE interviews becomes a systematic process rather than a stressful challenge.

This preparation approach helps you:

• Build a solid foundation in data structures and algorithms
• Practice Google-level coding problems with optimized solutions
• Develop the ability to think out loud and explain your logic clearly
• Reduce interview anxiety through mock-style practice and real experiences

Strengthen Core Concepts

These popular articles cover fundamental data structures, algorithms, and problem-solving techniques that are frequently tested in Google interviews. Each topic is explained with clear logic, optimized solutions, and practical examples, helping you develop the analytical mindset Google looks for in candidates.

• The collection spans across bit manipulation, arrays, matrices, trees, backtracking, dynamic programming, and graph-based problems, making it ideal for both revision and in-depth learning.
• You can check out DSA Tutorialand Google Topics for Interview Preparation

**Popular Coding Problems

This section includes some of the most commonly asked coding problems in Google interviews, designed to test your understanding of arrays, strings, hashing, trees, graphs, and system design basics.

Solving these problems will help you:

• Improve problem decomposition skills
• Write optimized and scalable code
• Gain confidence in real-time coding interviews

These challenges closely mirror actual Google interview questions, making them ideal for mock practice and revision. For reference below are some common question but for detail you can visit: Google SDE Sheet

**Frequently Practiced Problems:

• Subarray with given sum
• Maximum Index
• Find median in a stream
• Finding the numbers
• Word Boggle
• Connect Nodes at Same Level
• The Celebrity Problem
• LRU Cache
• Count BST nodes that lie in a given range
• Find triplets with zero sum
• Sum of bit differences among all pairs
• Modular Exponentiation (Power in Modular Arithmetic)
• Sum of bit differences among all pairs
• In place rotate square matrix by 90 degrees | Set 1
• Backtracking | Set 7 (Sudoku)
• Meta Strings (Check if two strings can become same after a swap in one string)
• Find largest word in dictionary by deleting some characters of given string
• Count of strings that can be formed using a, b and c under given constraints
• Count BST nodes that lie in a given range
• Sum of all the numbers that are formed from root to leaf paths
• Merge two BSTs with limited extra space
• Find all triplets with zero sum
• The Celebrity Problem
• Dynamic Programming | Set 31 (Optimal Strategy for a Game)
• Given a sorted dictionary of an alien language, find order of characters
• Check if a Binary Tree contains duplicate subtrees of size 2 or more

**Recent Interview Experiences

Reading real interview experiences gives you an inside look into Google’s hiring process. This section shares first-hand experiences from candidates across internships, SWE roles, and senior engineering positions.

You’ll learn about:

• Interview rounds and difficulty levels
• Types of questions asked
• Common mistakes to avoid
• Preparation strategies that worked

Interview Experiences to Read:

• Google Summer of Code 2024 Experience
• Count number of times given sentence can be fitted on screen
• Google SWE-3 to Senior SWE: Roles, Responsibilities and Salaries
• Google Work Experience For "Build With AI"
• Google Interview Experience
• Google SWE-2 to SWE-3: Roles, Responsibilities, Salaries
• Google Interview Experience for SWE Internship 2023 (Off-Campus)
• Google Interview Experience for SWE Intern
• My Career Journey through Internship Rejection History
• Google Interview Experience For Application Engineering Summer Internship (2024)

Also Read:

• Most recent Problems
• Google Interview Experiences