PC2026 Problem 1 – Intermediate results – week 7

By the end of the seventh week, there were 1739 registered participants from 100 countries. In total, 355 solutions have been submitted for Problem 1, out of which 166 were correct.

Correct solutions by pre-university students:

First nameSurnameCountrySchoolP1 date time
DD/MM/YY 00:00:00
GeunyeongJangSouth KoreaSeoul Science High School19/10/25 14:19
JihyeongHanSouth KoreaSeoul Science High School19/10/25 15:17
KanishkJainIndiaALLEN KOTA19/10/25 17:55
DominikErdélyiHungaryBudapesti Fazekas Mihály Gimnázium19/10/25 18:28
DariusGraurMoldovaLiceul Orizont19/10/25 18:28
OwenZhouUnited StatesBASIS Scottsdale19/10/25 21:31
RishitGargIndiaSVIS Dwarka19/10/25 22:43
Kai WenTeoSingaporeGap year20/10/25 05:11
AnanmayChauhanIndiaALLEN Kota20/10/25 06:42
DarshSikkaIndiaDPS RK Puram20/10/25 07:07
AlexandruBordeiMoldovaLT “Orizont” Durlesti20/10/25 08:03
DishitAgarwalIndiaModulus Junior College20/10/25 10:06
Badekai Vishruth KrishnaRamachandra BhatIndiaAllen Kota20/10/25 10:08
SvaritJoshiIndiaKhyati World School20/10/25 10:42
AlexSecrieruMoldovaLiceul Teoretic Orizont Durlesți20/10/25 12:55
Monjurul HasanNabilBangladeshGovernment Science College20/10/25 15:13
MahammadJafarliAzerbaijanTechnical-Humanitarian Lyceum20/10/25 15:26
RareșMunteanRomaniaLiceul Teoretic Ioan Jebelean20/10/25 15:37
SiddhaarthDharaniSingaporeGap Year20/10/25 17:47
KanadBhattacharyaIndiaDeeksha STEM20/10/25 19:35
MuradKhalilAzerbaijanBaku Turkish School20/10/25 19:37
Mert AndaçKaranTürkiyehcesehir High School for Science and Technology20/10/25 19:50
LucaGâleaRomaniaNational College Iasi21/10/25 01:27
Yun-ChiehSuTaiwanTaipei Fuhsing Private School21/10/25 03:59
ZhuohengWuUnited StatesPioneer Academy21/10/25 04:27
QingxiangLiaoChinaShenzhen College of International Education21/10/25 04:31
LucasWuUnited StatesDavidson Academy of Reno21/10/25 05:06
VictorSanduMoldovaOrizont21/10/25 07:29
YeonhoLeeSouth KoreaSeoul Science High School21/10/25 11:01
RüzgarKuşaklıTürkiyeBahçeşehir Science and Technology High School21/10/25 13:03
TanayTekadeIndiaSchool of Scholars21/10/25 16:54
AntoninaJareckaPolandII Liceum Ogólnokształcące im. Stanisława Wyspiańskiego w Legnicy21/10/25 17:51
AmritRajIndiaMaa Bharti Sr. Sec. School22/10/25 04:45
YuxuanWangTaiwanTaipei Municipal Chien Kuo High School22/10/25 09:38
AdyanshuPanigrahiIndiaDelhi Public School Dhenkanal22/10/25 11:19
AntoniaRaduRomaniaColegiul National “Mihai Viteazul” Ploiesti22/10/25 12:25
LeeSinHyeokSouth KoreaSeoul Science High School23/10/25 02:36
AkshatSinghIndiaG.S. Modern School23/10/25 08:58
AaravGuptaIndiaAllen Marathalli23/10/25 18:46
MichałZakrzyńskiPolandZespół Szkół Łączności w Gdańsku24/10/25 13:16
AtishayJainIndiaAllen Marathahalli24/10/25 17:31
LuvGuptaIndiaNARAYANA E Techno School, Andheri East24/10/25 18:20
WilliamZarytovPresidential Physics and Mathematics Lyceum No. 23924/10/25 21:43
Emmanuel JamesLafortezaPhilippinesPhilippine Science High School – Main Campus25/10/25 04:24
ArgamTahaUnited StatesJulia R. Masterman Laboratory and Demonstration High School25/10/25 13:25
SounakChakrabortyIndiaDAV Model School, IIT Kharagpur25/10/25 14:54
ArtyomEryominLyceum №2325/10/25 15:11
MahilManiIndiaNarayana25/10/25 15:13
ChetanMalviyaIndiaNarayana e-Techno School, Andheri25/10/25 15:58
ÖmerAkhanTürkiyeBahcesehir Science and Technology High School25/10/25 17:20
VeljkoAdzicSerbiaRacunarska Gimnazija25/10/25 19:10
