Hello Codeforces!

The old main.edu.pl site contains tests and solutions for Algorithmic Engagements (PA — Potyczki Algorytmiczne) from 2001 to 2015. But the site goes down several years ago. Many places, like Baekjeon or Szkopul, don't provide any tests download yet. Is there any place we can find the tests yet?

Hello Codeforces!

I found that the site https://sio2.mimuw.edu.pl/ contains lots of tests of Polish Olympiad in Information (POI). But I can only enter the 1t stage of the contest and download tests. When I enter the 2nd stage manually (such as https://sio2.mimuw.edu.pl/c/oi22-2/dashboard/), it gives me 403 so I can't access the contest page. How can I get access to the page and download the tests?

If it's not open for everyone, is there anywhere we can download tests of POI? I think there was a site main.edu.pl several years ago, but it seems the site is down.

Thanks everyone.