Here are the authors of the problems:
- A — Written by GlebsHP, prepared by vovuh
- B — Written by GlebsHP, prepared by vovuh
- C — zxqfl
- D — Errichto
- E — zxqfl
- F — zxqfl
- G — KAN
I'd like to thank the Codeforces team for their help, particularly KAN, who was the tester for this round.