Who is this community for? The community is meant for people who are Interested in the International Olympiad in Informatics and are studying in a school. If you are interested in algorithms but are not a school student, you should join the Competitive Programming community.

What things are part of the community? All the tutorials and problems in the community are divided into four levels - Pre-beginner, Beginner, Intermediate, and Advanced. Each level is a combination of concepts involved, and the difficulty of the problems. I recommend focusing on the next step you should be taking instead of trying to list down all the things you need to do to get a Gold medal @ IOI. There is also a separate Discussions channel that you can use for anything else you'd like to discuss with the community.

Getting started: Please introduce yourself by adding a reply in this discussion: Introduce yourself!. Be sure to state your current experience level, what your goals are, how you got into programming, and anything else that helps people better understand you. Lastly, you can make requests for missing tutorials by upvoting the replies in this discussion: [Poll] Request for tutorials. You can vote for as many things as you like, and I'll give first preference to creating content for the most upvoted topics.

Your contributions: First and foremost, a big thank you to everyone who has contributed hints, and helped others in the community when they got stuck. This community works best when the intermediate people help the beginners, the advanced people help the intermediates, and when everyone solves problems together.

Tell your friends: It takes a lot of time and effort to run this community, create the tutorials, and answer all the questions. When you like something, I'd appreciate if you let me know that you liked it, and share it with your friends, teachers, student clubs, and so on.

Looking for moderators: We are also looking for moderators for the IOI community. As a moderator, you must actively and consistently help in at-least one of the core aspects of the community AND you have been implementing algorithms for at least 1 year, or have a suitable rating in CodeChef, CodeForces, TopCoder or something equivalent. If you are interested, you can send me an email at keshav.dhandhania.57@gmail.com.

How does this community relate to the plethora of resources available for Competitive Programming?

Best content from the web: The content in this community is a curation of the best resources available online - sourced from TopCoder, CodeChef, YouTube videos, blog posts, and on and on. Using the simplest explanation saves time and helps in understanding the concept better.
Continually improving: Since this is a curation, when a better video or a better tutorial is available, we replace the old one.
Intuition, simplicity and fun: We will focus on choosing content that gives the intuition, and helps you visualize the algorithm. A picture is worth a thousand words, and an animation is worth a million.
Solutions are given one hint at a time: When you get stuck, you learn the most if you take a small hint and go back to solving the problem.

Happy coding!

Keywords: International Olympiad in Informatics. IOI. USA Computing Olympiad. INOI. IOI 2016. IOI 2017. Indian Computing Olympiad. Informatics Olympiad. British Informatics Olympiad. Canadian Computing Competition. Australian Informatics Olympiad. Central European Olympiad in Informatics (CEOI). Croatian Open Competition in Informatics (COCI).

this problem is a nice one we need to arrange the cows in such a way that

distance between them ...