The third hint for Problem 1 will be published on 18th December 2022, 13:00 GMT .
By 11th December 2022, 13:00 GMT, there are 1105 participants from 88 countries. 231 solutions to P1 were submitted, out of which 35 were correct.
Correct solutions by university students:
| First name | Surname | Country | School/University | P1 date time DD/MM/YY 00:00:00 |
| Luca | Milanese | Italy | Scuola Normale Superiore di Pisa | 13/11/2022 13:52:00 |
| Bayram Alp | Şahin | Turkey | Bogazici University | 13/11/2022 15:10:00 |
| Zhanshuo (展硕) | Tang (汤) | China | Tsinghua University | 14/11/2022 13:43:00 |
| Bowen | Tan | China | Jilin Normal University | 15/11/2022 10:55:00 |
| Eyal | Walach | Israel | Bar-Ilan University | 15/11/2022 22:26:00 |
| Nianqing | Wan | China | Shanghai University | 20/11/2022 08:08:00 |
| Luka | Passek-Kumerički | Croatia | University of Zagreb | 23/11/2022 13:41:00 |
| 礼中 | 付 | China | University of Science and Technology of China | 26/11/2022 14:59:00 |
| Ronald | Dobos | Slovakia | University of Cambridge | 29/11/2022 06:22:00 |
| Yeswanth Narayana | Patnana | India | IIT Madras | 04/12/2022 18:30:00 |
| Tejas | Acharya | India | University of Oxford | 05/12/2022 10:22:00 |
| Kerim | Cherkezov | Turkmenistan | Turkmen State University | 06/12/2022 06:47:00 |
| Ziyue | Wang | China | Hebei University of Technology | 11/12/2022 03:28:00 |
| Duta | Kartvelishvili | Georgia | Free University Of Tbilisi | 11/12/2022 12:59:00 |
Correct solutions by pre-university students:
| Vlad-Ștefan | Oros | Romania | “Grigore Moisil” Theoretical High School | 13/11/2022 13:46:00 |
| Guglielmo | Di Grazia | Italy | Liceo Lorenzini Pescia | 13/11/2022 20:08:00 |
| Adam | Džavoronok | Slovakia | Gymnázium, Poštová 9 | 17/11/2022 10:36:00 |
| Aditya | – | India | FIITJEE | 18/11/2022 07:23:00 |
| Chung Wang | Lam | Hong Kong | St. Paul’s Co-educational College | 20/11/2022 05:34:00 |
| Andrei-Darius | Dragomir | Romania | International Computer Highschool of Bucharest (ICHB) | 20/11/2022 12:59:00 |
| Liao | Haoding | China | Chongqing Bashu Middle School | 23/11/2022 03:22:00 |
| Rhythm | Kedia | India | MB International | 23/11/2022 14:21:00 |
| Zilang | Shu | China | Beijing National Day School | 25/11/2022 08:26:00 |
| Alexandra | Curea | Romania | Theoretical National High School | 27/11/2022 10:21:00 |
| Ahmet Bahadır | Trabzon | Turkey | Kabataş Erkek High School | 29/11/2022 14:27:00 |
| Filip | Vučić | Croatia | I. gymnasium Zagreb | 29/11/2022 16:49:00 |
| Archit | Hari | India | FIITJEE | 30/11/2022 13:38:00 |
| Matvey Kuklin | Fyodor Chulyov | Russia | AESC MSU | 03/12/2022 19:12:00 |
| Ilan, Ivan (Team) | Mihelja, Hegedić | Croatia | XV. gymnasium Zagreb, V. gymnasium Zagreb | 03/12/2022 20:07:00 |
| Eppu | Leinonen | Finland | Munkkiniemen yhteiskoulu | 04/12/2022 13:58:00 |
| Alexandar | Roussev | Bulgaria | – | 08/12/2022 09:35:00 |
| Reeshabh | Kotecha | India | Mprakash Institute | 09/12/2022 06:55:00 |
| Guangyuan | Chen | Singapore | Raffles Institution | 10/12/2022 07:30:00 |
| Tomas | Babelis | Lithuania | Vilniaus jėzuitų gimnazija | 10/12/2022 21:01:00 |
| Jingyang James | He | Singapore | Raffles Institution | 11/12/2022 00:09:00 |
The list of countries:
Algeria, Argentina, Armenia, Australia, Austria, Azerbaijan, Bahrain, Bangladesh, Belarus, Belgium, Bosnia and Herzegovina, Brazil, Bulgaria, Cambodia, Cameroon, Canada, China, Costa Rica, Croatia, Cuba, Czech Republic, Czech Republic, Ecuador, Egypt, El Salvador, Estonia, Finland, France, Georgia, Germany, Greece, Guatemala, Honduras, Hong Kong, Hungary, India, Indonesia, Iran, Israel, Ireland, Italy, Japan, Kazakhstan, Kenya, Kosovo, Kyrgyzstan, Latvia, Lithuania, Macau, Malaysia, Mexico, Moldova, Montenegro, Morocco, Nepal, Netherlands, Nigeria, North Macedonia, Pakistan, Peru, Philippines, Poland, Romania, Russia, Rwanda, Saudi Arabia, Serbia, Singapore, Slovakia, Slovenia, South Africa, South Korea, Spain, Sri Lanka, Sweden, Switzerland, Syria, Taiwan, Tajikistan, Thailand, Turkey, Turkmenistan, Ukraine, United Arab Emirates, United Kingdom, United States, Uzbekistan, Vietnam