Report the problem
Write to the organiser. You get the answer by e-mail, and the whole case – the answer included – stays on the site.
Before you report: check the frequently asked questions (FAQ). They cover, among other things, a missing activation e-mail, the accepted file formats, correcting a submitted solution and the appeal procedure.
We attach automatically: the address of the page you are writing from, your browser name, the interface language, your participant code and the name of your last action on the site. We do not collect passwords or the contents of forms.
