The ICPC Northern Eurasia Finals (a.k.a. Northern Eurasia Regional Contest) took place on 13 December 2023. The onsite participants competed on four venues: [St. Petersburg, Russia](https://neerc.ifmo.ru/regional/nef-2023.html#@h2-spb); [Novosibirsk, Russia](https://neerc.ifmo.ru/regional/nef-2023.html#@h2-nsk); [Astana, Kazakhstan](https://neerc.ifmo.ru/regional/nef-2023.html#@h2-kz); and [Kutaisi, Georgia](https://neerc.ifmo.ru/regional/nef-2023.html#@h2-geo).↵
↵
Congratulations to the [medalists](https://neerc.ifmo.ru/archive/2023/standings.html) of the contest:↵
↵
|-|↵
| **Rank** | **Team** | **=** | **Time** |↵
| 🏆 1 | MIPT: Yolki-palki ([user:Pechalka,2023-12-14], [user:Tikhon228,2023-12-14], [user:Kapt,2023-12-14]) | 12 | 1266 |↵
| 🥇 2 | HSE: Youthful Passion Fruit ([user:alexxela12345,2023-12-14], [user:Allvik06,2023-12-14], [user:talant,2023-12-14]) | 10 | 982 |↵
| 🥇 3 | SPb ITMO: pengzoo ([user:iakovlev.zakhar,2023-12-14], [user:golikovnik,2023-12-14], [user:DishonoredRighteous,2023-12-14]) | 9 | 713 |↵
| 🥇 4 | MIPT: Log-rank conjecture ([user:antony191,2023-12-14], [user:receed,2023-12-14], [user:Jatana,2023-12-14]) | 9 | 759 |↵
| 🥈 5 | SPb SU: block of cats ([user:LeoPro,2023-12-14], [user:fastmath,2023-12-14], [user:turmax,2023-12-14]) | 9 | 843 |↵
| 🥈 6 | SPb SU: \\_ -> chill ([user:UnstoppableChillMachine,2023-12-14], [user:D.Pavlenko,2023-12-14], [user:Volkov_Ivan,2023-12-14]) | 9 | 904 |↵
| 🥈 7 | MIPT: In God We Trust ([user:antonis.white,2023-12-14], [user:DmitryGrigorev,2023-12-14], [user:PeregudovSergey,2023-12-14]) | 9 | 935 |↵
| 🥈 8 | MIPT: Shawarmasters ([user:stepanov.aa,2023-12-14], [user:RP-1,2023-12-14], [user:PBBx0,2023-12-14]) | 9 | 1072 |↵
| 🥉 9 | HSE: Muffix Sassif ([user:sevlll777,2023-12-14], [user:crazyilian,2023-12-14], [user:tem_shett,2023-12-14]) | 9 | 1076 |↵
| 🥉 10 | HSE: Drunk Driving in Moscow ([user:Siberian,2023-12-14], [user:die,2023-12-14], [user:Nybik,2023-12-14]) | 9 | 1223 |↵
| 🥉 11 | HSE: am nyam) ([user:vaaven,2023-12-14], [user:Ormlis,2023-12-14], [user:vsinitsynav,2023-12-14]) | 9 | 1368 |↵
| 🥉 12 | MIPT: Wake right ([user:ZorikVar,2023-12-14], [user:ShadowLight,2023-12-14], [user:serg3000,2023-12-14]) | 8 | 905 |↵
↵
As a result, several teams qualified for the ICPC Finals, which will be held in 2024 in Astana, Kazakhstan:↵
↵
|-|↵
| **Rank** | Team | **=** | **Time** |↵
| 🏆 1 | MIPT: Yolki-palki ([user:Pechalka,2023-12-14], [user:Tikhon228,2023-12-14], [user:Kapt,2023-12-14]) | 12 | 1266 |↵
| 🥇 2 | HSE: Youthful Passion Fruit ([user:alexxela12345,2023-12-14], [user:Allvik06,2023-12-14], [user:talant,2023-12-14]) | 10 | 982 |↵
| 🥇 3 | SPb ITMO: pengzoo ([user:iakovlev.zakhar,2023-12-14], [user:golikovnik,2023-12-14], [user:DishonoredRighteous,2023-12-14]) | 9 | 713 |↵
| 🥈 5 | SPb SU: block of cats ([user:LeoPro,2023-12-14], [user:fastmath,2023-12-14], [user:turmax,2023-12-14]) | 9 | 843 |↵
| 13 | Belarusian SU: 1: Last hope ([user:MathBoy,2023-12-14], [user:ne4eHbKa,2023-12-14], [user:VEGAnn,2023-12-14]) | 8 | 944 |↵
| 14 | AITU: jaujurek 3 bala (Biakhmet, Oralkhanov, Kamzabek[user:daukah_,2023-12-14], [user:dimashicpc2023,2023-12-14], [user:nkamzabek,2023-12-14]) | 8 | 1089 |↵
