CS50 2025: Problem Sets and Projects 🎓

Welcome to my CS50 2025 repository! This is where I document my journey through Harvard’s iconic CS50 course, tackling problem sets, building projects, and exploring the fascinating world of computer science. Whether you're a fellow CS50 student, a curious learner, or just here to explore, this repository is a testament to the challenges, triumphs, and lessons learned along the way.

Harvard CS50 2025 - Course Materials and Resources

What’s Inside? 💻

This repository contains:

• Code examples from lectures and problem sets.
• Additional resources to supplement your learning.
• Notes summarizing key concepts from each week.

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Why This Repository? 🌟

• Structured Learning: Organized by weekly modules, making it easy to follow along with the official CS50 course.
• Supplementary Resources: Extra materials to deepen your understanding of key concepts.
• Community Contributions: A collaborative space for learners to share insights and solutions.

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Course Overview

CS50, also known as CS50x on edX, is Harvard University's introduction to the intellectual enterprises of computer science and the art of programming. The course covers a wide range of topics, including:

• Programming in C, Python, SQL, and JavaScript
• Algorithms and Data Structures
• Web Development
• Software Engineering Principles
• Cybersecurity
• Artificial Intelligence

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Weekly Modules and Official Resources

To make your learning experience seamless, here are the official weekly modules and resources from the CS50x course on edX:

Week 0: Scratch

• Topics: Computational thinking, introduction to Scratch.
• Lecture Notes: Week 0 Notes
• Problem Set: Scratch

Week 1: C

• Topics: Introduction to C, variables, loops, and conditionals.
• Lecture Notes: Week 1 Notes
• Problem Set: C Basics

Week 2: Arrays

• Topics: Arrays, strings, and command-line arguments.
• Lecture Notes: Week 2 Notes
• Problem Set: Arrays

Week 3: Algorithms

• Topics: Searching, sorting, and algorithmic efficiency.
• Lecture Notes: Week 3 Notes
• Problem Set: Algorithms

Week 4: Memory

• Topics: Pointers, memory management, and dynamic memory allocation.
• Lecture Notes: Week 4 Notes
• Problem Set: Memory

Week 5: Data Structures

• Topics: Linked lists, hash tables, and trees.
• Lecture Notes: Week 5 Notes
• Problem Set: Data Structures

Week 6: Python

• Topics: Introduction to Python, syntax, and libraries.
• Lecture Notes: Week 6 Notes
• Problem Set: Python

Week 7: SQL

• Topics: Databases, SQL queries, and data manipulation.
• Lecture Notes: Week 7 Notes
• Problem Set: SQL

Week 8: Web Development

• Topics: HTML, CSS, JavaScript, and Flask.
• Lecture Notes: Week 8 Notes
• Problem Set: Web Development

Week 9: Cybersecurity

• Topics: Encryption, security best practices, and ethical hacking.
• Lecture Notes: Week 9 Notes
• Problem Set: Cybersecurity

Week 10: Artificial Intelligence

• Topics: Machine learning, neural networks, and AI ethics.
• Lecture Notes: Week 10 Notes
• Problem Set: AI

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How to Use This Repository

1. Clone the Repository:

   git clone https://github.com/Kamal007OLica/Harvard-CS50-2025.git
   cd Harvard-CS50-2025
   

2. Navigate to Weekly Folders: Each week has its own folder containing relevant code, notes, and resources.

3. Follow Along with the Course: Use the official CS50x edX course to watch lectures, complete problem sets, and track your progress.

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Contributing

If you'd like to contribute to this repository, feel free to:

• Add additional notes or resources.
• Fix errors or improve existing content.
• Share your solutions to problem sets (with explanations).

To contribute:

1. Fork the repository.
2. Create a new branch (git checkout -b feature-name).
3. Commit your changes (git commit -m "Add feature").
4. Push to the branch (git push origin feature-name).
5. Open a pull request.

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License

This repository is licensed under the CC0 1.0 Universal (CC0 1.0) Public Domain Dedication. This means you can freely use, modify, and distribute the content without any restrictions. For more details, see the LICENSE file.

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Happy coding, and enjoy your journey through Harvard CS50 2025! 🚀

For more details, visit the official CS50 website.