PC2023 Problem 1 – Intermediate results, week 6

There will be no more hints for Problem 1. Next update of the intermediate results: 1st January 2022, 13:00 GMT. The final deadline for the submission third hint for Problem 1: 1st January 2023, 23:59 GMT

By 25th December 2022, 13:00 GMT, there are 1138 participants from 88 countries. 271 solutions to P1 were submitted, out of which 58 were correct.

Correct solutions by university students:

First nameSurnameCountrySchool/UniversityP1 date time
DD/MM/YY 00:00:00
LucaMilaneseItalyScuola Normale Superiore di Pisa13/11/2022 13:52:00
Bayram AlpŞahinTurkeyBogazici University13/11/2022 15:10:00
Zhanshuo (展硕)Tang (汤)ChinaTsinghua University14/11/2022 13:43:00
BowenTanChinaJilin Normal University15/11/2022 10:55:00
EyalWalachIsraelBar-Ilan University15/11/2022 22:26:00
NianqingWanChinaShanghai University20/11/2022 08:08:00
LukaPassek-KumeričkiCroatiaUniversity of Zagreb23/11/2022 13:41:00
礼中ChinaUniversity of Science and Technology of China26/11/2022 14:59:00
RonaldDobosSlovakiaUniversity of Cambridge29/11/2022 06:22:00
Yeswanth NarayanaPatnanaIndiaIIT Madras04/12/2022 18:30:00
TejasAcharyaIndiaUniversity of Oxford05/12/2022 10:22:00
KerimCherkezovTurkmenistanTurkmen State University06/12/2022 06:47:00
ZiyueWangChinaHebei University of Technology11/12/2022 03:28:00
DutaKartvelishviliGeorgiaFree University Of Tbilisi11/12/2022 12:59:00
AnindyaGuriaIndiaIndian Institute of Science11/12/2022 14:36:00
KienTrung PhamVietnamHanoi University of Science and Technology11/12/2022 15:59:00
Juan FranciscoLorusso Notaro FrancescoUnited KingdomCambridge University16/12/2022 14:37:00
GilRonenIsraelHebrew University of Jerusalem16/12/2022 15:34:00
MarinusLehmannGermanyUniversity of Potsdam18/12/2022 10:53:00
SoumyadeepSarmaIndiaIndian Institute of Science18/12/2022 13:40:00
LukasSchichtGermanyUniversity of Rostock22/12/2022 19:23:00
DanielSchillerGermanyRuprecht-Karls-Universität Heidelberg22/12/2022 22:03:00
Absur KhanSiamBangladeshKorea Advanced Institute of Science & Technology (KAIST)25/12/2022 08:37:00
JaroslavHermanCzech RepublicCharles University25/12/2022 12:32:00

Correct solutions by pre-university students:

Vlad-ȘtefanOrosRomania“Grigore Moisil” Theoretical High School13/11/2022 13:46:00
GuglielmoDi GraziaItalyLiceo Lorenzini Pescia13/11/2022 20:08:00
AdamDžavoronokSlovakiaGymnázium, Poštová 917/11/2022 10:36:00
AdityaIndiaFIITJEE18/11/2022 07:23:00
Chung WangLamHong KongSt. Paul’s Co-educational College20/11/2022 05:34:00
Andrei-DariusDragomirRomaniaInternational Computer Highschool of Bucharest (ICHB)20/11/2022 12:59:00
LiaoHaodingChinaChongqing Bashu Middle School23/11/2022 03:22:00
RhythmKediaIndiaMB International23/11/2022 14:21:00
ZilangShuChinaBeijing National Day School25/11/2022 08:26:00
AlexandraCureaRomaniaTheoretical National High School27/11/2022 10:21:00
Ahmet BahadırTrabzonTurkeyKabataş Erkek High School29/11/2022 14:27:00
FilipVučićCroatiaI. gymnasium Zagreb29/11/2022 16:49:00
ArchitHariIndiaFIITJEE30/11/2022 13:38:00
Matvey KuklinFyodor ChulyovRussiaAESC MSU03/12/2022 19:12:00
Ilan, Ivan (Team)Mihelja, HegedićCroatiaXV. gymnasium Zagreb, V. gymnasium Zagreb03/12/2022 20:07:00
EppuLeinonenFinlandMunkkiniemen yhteiskoulu04/12/2022 13:58:00
AlexandarRoussevBulgaria08/12/2022 09:35:00
ReeshabhKotechaIndiaMprakash Institute09/12/2022 06:55:00
GuangyuanChenSingaporeRaffles Institution10/12/2022 07:30:00
TomasBabelisLithuaniaVilniaus jėzuitų gimnazija10/12/2022 21:01:00
Jingyang JamesHeSingaporeRaffles Institution11/12/2022 00:09:00
BaiyuZhuUnited StatesCalifornia High School12/12/2022 18:44:00
MichaelGeorgievskiNorth MacedoniaHigh School Gimnazija Dobri Daskalov13/12/2022 09:36:00
GolamIshtiakBangladeshKushtia Government College13/12/2022 16:40:00
MatejGelevNorth MacedoniaYahja Kemal13/12/2022 20:59:00
ŽanAmbrožičSloveniaGimnazija Kranj14/12/2022 12:22:00
AlptürkEskiTurkeyErbakır Science High School14/12/2022 13:20:00
ArdaÜnverTurkeyKocaeli Bahcesehir High School of Science and Technology15/12/2022 18:22:00
PuneethAIndiaAllen Carrer Institute18/12/2022 05:53:00
JaiveerSinghIndiaLBS Senior Secondary School19/12/2022 17:09:00
VisheshSehrawatIndiaFIITJEE22/12/2022 10:10:00
MateuszKamińskiPolandVI High School in Cracow (VI Liceum Ogólnokształcące w Krakowie)23/12/2022 19:36:00
PeterAndolšekSloveniaGimnazija Bežigrad23/12/2022 21:47:00
PaniniIndiaLakshya International Academy24/12/2022 14:13:00


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