🎯 C Programs: From Basics to Advanced

A beginner-friendly Hacktoberfest repository for practicing and contributing C programs from scratch to expert level.
Sharpen your C skills and start contributing today! 🚀

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📖 Table of Contents

• 📌 About
• 📚 What You’ll Find Here
• 🛠 Usage / Running the Code
• 📝 Contribution Guide (MANDATORY)
• 📁 Folder Structure
• 🎃 Hacktoberfest Rules
• 👨‍💻 Maintainers
• 📢 Support
• 📄 License

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📌 About

This repository contains a structured collection of C language programs, ranging from beginner-level syntax to advanced data structures and algorithms.

Whether you're:

• just starting out with C 💻
• preparing for interviews 🎯
• or contributing for Hacktoberfest 🧡

This repo has something for you.

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📚 What You’ll Find Here

🧠 Organized by topic, this repo includes:

• ✅ Basic Programs (Hello World, Variables, Operators)
• ✅ Conditional Statements (if, switch)
• ✅ Loops (for, while, do-while)
• ✅ Functions & Recursion
• ✅ Arrays & Strings
• ✅ Pointers & Memory Allocation
• ✅ Structures & Unions
• ✅ File Handling
• ✅ Sorting & Searching Algorithms
• ✅ Data Structures (Linked Lists, Stacks, Queues, Trees)
• ✅ Miscellaneous Logic Building Challenges

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🛠 Usage / Running the Code

You can test or learn from any .c file using your favorite C compiler like GCC.

🧾 Step-by-Step

1. Clone the repo:

git clone https://github.com/SahilKumarIN/C-Programs-Basics-to-Advanced.git
cd C-Programs-Basics-to-Advanced

2. Navigate to a topic folder (e.g., Loops):

cd Loops/

3. Compile the code using GCC:

gcc filename.c -o output

4. Run the compiled program:

./output

📌 Example:

cd Loops/
gcc for_loop_example.c -o for_loop_example
./for_loop_example

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📝 Contribution Guide (MANDATORY)

We welcome your contributions — and this project is Hacktoberfest-ready! 🎉

✅ Follow these steps:

1. Fork the repository.
2. Clone your fork:

git clone https://github.com/SahilKumarIN/C-Programs-Basics-to-Advanced.git

3. Create a new branch:

git checkout -b add-my-program

4. Add your .c file to the appropriate folder.
5. Edit CONTRIBUTION.md (MANDATORY):
   • Add your name
   • Program title
   • Folder + file name
6. Commit and push your changes:

git add .
git commit -m "Add: program name under topic folder"
git push origin add-my-program

7. Open a Pull Request from your branch to the main branch.

⚠️ PRs without updating CONTRIBUTION.md will be marked invalid for Hacktoberfest.

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📁 Folder Structure

C-Programs-Basics-to-Advanced/
│
├── Basic/
├── Conditionals/
├── Loops/
├── Functions/
├── Arrays/
├── Strings/
├── Pointers/
├── Structures/
├── FileHandling/
├── Algorithms/
├── DataStructures/
│
├── CONTRIBUTION.md   <-- 🔥 MUST edit when contributing!
├── README.md
└── LICENSE

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🎃 Hacktoberfest Rules

✅ This repo is officially participating in Hacktoberfest 2025.

🧾 Make 4 valid PRs between October 1–31 to earn swag or plant trees.

🚫 Spammy/incomplete PRs will be marked as invalid.

📋 Official rules: https://hacktoberfest.com

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👨‍💻 Maintainers

Repo Maintained By
Sahil Kumar

Feel free to open an issue or contact for suggestions or co-maintaining.

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📢 Support

If you find this project useful or inspiring:

• 🌟 Star this repo
• 🍴 Fork and contribute
• 🧑‍🤝‍🧑 Share with your friends
• 📲 Post it on social media

Together, we grow. 🌱

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📄 License

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

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Happy Coding & Happy Hacktoberfest 2025! 🎉