1. Algorithms(written in language C ,C,Java)
2. Design Pages
3. HTML webpages (CSS included)

[levels:basic,medium,hard - all accepted]

To contribute to <project_name>, follow these steps:

1. Fork this repository.
2. Create a branch: git checkout -b <branch_name>.
3. Make your changes and commit them: git commit -m '<commit_message>'. Mention the commit_message as "Updating xxx" where xxx is what you are contributing, eg:Designs, Algorithm-name(for Algorithm), File name if you are pushing any kind of code, etc.
4. Push to the original branch: git push origin <project_name>/<location>
5. Create the pull request.

NOTE : Changes made to the README.md won't be counted as hacktoberfest-accepted.

Alternatively see the GitHub documentation on creating a pull request.