PC2023 Problem 5 – Intermediate results, week 8

There will be no more hints for Problem 5 will be published on 6th May 2023, 13:00 GMT.There will be no more hints. The Problem 5 will remain open for submissions until t 23:59 GMT, 21st May 2023.

By 21th May 2023, 13:00 GMT, there are 1309 participants from 92 countries. 35 solutions to P5 were submitted, out of which 32 were correct. Next update: the best solutions and the final results, tentatively on the 31st May 2023.

Correct solutions by university students:

First nameSurnameCountrySchool/UniversityP4 date time
DD/MM/YY 00:00:00
ZiyueWangChinaHebei University of Technology26/3/23 13:55
MarinusLehmannGermanyUniversity of Potsdam26/3/23 16:11
AnindyaGuriaIndiaIndian Institute of Science26/3/23 17:04
LukasSchichtGermanyUniversity of Rostock26/3/23 18:24
LukaPassek-KumeričkiCroatiaUniversity of Zagreb27/3/23 16:27
GilRonenIsraelHebrew University of Jerusalem28/3/23 14:40
Bayram AlpŞahinTurkeyBogazici University29/3/23 11:10
AlessioBiccariItalyLa Sapienza2/4/23 18:36
BowenTanChinaJilin Normal University4/4/23 06:49
KerimCherkezovTurkmenistanTurkmen State University16/4/23 20:11
KonstantinTripunovskiNorth MacedoniaUniversity of Ljubljana – Medical Faculty24/4/23 13:45
SoumyadeepSarmaIndiaIndian Institute of Science14/5/23 17:52

Correct solutions by pre-university students:

GuotaoHeChinaNanning No.3 High School26/3/23 14:01
TomasBabelisLithuaniaVilniaus jėzuitų gimnazija26/3/23 15:09
LincolnLiuHong KongSha Tin College26/3/23 15:14
RhythmKediaIndiaMB International26/3/23 17:38
Ilan, Ivan (Team)Mihelja, HegedićCroatiaXV. gymnasium Zagreb, V. gymnasium Zagreb27/3/23 00:09
Chung WangLamHong KongSt. Paul’s Co-educational College27/3/23 14:27
EppuLeinonenFinlandMunkkiniemen yhteiskoulu27/3/23 15:15
Ching YeungKwokHong KongShing Kung Hui Tang Shiu Kin Secondary School3/4/23 13:40
DženanMidžićBosnia and HerzegovinaJU Gimnazija “Bihać”3/4/23 16:48
YuchiZhangChinaUnited World College Changshu China6/4/23 12:55
AlexandarRoussevBulgaria12/4/23 16:58
GuangyuanChenSingaporeRaffles Institution17/4/23 16:10
ZilangShuChinaBeijing National Day School23/4/23 13:15
MichałKołodziejczykPolandI High School in Zielona góra25/4/23 19:43
Elias KoschierMichail OgnyanovAustriaERG Donaustadt7/5/23 12:21
RuichengMaChinaHarbin Normal University High School9/5/23 17:29
Yu ChengLimMalaysiaTaylor’s College13/5/23 13:36
FilipBaciakPoland1 LO w Chrzanowie14/5/23 08:06
MateuszKamińskiPolandVI High School in Cracow19/5/23 07:48
Harold ScottChuaPhilippinesPhilippine Science High School – Main Campus18/5/23 14:43

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, Tanzania, Thailand, Turkey, Turkmenistan, Ukraine, United Arab Emirates, United Kingdom, United States, Uzbekistan, Vietnam