| 15 | Yerevan SU: SD3 ([user:mcdx9524,2023-12-14], [user:Andreasyan,2023-12-14], [user:erankyun,2023-12-14]) | 8 | 1446 |↵
| 16 | MAI: 1 (Inyutin, Belousov, Plyushkin) | 7 | 551 |↵
| 18 | Belarusian SUIR: 1: So Stuffy ([user:kartel,2023-12-14], [user:p3rfect,2023-12-14], [user:romarkovets,2023-12-14]) | 7 | 673 |↵
| 19 | Novosibirsk SU: 1: Avdim last hope ([user:amokrousov,2023-12-14], [user:Lylova,2023-12-14], [user:Timonnable,2023-12-14]) | 7 | 770 |↵
| 21 | Skoltech: Caravella (Morozov, [user:fadeeva.kate.22.03,2023-12-14], Goldman) | 7 | 819 |↵
| 22 | Tbilisi SU: Darwin Nunez (Macharashvili, Pipia, Khvedelidze) | 7 | 834 |↵
↵
It is possible that the ICPC committee will increase the quota and allow more NERC teams to attend the Finals.↵
↵
For the contestants who did not participate onsite, there was an online mirror on Codeforces: [contest:1912]. I would like to especially highlight the teams who scored total during the contest:↵
↵
|-|↵
| **Rank** | **Team** | **=** | **Time** |↵
| 1 | [xinyoudui](https://mirror.codeforces.com/team/144643): [user:emptyhope,2023-12-14], [user:orzdevinwang,2023-12-14], [user:amiya,2023-12-14] | 12 | 842 |↵
| 2 | [HoMaMaOvO](https://mirror.codeforces.com/team/122677): [user:maroonrk,2023-12-14], [user:hos.lyric,2023-12-14], [user:maspy,2023-12-14] | 12 | 1266 |↵
| 3 | [P+P+P](https://mirror.codeforces.com/team/102621): [user:244mhq,2023-12-14], [user:353cerega,2023-12-14], [user:998batrr,2023-12-14] | 12 | 1339 |↵
↵
The problemset was prepared by the jury headed by [user:elizarov,2023-12-14]: [user:cdkrot,2023-12-14], [user:VArtem,2023-12-14], [user:Aksenov239,2023-12-14], [user:goldvitaly,2023-12-14], [user:tourist,2023-12-14], [user:kgeorgiy,2023-12-14], [user:isaf27,2023-12-14], [user:izban,2023-12-14], [user:_LeMur_,2023-12-14], [user:orz,2023-12-14], [user:niyaznigmatul,2023-12-14], [user:PavelKunyavskiy,2023-12-14], [user:pashka,2023-12-14] and Elena Kryuchkova:↵
↵
|-|↵
| Problem | Author | Developer |↵
| [problem:1912A] | [user:Aksenov239,2023-12-14] | [user:Aksenov239,2023-12-14] |↵
| [problem:1912B] | [user:VArtem,2023-12-14] | [user:niyaznigmatul,2023-12-14] |↵
| [problem:1912C] | [user:_LeMur_,2023-12-14] | [user:_LeMur_,2023-12-14] |↵
| [problem:1912D] | [user:elizarov,2023-12-14] | [user:elizarov,2023-12-14] |↵
| [problem:1912E] | [user:VArtem,2023-12-14] | [user:VArtem,2023-12-14] |↵
| [problem:1912F] | [user:orz,2023-12-14] | [user:orz,2023-12-14] |↵
| [problem:1912G] | [user:cdkrot,2023-12-14] | [user:cdkrot,2023-12-14] |↵
| [problem:1912H] | [user:pashka,2023-12-14] | [user:pashka,2023-12-14] |↵
| [problem:1912I] | [user:isaf27,2023-12-14] | [user:isaf27,2023-12-14] |↵
| [problem:1912J] | [user:goldvitaly,2023-12-14] | [user:goldvitaly,2023-12-14] |↵
| [problem:1912K] | Elena Kryuchkova | [user:izban,2023-12-14] |↵
| [problem:1912L] | [user:orz,2023-12-14] | [user:orz,2023-12-14] |↵
↵
You can find the PDF statements [here](https://neerc.ifmo.ru/archive/2023/nef-2023-statement.pdf), and the tutorials [here](https://neerc.ifmo.ru/archive/2023/nef-2023-tutorial.pdf).↵
↵
Finally, you are welcome to share your thoughts on the problemset in the comments. Also please tell me if there are mistakes in this post. Thanks to all of you who participated and attempted our problems!
