The third hint for Problem 4 will be published on 26th March 2023, 13:00 GMT.
By 12th March 2023, 13:00 GMT, there are 1254 participants from 91 countries. 37 solutions to P4 were submitted, out of which 16 were correct. Next update of the intermediate results: 26th March 2023, 13:00 GMT.
Correct solutions by university students:
| Lukas | Schicht | Germany | University of Rostock | 26/2/23 21:49 |
| Tejas | Acharya | India | University of Oxford | 2/3/23 12:07 |
| Gil | Ronen | Israel | Hebrew University of Jerusalem | 4/3/23 21:20 |
| Anindya | Guria | India | Indian Institute of Science | 6/3/23 07:24 |
| Luka | Passek-Kumerički | Croatia | University of Zagreb | 6/3/23 23:29 |
| Alessio | Biccari | Italy | La Sapienza | 8/3/23 21:33 |
| Kerim | Cherkezov | Turkmenistan | Turkmen State University | 14/3/23 07:47 |
Correct solutions by pre-university students:
| Vlad-Ștefan | Oros | Romania | “Grigore Moisil” Theoretical High School | 26/2/23 14:26 |
| Alptürk | Eski | Turkey | Erbakır Science High School | 26/2/23 20:23 |
| Emir Akdag | Kaan Dere | Turkey | Bahcesehir High School for Science and Technology | 27/2/23 15:02 |
| Eppu | Leinonen | Finland | Munkkiniemen yhteiskoulu | 2/3/23 15:48 |
| Tomas | Babelis | Lithuania | Vilniaus jėzuitų gimnazija | 3/3/23 21:20 |
| Arda | Ünver | Turkey | Kocaeli Bahcesehir High School of Science and Technology | 5/3/23 00:57 |
| Ahmet Bahadır | Trabzon | Turkey | Kabataş Erkek High School | 5/3/23 14:59 |
| Baiyu | Zhu | United States | California High School | 6/3/23 04:37 |
| Ilan, Ivan (Team) | Mihelja, Hegedić | Croatia | XV. gymnasium Zagreb, V. gymnasium Zagreb | 14/3/23 16:51 |
The list of countries:
Algeria, Argentina, Armenia, Australia, Austria, Azerbaijan, Bahrain, Bangladesh, Belarus, Belgium, Bosnia and Herzegovina, Brazil, Bulgaria, Cambodia, Cameroon, Canada, China, Croatia, Cuba, Czech Republic, Ecuador, Egypt, El Salvador, Estonia, Finland, France, Georgia, Germany, Greece, Guatemala, Honduras, Hong Kong, Hungary, India, Indonesia, Iran, Israel, Italy, Japan, Kazakhstan, Kenya, Kosovo, Kyrgyzstan, Latvia, Lithuania, Macau, Malaysia, Mexico, Moldova, Montenegro, 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