MatíasPáezArgentinaEES n°626/10/25 00:50
EthanBordaUnited StatesPaul D. Schreiber High26/10/25 01:16
TriLeVietnamVNU-HCM High School for the Gifted26/10/25 06:43
SauryaShresthaNepalSt. Xavier’s College, Nepal26/10/25 11:16
Jana MousaJana MousaSyriaSchool of exellence26/10/25 16:13
SHRESTHSURAIYAIndiaNarayana E-Techno School26/10/25 18:16
RutvikAroraUnited StatesMission San Jose High School26/10/25 18:27
AmeyGhimireNepalTrinity Int’l College26/10/25 18:29
CarloDi LorenzoItalyLiceo Newton Chivasso26/10/25 19:17
AveerSinghIndiaVidyamandir classes GURGAON27/10/25 15:43
PatrykKaczmarczykPolandZespół Szkół Łączności im. Obrońców Poczty Polskiej w Gdańsku28/10/25 10:59
KaanGüngörTürkiyeBahçeşehir Fentek28/10/25 13:57
FedericoRoccaforteItalyIIS Concetto Marchesi29/10/25 21:58
DaviPinheiro TsuchieBrazilObjetivo Integrado30/10/25 22:38
BhargavPatiSingaporeRaffles Institution31/10/25 06:11
LukaSmiljanicSerbiaMathematical Grammar School31/10/25 21:59
LuyifanChinaShanghai Caoyang NO.2 High School1/11/25 15:33
AdityaJakharIndiaBal Bhavan International School1/11/25 23:59
ZeynabMahammadliAzerbaijanTTEL2/11/25 00:01
ToshivChowdharyCanadaWest Vancouver Secondary School2/11/25 06:52
IvanErmolaevSchool No 2044, Moscow2/11/25 11:13
İhsan YağızKaraTürkiyeBahcesehir High School for Science and Technology2/11/25 11:51
AdyanshMishraIndia2/11/25 13:02
NithilanRavikumarIndiaNil3/11/25 11:07
KwonheonLeeSouth KoreaSeoul Science Highschool4/11/25 08:50
ДмитрийСергеев2396/11/25 09:00
DanieleDi Nicola CarenaItalyL.S.S. Alessandro Volta, Milan7/11/25 18:03
StefanoPasqualiItalyLiceo Scientifico F. Vercelli9/11/25 00:00
AngadSharmaIndiasri chaitanya9/11/25 04:43
ArtemNikitinSESC NSU9/11/25 13:30
AndrewRomasPresidential Physics and Mathematics Lyceum No. 2399/11/25 14:27
MichelePeranoItalyLiceo scientifico Pellico-Peano, Cuneo9/11/25 20:26
ArtyomAntonovPPhML 23915/11/25 16:07
AliLavaeiIranShahid Soltani 3 High school15/11/25 17:23
SvyatoslavKlokovPresidential Physics and Mathematics Lyceum No. 23915/11/25 19:10
IvanMoxinANCEO “Phistech-liceum” named after P.L. Kapitsa16/11/25 00:44
AryanLalwaniIndiaGap Year16/11/25 12:53
AshutoshGuptaIndiaAllen Career Institute Pvt. Ltd.17/11/25 13:22
SumitRanjanIndiaAllen Career Institute19/11/25 07:53
VaiibhavGIndiaChinar Public School20/11/25 12:57
MikhailKachayLetovo School21/11/25 21:47
ViktoriiaEgorovaFinlandOlarin koulu22/11/25 08:34
StepanRayskiySESC NSU22/11/25 14:46
WilliamChenChinaShenzhen College of International Education23/11/25 00:24
MaratSafinАНОО “Физтех-лицей им. П. Л. Капицы”23/11/25 09:39
RamKumarIndiaAllen23/11/25 14:25
DenizMakarajiKapitza Lyceum23/11/25 19:30
KangLechengChinaThe High School Affiliated To Beijing JiaoTong University24/11/25 09:44
OsishNiraulaNepalSaint Xavier’s College, Maitighar24/11/25 20:14
AyushTiwariNepalSt. Xavier’s College, Maitighar24/11/25 20:20
AYUSHUTSAVINDIAKautilya CBSE SCHOOL Kota Rajasthan25/11/25 12:54
yanzhanfengChina北京交通大学附属中学25/11/25 14:30
SamratAcharyaNepalSt. Xavier’s College, Maitighar26/11/25 12:08
HaozeLiUnited KingdomWinchester College30/11/25 11:10
SudiptoSenBangladeshSt. Joseph Higher Secondary School30/11/25 16:05
Serazus SalekinSaminBangladeshComilla Victoria Govt. College2/12/25 19:02
TawhidBin OmarBangladeshSt. Joseph Higher Secondary School6/12/25 17:47
AkhmadGimaevMunicipal Budgetary General Education Institution Secondary Comprehensive School of the Nurglino village7/12/25 11:40

