PC2022 Problem 1 – Intermediate results, week 8

There will be no more hints. The final deadline for the solutions of the Problem 1 has passed, and a few students with small mistakes have given a chance to fix their mistakes within a day.

By 17th January 2022, 13:00 GMT, there are 1054 participants from 78 countries. 186 solutions to P1 were submitted, out of which 79 were correct.

Correct solutions by university students:

First nameSurnameCountrySchool/UniversityDate time
YuechenZhuChinaPeking University21/11/2021 13:53:00
AlessandroRezziItalyUniversity of Padova21/11/2021 17:59:00
Zhening LiEddie ChenCanada/United StatesMassachusetts Institute of Technology22/11/2021 06:17:00
TasukuOnoJapanHarvard University22/11/2021 17:17:00
TarunAgarwalIndiaHasn’t started yet22/11/2021 18:16:00
AmeyaDeshmukhIndiaIIT Bombay23/11/2021 07:47:00
Yeswanth NarayanaPatnanaIndiaIndian institute of technology Madras23/11/2021 08:59:00
IsaacWuAustraliaUniversity of Melbourne25/11/2021 05:03:00
KyleBomeislUnited StatesRutgers University27/11/2021 03:49:00
Cheng WeiLinTaiwanNational Cheng Kung University29/11/2021 09:05:00
JaroslavHermanCzech RepublicCharles University01/12/2021 21:12:00
VictorLequinFranceÉcole Normale Supérieure PSL04/12/2021 20:10:00
ArhaanAhmadIndiaIndian Institute of Technology, Bombay04/12/2021 21:30:00
RicardsKnipsisLatviaUniversity of Manchester05/12/2021 00:46:00
ViníciusFerreira RodriguesBrazilUniversidade de São Paulo05/12/2021 03:54:00
ErikSünderhaufGermanyTechnical University of Munich05/12/2021 15:18:00
TejasAcharyaIndiaUniversity of Oxford06/12/2021 17:03:00
YanjunZhouChinaUniversity of Oxford07/12/2021 01:03:00
Pom-pomToveySingaporeUniversity of Oxford07/12/2021 21:04:00
DengJinqiuChinaBeijing University of Aeronautics and Astronautics08/12/2021 14:36:00
KevinYouUnited StatesCarnegie Mellon University12/12/2021 01:48:00
Ameya VikramaSinghIndiaIndian Institute of Technology Bombay12/12/2021 11:51:00
QianLinChinaUniversity of Oxford14/12/2021 15:31:00
IlariMäkinenFinlandAalto University14/12/2021 18:02:00
DaoxinZhongSingaporeUniversity of Oxford16/12/2021 21:46:00
SoumyadeepSarmaIndiaIndian Institute of Science20/12/2021 12:52:00
YunGuCHINATianjin University01/01/2022 18:01:00
DanielSchillerGermanyRuprecht-Karls-Universität Heidelberg05/01/2022 14:45:00
SimonSelgEstoniaTartu Ülikool11/01/2022 09:07:00
KaarelPaalEstoniaTalTech15/01/2022 20:59:00
ShofarSnoSurinameAnton de Kom University of Suriname16/01/2022 19:05:00
PushpRajIndiaIIT DELHI17/01/2022 10:34:00

Correct solutions by pre-university students:

