Hello! I'm happy to announce The 1st Universal Cup. Stage 2: Hong Kong, which will be held on Feb 4th, 2023.
This contest is prepared by Zhejiang University, which has already been used as the The 47th ICPC Asia Hong Kong Regional Contest. There are 127 teams participating in the Regional. This contest also serves as Day 3 in 2023 Winter Petrozabodsk Camp on Feruary 2nd, 2023.
The contest will start soon. You can participate in the contest in the following three time windows:
- Feb 4th 13:00 — 18:00 (UTC +8)
- Feb 4th 19:00 — 24:00 (UTC +8)
- Feb 5th 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.
Authors: Claris, Sugar_fan, Suika_predator, oipotato, qiqi20021026 ,pb0207
Testers: gisp_zjz, Roundgod, triple__a, forxen, idxcalcal, Joyemang, RDDCCD, dyxg, fr200110217102, njupt_lyy, kimoyami, yezzz, HeartFireY, gongkoufadongji, apeiya, gym580299, PaperCloud
Contest link: https://domjudge.qoj.ac/
Regional Scoreboard: https://board.xcpcio.com/icpc/47th/hongkong
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 200 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
UPD: The contest is in GYM now! https://codeforces.me/gym/104172
Auto comment: topic has been updated by pb0207 (previous revision, new revision, compare).
PB IS GOD
How to solve problem I?
The contest is in GYM now and the tutorial is uploaded.
Auto comment: topic has been updated by pb0207 (previous revision, new revision, compare).
Could someone explains the solution for E ? I don't get the part
and the problem is reduced to add 1 or −1 to some interval and count the number of global minimum value
Link to the editorial https://vj.csgrandeur.cn/e276046fbf0f45b090b2e42bf0db8d55?v=1676207982