C Language Programs — Hacktoberfest 2025 🎯🐍

A curated collection of fundamental C Language Programs for beginners, students, and interview preparation.

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Hi — I’m Dimpesh Panwar 👋 Welcome to the C Language Programs repo for Hacktoberfest 2025! This repo is all about small, well-documented C programs that help beginners learn and contributors practice open-source collaboration.

What I'm Looking For

• Follow my GitHub account ✅
• Fork this repository and create a unique Pull Request (PR) — avoid duplicating existing solutions.
• Clear and Documented Code: PRs with well-written code, meaningful comments, and a short description are more likely to be accepted.
• Beginner-Friendly & Educational: Keep your contributions accessible and helpful for beginners.

1. ⭐ Follow my GitHub account
2. 🍴 Fork this repository
3. 🔀 Create a new branch : git checkout -b feature/your-short-title

✍️ Add your C program inside a descriptive folder
Example: sorting/quick_sort.c

📝 Include a short README or comment at the top of your file containing:

• Program name
• Problem statement
• Input / Output examples
• Complexity (if applicable)

🔁 Commit with a meaningful message

git commit -m "Add: bubble sort with explanation"

📤 Push your branch and open a PR to main with a clear title and description

✅ Ensure your PR is unique — check existing files before adding

Pull Request (PR) Checklist & Code Style Guidelines

Before submitting your pull request, please ensure the following:

PR Checklist

• ✅ Program compiles successfully with gcc
  Mention the exact command used, e.g.: gcc -o program program.c

• ✅ File placement & naming:
  Place your file in an appropriate folder and give it a clear, descriptive name.
  Example: math/fibonacci_iterative.c

• ✅ Examples provided:
  Include a couple of input/output examples in comments at the top of your file or in a small README.

• ✅ No duplicates:
  Make sure the solution does not already exist in the repository.

• ✅ PR description:
  Add a short, clear description of your approach in the PR body.

Code Style & Conventions

• Use clear and descriptive variable names.
• Include meaningful comments explaining your code.
• Keep functions short and focused on a single task.
• Prefer standard I/O (scanf/printf) for examples.
• If your program uses advanced features, briefly explain them at the top of the file.

Ideas to Contribute

Here are some ways you can contribute to the repository:

• Classic algorithms (sorting, searching)
• Number theory (GCD, prime checks)
• Data structures (linked list, stack, queue)
• Small games (e.g., tic-tac-toe CLI)
• Problem-solving examples (recursion, dynamic programming basics)
• Useful utilities (file I/O examples)

New Example Programs Added in This Branch

• file_io_examples.c — demonstrates basic file read/write using fopen, fgets, and fprintf.
• dynamic_array.c — simple vector-like dynamic array with push and automatic resizing.
• linked_list_example.c — singly linked list with insert, delete, and print functions.
• bst_example.c — binary search tree with insert and inorder traversal.

License

Contributions should be compatible with an open-source license.
This repository uses the MIT License unless otherwise noted.

Contact / Questions

• If you have any questions or need feedback, open an issue or mention me in your PR.
• I’ll review and accept unique, well-documented contributions.

Happy coding — let’s make Hacktoberfest 2025 awesome! 🚀