Problem 2; intermediate results, week 1

By the end of the fifth week, there are 578 registered participants from 67 countries (the list of countries is given below). For the Problem 2, during the first week, 19 solutions were submitted, out of which 5 were correct.

First NameSurnameSchool/UniversityCountrydatetime
TevžLotričGimnazija KranjSlovenia15/12/1915:03
OliwierUrbańskiVII LO im. Dąbrówki w PoznaniuPoland17/12/1915:23
Duc HuyTran The Hong Kong University of Science and Technology Viet Nam18/12/1916:15
TungLinhCurrently in gap yerViet Nam19/12/1919:27
AntoniaGhitaInternational Computer High School of BucharestRomania20/12/1921:38

Participating countries: Australia, Azerbaijan, Bahrain, Bangladesh, Belarus , Bosnia and Herzegovina, Brasil, Bulgaria, Cambodia, Canada, China, Costa Rica, Croatia, Ecuador, Egypt, El Salvador, Estonia, Finland, France, Georgia, Germany, Greece, Hong Kong, Hungary, India, Indonesia, Italy, Japan, Kazakhstan, Korea, Kosovo, Kyrgyzstan, Latvia, Lithuania, Luxembourg, Macedonia (North), Malaysia, Mexico, Moldova, Mongolia, Morocco, Nepal, Netherlands, Nigeria, Pakistan, Peru, Philippines , Poland, Portugal, Romania, Russia, Saudi Arabia, Serbia, Singapore, Slovakia, Slovenia, Sweden, Switzerland, Syria, Tajikistan, Thailand, Turkey, Turkmenistan, United Kingdom, United States, Uzbekistan, Vietnam .