Thank you for participating in this round! We hope you found the problems interesting and/or funny.
Special thanks to dorijanlendvaj for helping with Polygon related issues. Preparing good tests for certain problems was in fact a good problem in itself (in fact, sometimes they were hard enough for usual CF rounds), and we will mention these problems for the interested reader.
If the editorials are not visible, try registering for the contest or something similar.
Problem A: idea: ToxicPie9, preparation: nor
Problem B: idea: dorijanlendvaj, preparation: dorijanlendvaj
Problem C: idea: nor, preparation: nor
Problem D: idea: Ari, preparation: Ari
Problem E: idea: errorgorn, preparation: nor
Problem F: idea: nor, preparation: nor
Problem G: idea: nor, preparation: nor
Problem H1: idea: nor, preparation: nor
Problem H2: idea: ToxicPie9, preparation: nor
Fun fact: the extra task for D appeared on an ICPC regional last year; see here.
It's also nearly identical to a past USACO Silver problem