Big thanks to KAN who uploaded these two contests with ghosts and everything and even tuned up TLs a bit for CF.

2019-2020 Winter Petrozavodsk Camp, Day 8: Almost Algorithmic Contest

2020-2021 Winter Petrozavodsk Camp, Day 5: Almost Retired Dandelion Contest (XXI Open Cup, Grand Prix of Nizhny Novgorod)

The second contest was used as an OpenCup stage last season, while the first one was not published anywhere (except some secret Chinese servers I assume).

Selfpromotion: I really think that these two contests are amazing. The difficulty is comparable to ICPC WF or harder regional finals (but with a smaller number of easy problems, who needs them anyway).

I was the author of more than half problems from both contests, with additional problems contributed by KAN, vepifanov, ashmelev, kristevalex, Merkurev and WYOCMWYH. I also want to mention the authors of three original problems that were improved and reused in the second contest: Ferume, fake123 and dario2994.

Enjoy!