DavidConstantinescuRomaniaInternational Computer High School of Bucharest21/11/2021 16:58:00
LucaMilaneseItalyLiceo “Leonardo da Vinci”, Terracina21/11/2021 23:04:00
Minh HoàngViet NamHUS High School for Gifted Students22/11/2021 04:31:00
FilipVučićCroatiaI. gymnasium Zagreb22/11/2021 08:57:00
AlexandarRoussevBulgariaFirst Language School23/11/2021 11:26:00
MatejGelevNorth MacedoniaYahja Kemal23/11/2021 22:18:00
SebastiánArévaloEl SalvadorInstituto Emiliani24/11/2021 04:08:00
Vlad-ȘtefanOrosRomania“Grigore Moisil” Theoretical High School24/11/2021 14:10:00
DženanMidžićBosnia and HerzegovinaJU Gimnazija “Bihać”24/11/2021 21:51:00
AdamDžavoronokSlovakiaGymnázium Poštová 925/11/2021 17:30:00
GabrielMorais BarrosBrazilMaster26/11/2021 18:14:00
Absur KhanSiamBangladeshGap Year27/11/2021 16:46:00
Vladimir GeorgeNeculaRomaniaInternational Computer High School of Bucharest05/12/2021 02:15:00
KanishkPrakharIndiaCity Montessori School Gomtinagar Campus-205/12/2021 09:34:00
MayankAnandIndiaFIITJEE05/12/2021 17:52:00
MatheusFelipe Ramos BorgesBrazilColégio Christus05/12/2021 21:30:00
FelipeSouza Lima RochaBrazil(Gap)05/12/2021 21:30:00
AlptürkEskiTurkeyErbakır Science High School06/12/2021 05:25:00
YI-TINGLINTaiwanTaichung First Senior High School06/12/2021 14:50:00
KarthikPrakashIndiaVaels International School07/12/2021 10:33:00
EmirAkdağTurkeyBahcesehir Highschool of Science and Technology11/12/2021 09:13:00
WatcharakornSuttipongThailandTriam Udom Suksa School11/12/2021 13:15:00
GigiTsirekidzeGeorgiaLEPL Kutaisi Andria Razmadze physics and mathematical public school N4111/12/2021 18:23:00
RhythmKediaIndiaLord Buddha Public school12/12/2021 12:26:00
VukHipSerbiaMathematical Grammar School12/12/2021 12:28:00
David MichaelIndraputraIndonesiaSMAK Penabur Gading Serpong12/12/2021 14:37:00
SamSooterUnited StatesHomeschooled12/12/2021 16:15:00
MariusFrijaMoldovaLT „Orizont”12/12/2021 20:29:00
KaanDereTurkeyBahcesehir High School for Science and Technology12/12/2021 21:04:00
Ahmet BahadırTRABZONTurkeyKabatas Erkek High School14/12/2021 18:38:00
DivyanshPandeyIndiaKV Picket18/12/2021 17:30:00
GurbhitChaurakotiIndiaKV INDIAN MILITARY ACADEMY DEHRADUN18/12/2021 17:39:00
ChengkaiYuChinaThe High School Affiliated to Renmin University of China19/12/2021 12:51:00
AkshatShrivastavaIndiaKrishna public school, nehru nagar19/12/2021 20:15:00
YehyunChoiUnited StatesWestlake High School20/12/2021 09:42:00
Miguel IsaíasDoradea MeléndezEl SalvadorInsituto Emiliani20/12/2021 19:27:00
Balázs CsabaKovácsHungaryHatvani Bajza József Gimnázium24/12/2021 16:28:00
Hoang DuongVu NgoViet NamHUS High school for Gifted Student25/12/2021 19:56:00
Emerson FranzuaAldana GavarreteHondurasSchool26/12/2021 04:39:00
Faraz AhmedSiddiquiIndiaHoly Family High School26/12/2021 19:40:00
AbhiramCherukupalliIndiaDisha Delphi Public School26/12/2021 19:49:00
Victor-IoanDumbravăRomania“Mircea cel Bătrân” National College26/12/2021 20:38:00
YijunLinChinaHigh School Attached to Herbin Normal University28/12/2021 23:40:00
SarthakPandaIndiaFIITJEE Bhubaneswar07/01/2022 06:42:00
ThachNguyenViet NamLe Hong Phong HCMC High School for the Gifted09/01/2022 10:01:00
AkanshKhandelwalIndiaNarayana12/01/2022 12:39:00
GeoKalfovBulgariaFirst Private Mathematical High School16/01/2022 14:23:00


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