Hello Codeforces! ↵
↵
Back from the dead, we'd like to invite you to the [online mirror](https://mirror.codeforces.com/contest/1970) of the Helvetic Coding Contest, Switzerland open championship! You can find past mirror from [2019](https://mirror.codeforces.com/contest/1184), [2018](https://mirror.codeforces.com/contest/958), [2017](https://mirror.codeforces.com/contest/802), and [2016](https://mirror.codeforces.com/contest/690).↵
↵
The [Helvetic Coding Contest](https://polympiads.ch/HC2/) used to be held yearly at [EPFL](https://www.epfl.ch/en/). This year, the [Polympiads](https://polympiads.ch) association is bringing it back alive! The contest itself took place on April the 13th, but the online mirror is scheduled on Saturday, [4th of May, 09:05 Swiss time](https://www.timeanddate.com/worldclock/fixedtime.html?day=4&month=5&year=2024&hour=10&min=5&sec=0&p1=166). The duration is 4:30.↵
↵
Rules:↵
↵
- you can participate in teams or individually with a single computer (1-3 people),↵
↵
- standard ACM-ICPC rules (no hacking),↵
↵
- the contest is not rated,↵
↵
- if you have participated in the onsite contest, please do not participate in the mirror.↵
↵
Contrary to what the mirror's date might lead you to believe, this year's theme is Harry Potter. It features 7 series of 3 related tasks with increasing difficulty (easy/medium/hard). Note that we do not guarantee that all problems are solvable using python. ↵
↵
Thanks a lot to:↵
↵
- [user:Petr,2024-04-28], [user:Charbel,2024-04-28], [user:ScarletS,2023-11-28], [user:3EVEHAR_KOAVA,2024-04-28], [user:AdrienVannson,2024-04-28], [user:bjornargh,2024-04-28], and [user:zehnsechs,2024-04-28] for setting and/or coordinating the problemsetting,↵
↵
- [user:matrix,2024-04-28] for preparing the technical setup of the contest↵
↵
- [user:paula,2024-04-28], [user:Macdu,2024-04-28], [user:McLovinn,2024-04-28] as well as problemsetters for testing the contest,↵
↵
- All of Polympiads committee and on the day staff for making the contest possible,↵
↵
- [user:MikeMirzayanov,2024-04-28] for creating the amazing Codeforces and Polygon platforms! ↵
↵
↵
↵
**UPDATE**: [Editorial](https://mirror.codeforces.com/blog/entry/129149) is out. Thanks all for participating!↵
↵
**UPDATE 2**: Congratulations to the winners who solved all 21 subtasks:↵
↵
1. [thinking](https://mirror.codeforces.com/team/158975): [user:Ormlis,2024-05-04], [user:Mangooste,2024-05-04]↵
2. [Captain take me!](https://mirror.codeforces.com/team/154156): [user:crazy_sea,2024-05-04], [user:A_zjzj,2024-05-04], [user:275307894a,2024-05-04]↵
3. [japan406364961](https://mirror.codeforces.com/team/157963): [user:Nyaan,2024-05-04], [user:kotatsugame,2024-05-04], [user:risujiroh,2024-05-04]↵
4. [Qingyu Fan Club](https://mirror.codeforces.com/team/158956): [user:xinyoudui,2024-05-04], [user:GapGapGap,2024-05-04], [user:InfiniteStarlight,2024-05-04]↵
5. [Idea Generators Club](https://mirror.codeforces.com/team/158874): [user:tedi_2.0,2024-05-04], [user:Denisov,2024-05-04], [user:Valera_Grinenko,2024-05-04]↵
6. [user:244mhq,2024-05-04]↵
7. [user:jiangly,2024-05-04]↵
↵
**UPDATE 3**: Also huge congratulations to the winners of [the onsite round](https://mirror.codeforces.com/spectator/ranklist/0e3f4002d2169012119f2d83359ada75) (no prewritten code or Internet access was allowed, so the conditions were a bit different):↵
↵
1. Felt smart (might un-participate later) — 20 subtasks↵
2. Nameless Silly Moon — 18 subtasks↵
3. ***IsEvil? — 17 subtasks↵
4. Breakfast Master Toaster — 16 subtasks↵
5. Hairy Stofler — 16 subtasks↵
6. thethingswedoforpizza — 15 subtasks↵
7. huchibuchi — 15 subtasks↵
↵
We hope you enjoyed the problems, please share your thoughts in comments!
