Some students have lost the list of courses they were enrolled to.
If this is your case, just enroll again: 'Courses→Available→your course→Enroll this course'.
Feu un programa que, donat un nombre n,
escrigui un “quadrat de mida n”.
L’entrada conisteix en un natural n ≥ 1.
Seguiu els exemples.
The official statement of a problem is always the one
in the PDF document. The HTML and PNG versions of the statement
are also given to help you, but they may contain some content
that is not well displayed. In case of doubt, always use the PDF.