Yes, during the competition we will give out important information through our noticeboard that will be available on our website. Send your questions about the tasks and other things to firstname.lastname@example.org.
You can cheer each other on using our forum. You can communicate in Czech (or Slovak) and English (but only for the foreign high schoolers and the Open category.).
The competition has two main phases and one supplementary one (Hurry-up). The first phase starts with the competition and sometime during its duration the Hurry-up phase will begin. These will then run in parallel until the start of the second phase. The second phase links to the first and the only difference is that you can skip problems in it. For the Hurry-up phase see the rules and the questions and answers below.
You will get the seven initial problems when the competition starts. You can expect new problems with the Hurry-up series. During the competition you must solve the problems you have to get new ones or, in the second phase, by skipping problems. The exchange is always one for one. You can find more information in the rules.
Yes, after the end of the competition the solutions will appear on our website. Some time after the end the organizers will still be on the website and will be reacting to your recommendations, experiences or troubles relating the competition or the problems.
The task should make it clear. If it isn't clear then contact the organizers. In general it is true that more significant digits are not a problem.
Examples of correct rounding of a result can be found in rules.
Yes, you can answer any question as many times as you want to. Remember though that by submitting wrong answers you will lower the potential point gain from the question and also that you can't answer the problems from the same category incorrectly more than once in a minute (the problems from the main category and the three hurry-up categories). For more information see the rules of the competition.
You can skip as many problems as you want to but you have to have a sufficient amount of points. You can't skip another problem if it would bring you below -7 points. If this happens to you then know that you can start skipping problems again once you have more than -7 points.
It is a period in the competition between 18:00 and 18:30 CET when you can solve new and relatively easy problems. It is a series of problems that runs in parallel to the normal competition. The Hurry-up series has some specific rules though. You can find more about this in the rule section.