PC2022 Problem 2 – Intermediate results, week 5

The fifth and last hint will be published on 30th January, 13:00 GMT.

By 23rd January 2022, 13:00 GMT, there are 1067 participants from 78 countries. 93 solutions to P2 were submitted, out of which 18 were correct.

Correct solutions by university students:

First nameSurnameCountrySchool/UniversityP2 date time
DD/MM/YY 00:00:00
Zhening LiEddie ChenCanada/United StatesMassachusetts Institute of Technology20/12/2021 20:52:00
DengJinqiuChinaBeijing University of Aeronautics and Astronautics27/12/2021 04:13:00
ShofarSnoSurinameAnton de Kom University of Suriname29/12/2021 06:50:00
AlessandroRezziItalyUniversity of Padova03/01/2022 19:23:00
JaroslavHermanCzech RepublicCharles University05/01/2022 15:46:00
Ameya VikramaSinghIndiaIndian Institute of Technology Bombay09/01/2022 20:02:00
IsaacWuAustraliaUniversity of Melbourne13/01/2022 17:07:00
KevinYouUnited StatesCarnegie Mellon University16/01/2022 08:20:00
YuechenZhuChinaPeking University16/01/2022 14:07:00
QianLinChinaUniversity of Oxford17/01/2022 06:08:00
FelixSchwarzfischerGermanyTechnical University Munich17/01/2022 10:49:00
ZiyueWangChinaHebei University of Technology17/01/2022 17:49:00

Correct solutions by pre-university students:

Vlad-ȘtefanOrosRomania“Grigore Moisil” Theoretical High School21/12/2021 06:22:00
LucaMilaneseItalyLiceo “Leonardo da Vinci”, Terracina04/01/2022 11:58:00
WangQuanquanChinaTianjin Yaohua High School16/01/2022 15:33:00
SebastiánArévaloEl SalvadorInstituto Emiliani19/1/22 04:19
YehyunChoiUnited StatesWestlake High School22/01/2022 23:36:00
VukHipSerbiaMathematical Grammar School23/01/2022 12:48:00


The list of countries:
Algeria, Argentina, Australia, Azerbaijan, Bangladesh, Belarus, Belgique, Bosnia and Herzegovina, Brazil, Brunei Darussalam, Bulgaria, Canada, China, Costa Rica, Croatia, Czech Republic, Egypt, El Salvador, Estonia, Ethiopia, Finland, France, Georgia, Germany, Greece, Honduras, Hong Kong, Hungary, India, Indonesia, Iran, Israel, Italy, Japan, Kazakhstan, Korea, Kosovo, Kyrgyzstan, Latvia, Lebanon, Lithuania, Luxembourg, Macao, Malaysia, Mexico, Moldova, Mongolia, Nepal, Nigeria, North Macedonia, Pakistan, Peru, Philippines, Poland, Romania, Russia, Saudi Arabia, Serbia, Singapore, Slovakia, South Africa, Spain, Sri Lanka, Suriname, Sweden, Switzerland, Syria, Taiwan, Tajikistan, Tanzania, Thailand, Turkey, Turkmenistan, Ukraine, United Kingdom, United States, Uzbekistan, Vietnam