↵
Congratulations to the [medalists](https://neerc.ifmo.ru/archive/2023/standings.html) of the contest:↵
↵
|-|↵
| **Rank** | **Team** | **=** | **Time** |↵
| 🏆 1 | MIPT: Yolki-palki ([user:Pechalka,2023-12-14], [user:Tikhon228,2023-12-14], [user:Kapt,2023-12-14]) | 12 | 1266 |↵
| 🥇 2 | HSE: Youthful Passion Fruit ([user:alexxela12345,2023-12-14], [user:Allvik06,2023-12-14], [user:talant,2023-12-14]) | 10 | 982 |↵
| 🥇 3 | SPb ITMO: pengzoo ([user:iakovlev.zakhar,2023-12-14], [user:golikovnik,2023-12-14], [user:DishonoredRighteous,2023-12-14]) | 9 | 713 |↵
| 🥇 4 | MIPT: Log-rank conjecture ([user:antony191,2023-12-14], [user:receed,2023-12-14], [user:Jatana,2023-12-14]) | 9 | 759 |↵
| 🥈 5 | SPb SU: block of cats ([user:LeoPro,2023-12-14], [user:fastmath,2023-12-14], [user:turmax,2023-12-14]) | 9 | 843 |↵
| 🥈 6 | SPb SU: \\_ -> chill ([user:UnstoppableChillMachine,2023-12-14], [user:D.Pavlenko,2023-12-14], [user:Volkov_Ivan,2023-12-14]) | 9 | 904 |↵
| 🥈 7 | MIPT: In God We Trust ([user:antonis.white,2023-12-14], [user:DmitryGrigorev,2023-12-14], [user:PeregudovSergey,2023-12-14]) | 9 | 935 |↵
| 🥈 8 | MIPT: Shawarmasters ([user:stepanov.aa,2023-12-14], [user:RP-1,2023-12-14], [user:PBBx0,2023-12-14]) | 9 | 1072 |↵
| 🥉 9 | HSE: Muffix Sassif ([user:sevlll777,2023-12-14], [user:crazyilian,2023-12-14], [user:tem_shett,2023-12-14]) | 9 | 1076 |↵
| 🥉 10 | HSE: Drunk Driving in Moscow ([user:Siberian,2023-12-14], [user:die,2023-12-14], [user:Nybik,2023-12-14]) | 9 | 1223 |↵
| 🥉 11 | HSE: am nyam) ([user:vaaven,2023-12-14], [user:Ormlis,2023-12-14], [user:vsinitsynav,2023-12-14]) | 9 | 1368 |↵
| 🥉 12 | MIPT: Wake right ([user:ZorikVar,2023-12-14], [user:ShadowLight,2023-12-14], [user:serg3000,2023-12-14]) | 8 | 905 |↵
↵
As a result, several teams qualified for the ICPC Finals, which will be held in 2024 in Astana, Kazakhstan:↵
↵
|-|↵
| **Rank** | Team | **=** | **Time** |↵
| 🏆 1 | MIPT: Yolki-palki ([user:Pechalka,2023-12-14], [user:Tikhon228,2023-12-14], [user:Kapt,2023-12-14]) | 12 | 1266 |↵
| 🥇 2 | HSE: Youthful Passion Fruit ([user:alexxela12345,2023-12-14], [user:Allvik06,2023-12-14], [user:talant,2023-12-14]) | 10 | 982 |↵
| 🥇 3 | SPb ITMO: pengzoo ([user:iakovlev.zakhar,2023-12-14], [user:golikovnik,2023-12-14], [user:DishonoredRighteous,2023-12-14]) | 9 | 713 |↵
| 🥈 5 | SPb SU: block of cats ([user:LeoPro,2023-12-14], [user:fastmath,2023-12-14], [user:turmax,2023-12-14]) | 9 | 843 |↵
| 13 | Belarusian SU: 1: Last hope ([user:MathBoy,2023-12-14], [user:ne4eHbKa,2023-12-14], [user:VEGAnn,2023-12-14]) | 8 | 944 |↵
| 14 | AITU: jaujurek 3 bala (
| 15 | Yerevan SU: SD3 ([user:mcdx9524,2023-12-14], [user:Andreasyan,2023-12-14], [user:erankyun,2023-12-14]) | 8 | 1446 |↵
| 16 | MAI: 1 (Inyutin, Belousov, Plyushkin) | 7 | 551 |↵
| 18 | Belarusian SUIR: 1: So Stuffy ([user:kartel,2023-12-14], [user:p3rfect,2023-12-14], [user:romarkovets,2023-12-14]) | 7 | 673 |↵
