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Welcome to the Go Interview Practice repository! Master Go programming and ace your technical interviews with our interactive coding challenges.

Our comprehensive web interface provides everything you need to practice and master Go programming:

Beautiful leaderboard showcasing top developers with challenge completion indicators, rankings, and achievements

Our most accomplished Go developers, ranked by number of challenges completed:

Note: The data below is automatically updated by GitHub Actions when challenge scoreboards change.

🏅	Developer	Solved	Rate	Achievement	Progress
🥇	odelbos	28/30	93.3%	Master	✅✅✅✅✅✅✅✅✅✅✅⬜✅✅⬜ ✅✅✅✅✅✅✅✅✅✅✅✅✅✅✅
🥈	y1hao	21/30	70.0%	Master	✅✅✅✅✅✅✅✅⬜✅⬜⬜✅✅⬜ ✅✅✅✅✅✅✅✅⬜⬜⬜✅⬜⬜✅
🥉	JackDalberg	20/30	66.7%	Master	✅✅✅✅✅✅✅✅⬜✅⬜⬜✅✅⬜ ⬜✅✅✅✅✅✅✅⬜⬜⬜✅⬜⬜✅
4	mick4711	20/30	66.7%	Master	✅✅✅✅✅✅✅⬜⬜✅⬜⬜✅✅⬜ ✅✅✅✅✅✅✅✅⬜⬜⬜✅⬜⬜✅
5	Gandook	15/30	50.0%	Expert	✅✅✅⬜⬜✅✅⬜⬜✅⬜⬜⬜⬜⬜ ⬜✅✅✅⬜✅✅✅✅✅⬜✅⬜⬜⬜
6	ashwinipatankar	15/30	50.0%	Expert	✅✅✅⬜✅✅✅⬜⬜✅⬜⬜✅⬜⬜ ⬜✅✅✅⬜✅✅✅⬜⬜⬜✅⬜⬜⬜
7	KhaledMosaad	14/30	46.7%	Advanced	✅✅✅⬜⬜✅⬜⬜⬜⬜⬜⬜✅⬜⬜ ⬜✅✅✅⬜✅✅✅⬜⬜✅✅⬜⬜✅
8	RezaSi	14/30	46.7%	Advanced	✅✅✅✅✅✅⬜⬜⬜✅⬜⬜✅⬜⬜ ⬜✅✅✅⬜✅✅✅⬜⬜⬜⬜⬜⬜⬜
9	PolinaSvet	12/30	40.0%	Advanced	✅✅✅✅✅✅✅⬜⬜✅⬜⬜✅⬜⬜ ⬜⬜✅⬜⬜✅✅⬜⬜⬜⬜⬜⬜⬜⬜
10	MYK12397	11/30	36.7%	Advanced	⬜✅✅⬜✅✅✅⬜⬜⬜⬜⬜⬜⬜⬜ ⬜✅✅✅⬜✅⬜⬜✅⬜⬜⬜⬜⬜✅

Updated automatically based on 30 available challenges

• Total Challenges Available: 30
• Active Developers: 57
• Most Challenges Solved: 28 by odelbos

Master Go packages through hands-on challenges! Each package offers a structured learning path with real-world scenarios.

Note: The data below is automatically updated by GitHub Actions when package challenge scoreboards change.

🏅	Developer	Total Solved	Packages	Achievement	Challenge Distribution
🥇	RezaSi	3	3 pkgs	🚀 Package Intermediate	cobra: 1 • gin: 1 • gorm: 1
🥈	ashwinipatankar	3	1 pkg	🚀 Package Intermediate	cobra: 3
🥉	odelbos	1	1 pkg	🌱 Package Beginner	gin: 1

• Total Package Challenges Available: 13

• Active Package Learners: 3

• Available Packages: 3 (cobra, gin, gorm)

• Most Package Challenges Solved: 3 by RezaSi

• Interactive Web UI - Code, test, and submit solutions in your browser
• Automated Testing - Get immediate feedback on your solutions
• Automated Scoreboards - Solutions are automatically scored and ranked
• Performance Analytics - Track execution time and memory usage for your solutions
• Comprehensive Learning - Each challenge includes detailed explanations and resources
• Progressive Difficulty - From beginner to advanced Go concepts

Important: You must fork this repository first before cloning, otherwise you won't be able to push your solutions or create pull requests!

# 1. First, fork this repository on GitHub
#    Go to https://github.com/RezaSi/go-interview-practice
#    Click the "Fork" button in the top-right corner

# 2. Clone your forked repository (replace 'yourusername' with your GitHub username)
git clone https://github.com/yourusername/go-interview-practice.git
cd go-interview-practice

# 3. Start the web interface
cd web-ui
go run main.go

# 4. Open http://localhost:8080 in your browser

After solving challenges and submitting solutions:

• Your solutions will be automatically saved to your local repository
• Follow the provided Git commands to commit and push your changes
• Create a pull request to contribute your solutions back to the main project

Want to get started instantly without setting up anything locally? Use GitHub Codespaces!