Correct solutions by university students:

First nameSurnameCountryUniversityP1 date time
DD/MM/YY 00:00:00
JonathanBurgerGermanyKarlsruher Institut für Technologie19/10/25 13:49
VaibhavVIndiaUnited Institute of Technology19/10/25 15:34
Oscar LuisFerrer LeyvaCubaUniversidad de La Habana19/10/25 16:59
GuyGinzbergIsraelOpen University of Israel19/10/25 19:01
LarranceXingUnited StatesUniversity of Chicago19/10/25 19:59
Ilan MiheljaIvan HegedićCroatiaUniversity of Zagreb, EPFL19/10/25 20:53
ShreyhaanSarkarUnited StatesCornell University20/10/25 03:29
JoshuaWangUnited StatesMIT20/10/25 07:38
ShaoLiuChinaPeking University20/10/25 08:55
EthanLuUnited StatesOhio State University20/10/25 09:26
JerzyGamdzykPolandUniversity of Warsaw20/10/25 17:26
DaniilsKoselevsFranceÉcole Polytechnique20/10/25 23:48
NikhilKodaliUnited StatesUC Irvine21/10/25 00:56
ViníciusFerreira RodriguesBrazilUniversity of Iowa21/10/25 03:33
TrishanjitDoloiIndiaIIT Bombay21/10/25 05:46
AlessandroD’OrazioItalyUniversity of Pisa21/10/25 10:17
YuanWangChinaTsinghua University21/10/25 10:55
KienPhamGermanyLMU Munich21/10/25 11:17
ViktorVukovićCroatiaUniversity of Zagreb21/10/25 18:17
WangYixiChinaHangzhou Dianzi University22/10/25 09:23
KyleBomeislUnited StatesGap Year22/10/25 17:45
KushalThamanUnited StatesStanford University23/10/25 00:10
ThachNguyenUnited StatesUniversity of South Florida23/10/25 03:39
AlonHartIsraelHebrew University of Jerusalem23/10/25 16:53
AndreiPeunyBelarusMIPT23/10/25 18:31
Tejas PenugondaTalha AshrafIndia/PakistanImperial College London/Massachusetts Institute of Technology24/10/25 08:15
Chung WangLamHong KongUniversity of Cambridge24/10/25 17:07
AdityaBhojIndiaIndian Institute of Technology25/10/25 23:46
MehdiNikopour DeilamiFranceEcole Polytechnique26/10/25 00:06
JakubKlimentCzech RepublicCharles University26/10/25 01:53
ArmenGazazyanArmeniaYerevan State University26/10/25 08:42
DavitHayrapetyanArmeniaYerevan State University26/10/25 09:19
Aditya ShankarGargUnited StatesColumbia University27/10/25 06:34
SathyaNistriItalyUniversità di Pisa29/10/25 21:25
AHMETUĞUZTürkiyeHacı Zarife Çelebi-Aygar Anatolian Highschool, (Teacher)31/10/25 10:35
DanielYiUnited StatesUniversity of Maryland College Park1/11/25 08:00
OytunErTürkiyeBoğaziçi University1/11/25 14:05
Frane AnđelićLuka DuplančićCroatiaUniversity of Zagreb, University of Split1/11/25 20:21
Rakib MuhammedSakiBangladeshBrac University1/11/25 22:31
FrancescoGariglioItalyUniversità degli Studi di Torino1/11/25 23:58
SubhojitMajiIndiaIndian Statistical Institute Bangalore Centre2/11/25 00:57
JeevakaarthikDhanabalanSingaporeUniversity of Oxford2/11/25 02:05
DoğanÖnalTürkiyeBoğaziçi University2/11/25 10:09
AdrianRewkowskiBelarusJagiellonian University2/11/25 10:17
EnzoMateriaItalyUniversity of Catania2/11/25 12:09
JakubSchindlerPolandUniversity of Warsaw3/11/25 22:42
Md Mustakim BinAlamNovosibirsk State University3/11/25 23:28
MichałKołodziejczykPolandWarsaw University of Technology6/11/25 17:09
TomisonaOmisoreNigeriaLandmark University Omu Aran8/11/25 19:42
ShaocongSunChinaPeking University11/11/25 10:51
BoruiZhangChinaDalian University of Technology14/11/25 10:55
JerrySunUnited StatesUniversity of Illinois Urbana-Champaign16/11/25 09:00
IgorKravchenkoKubSAU20/11/25 06:46
NargesSafari MajdIranSUT22/11/25 20:24
ConorAppleyardUnited KingdomThe university of Warwick23/11/25 14:18