PC2023 Problem 4 – Intermediate results, week 1

The first hint for Problem 4 will be published on 12th March 2023, 13:00 GMT.

By 5th March 2023, 13:00 GMT, there are 1241 participants from 91 countries. 20 solutions to P4 were submitted, out of which 9 were correct. Next update of the intermediate results: 12th March 2023, 13:00 GMT.

Correct solutions by university students:

LukasSchichtGermanyUniversity of Rostock26/2/23 21:49
TejasAcharyaIndiaUniversity of Oxford2/3/23 12:07
GilRonenIsraelHebrew University of Jerusalem4/3/23 21:20

Correct solutions by pre-university students:

Vlad-ȘtefanOrosRomania“Grigore Moisil” Theoretical High School26/2/23 14:26
AlptürkEskiTurkeyErbakır Science High School26/2/23 20:23
Emir AkdagKaan DereTurkeyBahcesehir High School for Science and Technology27/2/23 15:02
EppuLeinonenFinlandMunkkiniemen yhteiskoulu2/3/23 15:48
TomasBabelisLithuaniaVilniaus jėzuitų gimnazija3/3/23 21:20
ArdaÜnverTurkeyKocaeli Bahcesehir High School of Science and Technology5/3/23 00:57

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