Please note that in 2021, the RainAir Cup registration rules have undergone major changes.
First, We have brought a brand new Div 3 Stage. The difficulties of Div 3 is about the third problem of IOI, and the top three difficult topics in the ICPC World Final. Div 2 is still the difficulty of RainAir OI Junior Group, and Div 1 is the Senior one.
For a new team, you need to get an IOI gold medal first. World Final Medalist team is also allowed. Later, at the end of a season, we will select your best 10 contests and calculate your total score in accordance with the GP 30 rules.
A team which gets the top 33.33% in the Div 3 season can apply for promotion to Div 2, and the team which gets the top 50% in the Div 2 season can apply for promotion to Div 1.
The GP 30 Score Table:
| Rank | Score |
|---|---|
| 1 | 100 |
| 2 | 75 |
| 3 | 60 |
| 4 | 50 |
| 5 | 45 |
| 6 | 40 |
| 7 | 36 |
| 8 | 32 |
| 9 | 29 |
| 10 | 26 |
| 11 | 24 |
| 12 | 22 |
| 13 | 20 |
| 14 | 18 |
| 15 | 16 |
| 16 | 15 |
| 17 | 14 |
| : | |
| 30 | 1 |
The Schedules of XXVIII RainAir Cup:
| Date | Contest |
|---|---|
| 2021.01.03 | Grand Prix of Zhejiang |
| 2021.01.10 | Grand Prix of SPb |
| 2021.01.17 | Grand Prix of Zhengrui |
| 2021.01.24 | Grand Prix of Moscow |
| 2021.01.31 | Grand Prix of Korea |
| 2021.02.07 | Grand Prix of Tokyo |
| 2021.02.14 | Grand Prix of Baltic Sea |
| 2021.02.21 | Grand Prix of Nizhny Novgord |
| 2021.02.28 | Grand Prix of Omsk |
| 2021.03.07 | Grand Prix of New York |
| 2021.03.14 | Grand Prix of Central Europe |
| 2021.03.21 | Grand Prix of Linyi |
| 2021.03.28 | Grand Prix of Japan |
| 2021.04.04 | Grand Prix of North Carolina |
| 2021.04.11 | Grand Prix of Samara |
| 2021.04.18 | Grand Prix of Kazan |
| 2021.04.25 | Grand Prix of Novosibirsk |
| 2021.05.02 | Grand Prix of Saratov |
| 2021.05.09 | Grand Prix of Taiwan |
| 2021.05.16 | Grand Prix of Seoul |
| 2021.05.23 | Grand Prix of Massachusetts |