NeetCode 150 Java Solutions

This repository contains Java implementations of the problems from the NeetCode 150 — a curated list of 150 essential data structures and algorithms problems.

The goal is to provide clear, well-documented, and efficient solutions for each proble

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📚 Table of Contents

• About
• Project Structure
• How to Use
• How to Contribute
• License
• Acknowledgements

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📖 About

NeetCode 150 is a popular set of coding interview questions covering a wide range of topics including:

• Arrays
• Linked Lists
• Trees
• Hash Maps
• Graphs
• Dynamic Programming
• Heaps
• Tries
• Backtracking
• Sliding Window

This project provides:

• ✅ Java solutions for each problem
• 📝 Explanations and inline comments
• 🧪 Unit tests for correctness

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📁 Project Structure

neetcode150/
├── pom.xml                      # Maven configuration
├── src/
│   ├── main/
│   │   └── java/
│   │       └── com/neetcode/
│   │           └── App.java     # Main application (entry point)
│   ├── test/
│   │   └── java/
│   │       └── com/neetcode/
│   │           └── AppTest.java # Unit tests
│   └── README.md                # Project documentation
└── target/                      # Compiled files (auto-generated)

How to Use

Prerequisites

• Java 8 or higher
• Maven

Build and Run

1. Clone the repository:

   git clone https://github.com/Falasefemi2/neetcode150.git
   cd neetcode150

2. Compile the project:

   mvn compile

3. Run tests:

   mvn test

4. Run the main application (if applicable):

   mvn exec:java -Dexec.mainClass="com.neetcode.App"

Adding New Solutions

• Add your solution in the appropriate package under src/main/java/com/neetcode/.
• Write corresponding unit tests in src/test/java/com/neetcode/.

How to Contribute

Contributions are welcome! To contribute:

1. Fork the repository.
2. Create a new branch: git checkout -b feature/your-feature-name
3. Add your solution and tests.
4. Commit your changes: git commit -m "Add solution for [problem name]"
5. Push to your fork: git push origin feature/your-feature-name
6. Open a pull request.

License

This project is licensed under the MIT License. See LICENSE for details.

Acknowledgements

• NeetCode for the problem list and explanations.
• Java and open-source community for tools and libraries.