1. Fork this repository (if you haven't already)
2. Open in Codespaces: Click the green "Code" button on your forked repository, then select "Codespaces" tab
3. Create Codespace: Click "Create codespace on main"
4. Start the Web UI: Once the codespace loads, open a terminal and run:

   cd web-ui
   go run main.go

5. Access the Web UI: Click on the "Ports" tab in the bottom panel, then click the "Open in Browser" button next to port 8080

Benefits of using Codespaces:

• No local setup required
• Pre-configured Go environment
• Full VS Code experience in the browser
• Automatic port forwarding for the web UI
• All dependencies pre-installed
• Works on any device with a browser

# 1. Fork the repository first (see step 1 above)
# 2. Clone your fork and set up a challenge workspace
git clone https://github.com/yourusername/go-interview-practice.git
cd go-interview-practice
./create_submission.sh 1  # For challenge #1

# 3. Implement your solution in the editor of your choice

# 4. Run tests
cd challenge-1
./run_tests.sh

Each challenge has its own scoreboard that tracks:

• Successful submissions by user
• Execution time rankings
• Code efficiency metrics
• Completion dates

View global and per-challenge scoreboards in the Web UI to compare your solutions with others.

Perfect for those new to Go or brushing up on fundamentals

• Challenge 1: Sum of Two Numbers
• Challenge 2: Reverse a String
• Challenge 3: Employee Data Management
• Challenge 6: Word Frequency Counter
• Challenge 18: Temperature Converter
• Challenge 21: Binary Search Implementation
• Challenge 22: Greedy Coin Change

For developers familiar with Go who want to deepen their knowledge

• Challenge 4: Concurrent Graph BFS Queries
• Challenge 5: HTTP Authentication Middleware
• Challenge 7: Bank Account with Error Handling
• Challenge 10: Polymorphic Shape Calculator
• Challenge 13: SQL Database Operations
• Challenge 14: Microservices with gRPC
• Challenge 16: Performance Optimization
• Challenge 17: Interactive Debugging Tutorial
• Challenge 19: Slice Operations
• Challenge 20: Circuit Breaker Pattern
• Challenge 23: String Pattern Matching
• Challenge 27: Go Generics Data Structures
• Challenge 30: Context Management Implementation

Challenging problems that test mastery of Go and computer science concepts

• Challenge 8: Chat Server with Channels
• Challenge 9: RESTful Book Management API
• Challenge 11: Concurrent Web Content Aggregator
• Challenge 12: File Processing Pipeline
• Challenge 15: OAuth2 Authentication
• Challenge 24: Dynamic Programming - Longest Increasing Subsequence
• Challenge 25: Graph Algorithms - Shortest Path
• Challenge 26: Regular Expression Text Processor
• Challenge 28: Cache Implementation with Multiple Eviction Policies
• Challenge 29: Rate Limiter Implementation

Browse challenges through the web UI or in the code repository. Each challenge includes:

• Detailed problem statement
• Function signature to implement
• Comprehensive test cases
• Learning resources

Write code that solves the challenge requirements and passes all test cases.

Use the built-in testing tools to validate your solution, then refine it for:

• Correctness
• Efficiency
• Code quality

Submit your passing solution to be added to the scoreboard:

• Your solution is automatically tested and scored
• Execution time and resource usage are recorded
• Your solution is ranked among other submissions
• Access detailed performance metrics to optimize further

Review the learning materials to deepen your understanding of the concepts used.

We welcome contributions! You can contribute in several ways:

Submit Solutions:

• Solve existing classic or package challenges
• Submit your solutions via pull request

Add New Challenges:

• Classic Challenges: Algorithm and data structure problems
• Package Challenges: Framework-specific practical applications (Gin, Cobra, GORM, etc.)

Quick Steps:

1. Fork the repository
2. Choose challenge type (classic or package-based)
3. Follow our template structure
4. Submit a pull request

See CONTRIBUTING.md for detailed guidelines on both challenge types.

Help keep Go education free and accessible! Your sponsorship enables me to create more challenges, maintain the platform, and support the community.

🥉 $5/month - Go Supporter

• Sponsor badge on your profile
• Early access to new challenges (24 hours before public release)
• Priority support and your name in contributors section

🚀 $25/month - Go Package Champion

• All supporter benefits plus:
• Custom package tutorial creation with 4-6 progressive challenges
• Ongoing maintenance when your package updates
• Your package featured prominently on the platform

💎 $200/month - Premium Business Sponsor

• All previous benefits plus:
• Company logo placement on README, homepage, and challenge pages
• Monthly social media mentions and priority partnership
• Quarterly strategy calls and recruitment opportunities

☕ $10 - Buy Me a Coffee (One-time)

• Show appreciation for the free educational content
• Support continued development with a simple coffee

💎 $100 - Package Challenge Creation (One-time)

• Complete learning path for your Go package (one-time creation, no ongoing updates)

🎯 Become a Sponsor

Your support helps maintain 30+ challenges, the web platform, and keeps everything free for the community!

Thank you to our premium sponsors who make this project possible!

Interested in premium sponsorship? Contact us to feature your company logo here and on our platform!

This project is licensed under the MIT License - see the LICENSE file for details.

Happy Coding! 💻