Create CONTRIBUTING.md

Thank you for considering contributing to this repository! Your contributions help improve the quality and functionality of the C programs collection. Please take a moment to review these guidelines before submitting your contributions.

CONTRIBUTING.md

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+# Contributing Guidelines
+Thank you for considering contributing to this repository! Your contributions help improve the quality and functionality of the C programs collection. Please take a moment to review these guidelines before submitting your contributions.
+
+How to Contribute
+1. Fork the Repository
+Fork this repository to your own GitHub account. You can do this by clicking the "Fork" button on the top right of the repository page.
+
+2. Clone the Repository
+Clone your forked repository to your local machine using the following command:
+
+bash
+Copy code
+git clone https://github.com/your-username/repository-name.git
+3. Create a Branch
+Create a new branch for your contribution. It's good practice to use a descriptive branch name that reflects the changes you intend to make:
+
+bash
+Copy code
+git checkout -b feature/your-feature-name
+4. Make Your Changes
+Make the necessary changes or additions to the codebase. Ensure that your code adheres to the project's coding standards and conventions.
+
+5. Test Your Changes
+Thoroughly test your changes to ensure they work as expected and do not introduce any new issues. Include relevant test cases if applicable.
+
+6. Commit Your Changes
+Commit your changes with a clear and descriptive commit message. Follow the commit message guidelines:
+
+Use the present tense (e.g., "Add feature" instead of "Added feature").
+Use the imperative mood (e.g., "Fix bug" instead of "Fixes bug").
+Include a brief description of your changes.
+bash
+Copy code
+git add .
+git commit -m "Add feature: description of the feature"
+7. Push to Your Branch
+Push your changes to your forked repository:
+
+bash
+Copy code
+git push origin feature/your-feature-name
+8. Create a Pull Request
+Go to the original repository on GitHub and open a pull request from your branch. Provide a detailed description of your changes, including the purpose and any relevant details.
+
+9. Review and Feedback
+Your pull request will be reviewed by the repository maintainers. Be prepared to make any necessary changes based on feedback. Engage in discussions and address any comments or suggestions.
+
+Coding Standards
+Follow consistent indentation and formatting.
+Use meaningful variable and function names.
+Include comments to explain the purpose of the code and any complex logic.
+Ensure that your code is clean, readable, and maintainable.
+Contribution Types
+You can contribute in various ways, including but not limited to:
+
+Bug Fixes: Fixing reported issues and bugs.
+New Features: Implementing new features or enhancements.
+Documentation: Improving existing documentation or adding new documentation.
+Tests: Adding new test cases or improving existing tests.
+Refactoring: Improving the code structure and readability without changing its functionality.
+Code of Conduct
+By participating in this project, you agree to abide by the Code of Conduct. Please be respectful and considerate in all interactions and communications.
+
+License
+By contributing to this repository, you agree that your contributions will be licensed under the MIT License.
+
+Thank you for your contributions and support! If you have any questions or need further assistance, feel free to open an issue or contact the repository maintainers.