Decode the Coding Interview in Ruby: Real-World Examples

The ultimate guide to Ruby interviews. Developed by FAANG engineers, practice with real-world interview questions from top companies. Prep faster and get interview-ready in just a few hours.

Beginner

389 Lessons

21h

Certificate of Completion

The ultimate guide to Ruby interviews. Developed by FAANG engineers, practice with real-world interview questions from top companies. Prep faster and get interview-ready in just a few hours.

AI-POWERED

Mock Interview

Explanations

AI-POWERED

Mock Interview

Explanations

This course includes

175 Playgrounds

175 Challenges

This course includes

175 Playgrounds

175 Challenges

Course Overview

Preparing for coding interviews has become a daunting task. Trying to solve enough practice questions and remember solutions can feel impossible. Fortunately, the best way to be successful in the coding interview is not to just grind through problems. The best way is to develop the skills to break down a new problem and deploy the right tools to come up with a solution. That’s why in this course, you’ll prepare for coding interviews by tackling real world problems faced by tech companies. When you solve r...Show More

What You'll Learn

Get hands on practice in preparing for coding interviews by tackling real world problem.

Prepare for interviews by solving the frequently asked coding question at companies like FAANG.

Perform an in-depth analysis of commonly asked coding interview problems.

Learn to map real-world problems to actual interview questions.

What You'll Learn

Get hands on practice in preparing for coding interviews by tackling real world problem.

Course Content

✨Getting Started

Get familiar with coding interview essentials, tackling real-world problems, and key patterns.

Course Overview

Who Should Take This Course?

Netflix

Walk through Netflix feature implementations, optimizing search, recommendations, and user session handling.

Google Calendar

Solve problems in Google's calendar app, enhancing scheduling, conflict management, and productivity features.

Project Description for Google Calendar

Feature #1: Find Meeting Rooms

Feature #2: Show Busy Schedule

Feature #3: Check if Meeting is Possible

Feature #4: Schedule a New Meeting

Feature #5: Find Common Meeting Times

Feature #6: Find Two Sets of Consecutive Days

Feature #7: Longest Busy Period

What Did We Learn?

DIY: Find Interval Sets

DIY: Merge Intervals

DIY: My Calendar

DIY: Insert Interval

DIY: Interval Lists Intersection

DIY: Employee Free Time

DIY: Find Two Non-Overlapping Subarrays Each with Target Sum

DIY: Longest Consecutive Sequence

Stock Scraper

13 Lessons

Follow the process of designing a stock scraper, DOM traversal, and analyzing stock data efficiently.

UBER

18 Lessons

Master the steps to optimize Uber's driver allocation, route planning, fares, and carpool options.

Amazon

34 Lessons

Step through Amazon’s coding challenges, covering recommendations, logistics, price filtering, and more.

Zoom

12 Lessons

Get started with developing Zoom features and DIY coding tasks for interview prep.

10.

Plagiarism Checker

6 Lessons

Go hands-on with building a plagiarism checker, detecting code similarities and subsequences.

11.

Network

27 Lessons

Grasp the fundamentals of network structures, protocols, and efficient algorithms for robust implementations.

12.

Cyber Security

12 Lessons

Take a closer look at developing encryption schemes, verifying integrity, and solving cyber security problems.

13.

Operating System

35 Lessons

Focus on OS concepts like process scheduling, memory management, file handling, and system recovery.

15.

Boggle

6 Lessons

Try out Boggle project development, mastering search algorithms and grid-based word search.

16.

Scrabble 2.0

6 Lessons

Walk through building Scrabble 2.0 with word transformation algorithms and interview problem patterns.

17.

Game

9 Lessons

Go hands-on with game development features and interview-driven problem-solving techniques.

18.

Stocks

19 Lessons

Grasp the fundamentals of enhancing stock trading systems with practical solutions and techniques.

19.

Computational Biology

21 Lessons

Solve problems in computational biology, DNA mutation, virus detection, protein location, and similarity measures.

20.

Cellular Operator(AT&T)

20 Lessons

Implement algorithms for optimizing cellular networks, including signal strength, coverage areas, and user management.

21.

Twitter

17 Lessons

Master the steps to developing Twitter-like features and solving programming challenges for coding interviews.

22.

Trees

8 Lessons

Learn how to use various techniques to manipulate and traverse binary trees effectively.

23.

Miscellaneous

14 Lessons

Walk through diverse real-world coding challenges and their optimal algorithmic solutions.

24.

Conclusion

1 Lesson

Explore career development with additional resources on behavioral interviews and data structures.

Trusted by 1.4 million developers working at companies

Anthony Walker

@_webarchitect_

Evan Dunbar

ML Engineer

Carlos Matias La Borde

Software Developer

Souvik Kundu

Front-end Developer

Vinay Krishnaiah

Software Developer

Eric Downs

Musician/Entrepeneur

Kenan Eyvazov

DevOps Engineer

Souvik Kundu

Front-end Developer

Eric Downs

Musician/Entrepeneur

Anthony Walker

@_webarchitect_

Evan Dunbar

ML Engineer

Hands-on Learning Powered by AI

See how Educative uses AI to make your learning more immersive than ever before.

Instant Code Feedback

Evaluate and debug your code with the click of a button. Get real-time feedback on test cases, including time and space complexity of your solutions.

AI-Powered Mock Interviews

Put your skills to the test in a simulated interview setting. Receive personalized feedback based on your performance. Available in Premium & Premium Plus plans.

Adaptive Learning

At various checkpoints throughout Educative courses, you will be prompted to take a quick assessment. Receive a condensed curriculum tailored to your strengths and skill gaps.

Explain with AI

Select any text within any Educative course, and get an instant explanation — without ever leaving your browser.

AI Code Mentor

AI Code Mentor helps you quickly identify errors in your code, learn from your mistakes, and nudge you in the right direction — just like a 1:1 tutor!