• Hacktoberfest® is open to everyone . Whether you’re a developer, student learning to code, event host, or company of any size, you can help drive growth of open source and make positive contributions to an ever-growing community.
• All backgrounds and skill levels are encouraged to complete the challenge.
• Hacktoberfest is a celebration open to everyone.
• You can sign up anytime between October 1 and October 31.

• To earn your Hacktoberfest tee or tree reward, you must register and make four valid pull requests (PRs) between October 1-31 (in any time zone).
• Pull requests can be made in any participating GitHub or GitLab hosted repository/project. Look for the 'hacktoberfest' topic to know if a repository/project is participating in Hacktoberfest.
• Pull requests must be approved by a maintainer of the repository/project to count.
• If a maintainer reports your pull request as spam or behavior not in line with the project’s code of conduct, you will be ineligible to participate.
• This year, the first 55,000 participants who successfully complete the challenge will be eligible to receive a prize.

This repository is contribution friendly. If you'd like to add or improve any algorithm, your contribution is welcome!
Don't forget to follow Contribution Guidelines 😃

• C
• C++
• Python
• Java
• Javascript