Hi Codeforces! I am proud to invite you to the online mirror of 2024 Taiwan NHSPC Mock Contest!

The National High School Programming Contest (NHSPC) is an official informatics contest from Taiwan, where the top ten students enter the spring training camp, in which the IOI participants are selected. The NHSPC Mock Contest is a contest prepared by former OI participants from Taiwan, and helps contestants prepare for the official NHSPC which takes place the following week. This year, just like 2023, 2022, and 2020, we have decided to hold an online mirror on Codeforces, so people around the world can participate.

The mirror on Codeforces Gym takes place on Dec/01/2024 04:00 (Moscow time), and will last for 5 hours. The scoring is in IOI format, there will be 7-10 problems, each of which has a maximum score of 100 points. There will be subtasks of varying difficulty in each problem, and we hope that the problems will be interesting for contestants at all rating levels. The problem statements will be in English and (Traditional) Chinese.

I would like to thank our team of problem setters and testers for making this contest possible: LittleCube, willychan, qwe1rt1yuiop1, Darren0724, SaMuEl0516, GrandTiger1729, pring, PCC, LittleOrange666, cheissmart, SorahISA, phoenix0423, dbGIs, prairie2022, gaga999, amano_hina, daniel071292, Ststone, temmieowo, zacharychao, alvingogo, Misuki.

We suggest reading all problem statements and we hope you'll enjoy the contest!

UPD: Editorial (in Traditional Chinese)