Hello Codeforces! The 13th Stage of the 1st Universal Cup is coming. It will be held from April 22nd to 23rd.

This contest was first used in the Petrozavodsk Programming Camp Winter 2023, and also appeared in the 2023 ICPC Training Camp powered by Huawei and the Hello Muscat 2023 Bootcamp. If you participated in any of those, you should not participate in this stage of the Universal Cup.

All the problems were authored and prepared by 998kover, 244mhq, 353cerega (Harbour.Space P+P+P, Barcelona, Spain) and Um_nik (Lisbon, Portugal).

We want to thank the Universal Cup Committee for staying true to the spirit of 5h/3person/1pc contests and for providing the opportunity to share our contest with a wider audience.

As usual, we have three time windows for participating. You can participate in the contest in the following three time windows:

Time Window 1: April 22nd 13:00 — 18:00 (UTC +8)

Time Window 2: April 22nd 19:00 — 24:00 (UTC +8)

Time Window 3: April 23rd 02:00 — 07:00 (UTC +8)

Please note that you can see two scoreboards in DOMjudge. The 'Local Scoreboard' shows the standings ONLY IN THE CURRENT TIME WINDOW. And the 'Combined Scoreboard' shows all participants, including the onsite participants, and the cup participants in the previous time windows.

Contest link: https://domjudge.qoj.ac/
Universal Cup Scoreboard: https://qoj.ac/ucup/scoreboard

About Universal Cup:

Universal Cup is a non-profit organization dedicated to providing trainings for competitive programming teams. Up to now, there are more than 500 teams from all over the world registering for Universal Cup.

A more detailed introduction: https://codeforces.me/blog/entry/111672

Register a new team: https://ucup.ac/register (the registration request will be processed before each stage)

Results of the past stages: https://ucup.ac/results

Terms: https://ucup.ac/terms

Ratings: https://ucup.ac/rating