Hello everyone!

While browsing through the problemset, I often find tasks from rounds with various custom rules, such as "You can only use one language for one problem" or "You can only submit in language X". I see several problems with those tasks:

1. Their difficulty value is a poor match to their real difficulty. A task that would have had difficulty 1500, had the round been normal, can easily be 2000+ on such one (fewer people submit => higher value). While filtering problems by difficulty, I often come across them, wonder why they are so easy and then notice some custom rule. That's quite annoying.

2. Sometimes a problem is interesting by itself, but the whole thing is ruined by some restriction. It would be good if it were possible to submit all problems normally (they're there for practice, after all).

So, what are your thoughts on the topic? Share them below!