↵
Back from the dead, we'd like to invite you to the [online mirror](https://mirror.codeforces.com/contest/1970) of the Helvetic Coding Contest, Switzerland open championship! You can find past mirror from [2019](https://mirror.codeforces.com/contest/1184), [2018](https://mirror.codeforces.com/contest/958), [2017](https://mirror.codeforces.com/contest/802), and [2016](https://mirror.codeforces.com/contest/690).↵
↵
The [Helvetic Coding Contest](https://polympiads.ch/HC2/) used to be held yearly at [EPFL](https://www.epfl.ch/en/). This year, the [Polympiads](https://polympiads.ch) association is bringing it back alive! The contest itself took place on April the 13th, but the online mirror is scheduled on Saturday, [4th of May, 09:05 Swiss time](https://www.timeanddate.com/worldclock/fixedtime.html?day=4&month=5&year=2024&hour=10&min=5&sec=0&p1=166). The duration is 4:30.↵
↵
Rules:↵
↵
- you can participate in teams or individually with a single computer (1-3 people),↵
↵
- standard ACM-ICPC rules (no hacking),↵
↵
- the contest is not rated,↵
↵
- if you have participated in the onsite contest, please do not participate in the mirror.↵
↵
Contrary to what the mirror's date might lead you to believe, this year's theme is Harry Potter. It features 7 series of 3 related tasks with increasing difficulty (easy/medium/hard). Note that we do not guarantee that all problems are solvable using python. ↵
↵
Thanks a lot to:↵
↵
- [user:Petr,2024-04-28], [user:Charbel,2024-04-28], [user:ScarletS,2023-11-28], [user:3EVEHAR_KOAVA,2024-04-28], [user:AdrienVannson,2024-04-28], [user:bjornargh,2024-04-28], and [user:zehnsechs,2024-04-28] for setting and/or coordinating the problemsetting,↵
↵
- [user:matrix,2024-04-28] for preparing the technical setup of the contest↵
↵
- [user:paula,2024-04-28], [user:Macdu,2024-04-28], [user:McLovinn,2024-04-28] as well as problemsetters for testing the contest,↵
↵
- All of Polympiads committee and on the day staff for making the contest possible,↵
↵
- [user:MikeMirzayanov,2024-04-28] for creating the amazing Codeforces and Polygon platforms! ↵
↵
↵
↵
**UPDATE**: [Editorial](https://mirror.codeforces.com/blog/entry/129149) is out. Thanks all for participating!↵
↵
**UPDATE 2**: Congratulations to the winners who solved all 21 subtasks:↵
↵
1. [thinking](https://mirror.codeforces.com/team/158975): [user:Ormlis,2024-05-04], [user:Mangooste,2024-05-04]↵
2. [Captain take me!](https://mirror.codeforces.com/team/154156): [user:crazy_sea,2024-05-04], [user:A_zjzj,2024-05-04], [user:275307894a,2024-05-04]↵
3. [japan406364961](https://mirror.codeforces.com/team/157963): [user:Nyaan,2024-05-04], [user:kotatsugame,2024-05-04], [user:risujiroh,2024-05-04]↵
4. [Qingyu Fan Club](https://mirror.codeforces.com/team/158956): [user:xinyoudui,2024-05-04], [user:GapGapGap,2024-05-04], [user:InfiniteStarlight,2024-05-04]↵
5. [Idea Generators Club](https://mirror.codeforces.com/team/158874): [user:tedi_2.0,2024-05-04], [user:Denisov,2024-05-04], [user:Valera_Grinenko,2024-05-04]↵
6. [user:244mhq,2024-05-04]↵
7. [user:jiangly,2024-05-04]↵
↵
**UPDATE 3**: Also huge congratulations to the winners of [the onsite round](https://mirror.codeforces.com/spectator/ranklist/0e3f4002d2169012119f2d83359ada75) (no prewritten code or Internet access was allowed, so the conditions were a bit different):↵
↵
1. Felt smart (might un-participate later) — 20 subtasks↵
2. Nameless Silly Moon — 18 subtasks↵
3. ***IsEvil? — 17 subtasks↵
4. Breakfast Master Toaster — 16 subtasks↵
5. Hairy Stofler — 16 subtasks↵
6. thethingswedoforpizza — 15 subtasks↵
7. huchibuchi — 15 subtasks↵
↵
We hope you enjoyed the problems, please share your thoughts in comments!