| 19 | Novosibirsk SU: 1: Avdim last hope ([user:amokrousov,2023-12-14], [user:Lylova,2023-12-14], [user:Timonnable,2023-12-14]) | 7 | 770 |↵
| 21 | Skoltech: Caravella (Morozov, [user:fadeeva.kate.22.03,2023-12-14], Goldman) | 7 | 819 |↵
| 22 | Tbilisi SU: Darwin Nunez (Macharashvili, Pipia, Khvedelidze) | 7 | 834 |↵
↵
It is possible that the ICPC committee will increase the quota and allow more NERC teams to attend the Finals.↵
↵
For the contestants who did not participate onsite, there was an online mirror on Codeforces: [contest:1912]. I would like to especially highlight the teams who scored total during the contest:↵
↵
|-|↵
| **Rank** | **Team** | **=** | **Time** |↵
| 1 | [xinyoudui](https://mirror.codeforces.com/team/144643): [user:emptyhope,2023-12-14], [user:orzdevinwang,2023-12-14], [user:amiya,2023-12-14] | 12 | 842 |↵
| 2 | [HoMaMaOvO](https://mirror.codeforces.com/team/122677): [user:maroonrk,2023-12-14], [user:hos.lyric,2023-12-14], [user:maspy,2023-12-14] | 12 | 1266 |↵
| 3 | [P+P+P](https://mirror.codeforces.com/team/102621): [user:244mhq,2023-12-14], [user:353cerega,2023-12-14], [user:998batrr,2023-12-14] | 12 | 1339 |↵
↵
The problemset was prepared by the jury headed by [user:elizarov,2023-12-14]: [user:cdkrot,2023-12-14], [user:VArtem,2023-12-14], [user:Aksenov239,2023-12-14], [user:goldvitaly,2023-12-14], [user:tourist,2023-12-14], [user:kgeorgiy,2023-12-14], [user:isaf27,2023-12-14], [user:izban,2023-12-14], [user:_LeMur_,2023-12-14], [user:orz,2023-12-14], [user:niyaznigmatul,2023-12-14], [user:PavelKunyavskiy,2023-12-14], [user:pashka,2023-12-14] and Elena Kryuchkova:↵
↵
|-|↵
| Problem | Author | Developer |↵
| [problem:1912A] | [user:Aksenov239,2023-12-14] | [user:Aksenov239,2023-12-14] |↵
| [problem:1912B] | [user:VArtem,2023-12-14] | [user:niyaznigmatul,2023-12-14] |↵
| [problem:1912C] | [user:_LeMur_,2023-12-14] | [user:_LeMur_,2023-12-14] |↵
| [problem:1912D] | [user:elizarov,2023-12-14] | [user:elizarov,2023-12-14] |↵
| [problem:1912E] | [user:VArtem,2023-12-14] | [user:VArtem,2023-12-14] |↵
| [problem:1912F] | [user:orz,2023-12-14] | [user:orz,2023-12-14] |↵
| [problem:1912G] | [user:cdkrot,2023-12-14] | [user:cdkrot,2023-12-14] |↵
| [problem:1912H] | [user:pashka,2023-12-14] | [user:pashka,2023-12-14] |↵
| [problem:1912I] | [user:isaf27,2023-12-14] | [user:isaf27,2023-12-14] |↵
| [problem:1912J] | [user:goldvitaly,2023-12-14] | [user:goldvitaly,2023-12-14] |↵
| [problem:1912K] | Elena Kryuchkova | [user:izban,2023-12-14] |↵
| [problem:1912L] | [user:orz,2023-12-14] | [user:orz,2023-12-14] |↵
↵
You can find the PDF statements [here](https://neerc.ifmo.ru/archive/2023/nef-2023-statement.pdf), and the tutorials [here](https://neerc.ifmo.ru/archive/2023/nef-2023-tutorial.pdf).↵
↵
Finally, you are welcome to share your thoughts on the problemset in the comments. Also please tell me if there are mistakes in this post. Thanks to all of you who participated and attempted our problems!
