The 2022 ICPC Seoul Regional Mirror Contest has ended (link), and since no one made a post for discussion, let's discuss below. How to solve A, B, G and H?
The 2022 ICPC Seoul Regional Mirror Contest has ended (link), and since no one made a post for discussion, let's discuss below. How to solve A, B, G and H?
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
Hi Codeforces!
We are pleased to invite you to [contest:383377], which will take place on [contest_time:383377]. You will be given 9 problems and 2 hours to solve them. Please follow this link in order to register for the contest. Note that this contest is not an official Codeforces round.
The round will be unrated for all participants. It will be held according to modified ICPC rules.
All problems in this round were written and prepared by dorijanlendvaj, errorgorn, Ari, nor and ToxicPie9. We have worked on this round for quite a short time and hope you find every problem so easy that even your five year old sibling could solve it interesting.
This round is sponsored by errorgorn and Ari with the following prizes:
We would like to thank:
Good luck and have fun! See you in the standings. Make sure to read the statements and conversion rate very carefully.
Reminder: The registration has just started!
Reminder 2: The contest starts in 15 minutes! Good luck, have fun!
UPD: Congratulations to the winners:
We would also like to congratulate the top $$$104$$$ participants for solving all the problems in-contest!
The editorial along with some more interesting stuff can be found here.