Helvetic Coding Contest 2017 online mirror
Difference between en6 and en7, changed 1,003 character(s)
Hello CodeForces! This year again, I'd like to invite you to the online mirror of an open championship of Switzerland called the Helvetic Coding Contest. A mirror was also held last year — see here: [contest:690]↵
![ ](http://mirror.codeforces.com/predownloaded/88/34/883466426e5e80f5ef8d8f0e1d74e1c96c394365.png)↵

[The Helvetic Coding Contest](http://hc2.ch/) is a yearly contest held at [the EPFL](http://epfl.ch/) in Lausanne by the [PolyProg](http://polyprog.epfl.ch/) association. The contest itself took place on April the 1st, but the online mirror is scheduled on [**Sunday, 28th of May, 11:05 Moscow time**](https://www.timeanddate.com/worldclock/fixedtime.html?msg=Helvetic+Coding+Contest+2017+online+mirror&iso=20170528T0805&ah=4&am=30). The duration is 4:30.↵

Rules:↵

- you can participate in teams or individually (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.↵

You will help us [find the cow Heidi](http://hc2.ch/img/poster/poster.png) and participate in some April-Fools-Day confusion. The contest will feature 5 series of 3 related tasks with increasing difficulty (easy/medium/hard). Sometimes it may be the case that a solution for the hard version solves all of them, but usually not. We think that the problemset is diverse and interesting, and while the contest is ACM-style, you will find that some problems are not so standard. Most easy&medium problems are even solvable in Python, so you can also recommend this contest to your newbie friends :)↵

Acknowledgments: the problems were set by Christian Kauth, [user:boba5551,2017-04-17], [user:meret,2017-04-17], [user:DamianS,2017-04-17] and myself.↵
Thanks also go out to people who helped with the statements and testing: [user:maksay,2017-04-17], Michalina Pacholska (who also draws the cows), Benjamin Schubert, Aleksa Stanković, Ruofan Zhou; [user:Tatiana_S,2017-05-23] for Russian translations and [user:KAN,2017-05-23] for CodeForces coordination,↵
as well as everyone involved in the actual onsite contest, who are too many to name here. We also thank the sponsors [Open Systems](http://open.ch/) and [AdNovum](http://www.adnovum.ch/). Lastly, thanks to [user:MikeMirzayanov,2017-04-17] for CodeForces and Polygon (which was used to prepare the problems).↵

Finally, in a bit of autopromotion, note that you can use [Hightail](http://mirror.codeforces.com/blog/entry/13141) to automatically test your solutions :) Good luck!↵

**
EDITAfter-contest UPDATE:**↵
[>>> Editorial <<<](http://dj3500.webfactional.com/helvetic-coding-contest-2017-editorial.pdf)↵
------------------↵
Feel free to ask questions in this topic.↵

Thanks to everyone who participated! We hope you have enjoyed the problems. Congratulations to the winners:↵

1. ★SweeT DiscoverY★: [user:dotorya,2017-05-28], [user:zigui,2017-05-28], [user:cki86201,2017-05-28] (solved all problems!)↵

2. japan-cookie: [user:sigma425,2017-05-28], [user:sugim48,2017-05-28], [user:yosupo,2017-05-28] (solved all problems!)↵

3. HSE Bluebell: [user:Um_nik,2017-05-28], [user:Kronecker,2017-05-28]↵

4. Veteran: [user:I_love_Hoang_Yen,2017-05-28], [user:chemthan,2017-05-28], [user:RR_PPAP,2017-05-28]↵

5. m(_ _)m: [user:tmt514,2017-05-28], [user:Shik,2017-05-28], [user:dreamoon,2017-05-28]↵

6. never red: [user:abyssmall,2017-05-28], [user:gongy,2017-05-28], [user:gendelpiekel,2017-05-28]↵

7. [user:rng_58,2017-05-28]↵

8. (`・ω・´): [user:FizzyDavid,2017-05-28], [user:OhWeOnFire,2017-05-28]↵

The winners of the onsite contest (Petr Team) also solved all problems.↵

See you again next year!

History

 
 
 
 
Revisions
 
 
  Rev. Lang. By When Δ Comment
en8 English dj3500 2021-01-01 23:52:47 44
en7 English dj3500 2017-05-28 15:54:22 1003 Tiny change: 'uck!\n\n**EDIT:**\n[>>> ' -> 'uck!\n\n**After-contest UPDATE:**\n[>>> '
en6 English dj3500 2017-05-28 15:44:54 202 Tiny change: ' luck!\n\n[Editori' -> ' luck!\n\n**EDIT:**\n[Editori'
en5 English dj3500 2017-05-23 19:49:23 55 Tiny change: 'ere set by: Christian' -> 'ere set by Christian' (published)
en4 English dj3500 2017-04-17 01:08:48 2 Tiny change: '365.png)\n[The Hel' -> '365.png)\n\n[The Hel'
en3 English dj3500 2017-04-17 01:08:32 60
en2 English dj3500 2017-04-17 01:06:18 818
en1 English dj3500 2017-04-16 23:49:28 2758 Initial revision (saved to drafts)