SOI 2014 - Round 1: Deadline soon

Just to inform you that you have just a few more days to submit your tasks for the first round of SOI 2014.

We would like to stress, once more, that you should also submit if you only solved single tasks. You do not need to solve everything in order to participate in SOI. Moreover if you have any last minute questions, please do not hesitate to post in the forum or send us an email (

Deadline First Round SOI 2014 : Saturday, 30th November 2013 at 23:59

Also note that you can (and should) submit earlier, so if you have problems with the submission, you can contact us. The submission forms will be closed after the deadline.

It is, if unavoidable, possible to submit multiple times in case you find bugs in your submission. We will only look at the last submission for each task though.

Please make sure that you

  • mention the taskname, the programming language and your username at the beginning of each textfile you submit
  • filled in all the details about your user account (postal address, phone number, school, teacher, etc.)

CEOI 2013

Zentraleuropäische Informatikolympiade 2013

v.l.n.r Serge, Fabian, Benjamin, Timon, Sandro.

Wir durften dieses Jahr wieder als Gastnation an der Zentraleuropäische Informatikolympiade teilnehmen; sie fand im wunderschönen Primošten, in Kroatien statt. Die Schweiz wurde vertreten durch die Teilnehmer Benjamin Schmid, Fabian Lyck und Timon Stampfli, begleitet von Sandro Feuz und Serge Balzan als Leiter.

SOI 2014 Kick Off

SOI 2014 starts now - Tasks online!


The tasks of the first round of the Swiss Olympiad in Informatics 2014 are online. Young computer enthusiasts can show their programming skills until November 30th and exchange their ideas with others. If you are amongst the best participants, you can win prizes, a spot in our training camp in Davos or even a ticket to the International Olympiad in Informatics 2014 held in Taiwan. To participate, sign up for an account on this webpage and submit your solutions until the end of November. Make sure to check out the rules and general information about SOI: here. Have fun solving the tasks!

Nombres Symétriques
La Tour de Guet
Collier de bonbons
Les Chambres d’Hôtel
Police et Voleurs

All participants have to fulfill the following rules:

  • You can participate if you have been born on 1. July 1994 or later and you are enrolled at a swiss school (high-school, vocational school, etc) located in Switzerland during the period September to December 2013.
  • To participate, you need to register at the web page of SOI and set your status to Participant
  • You must participate under your own name.
  • Solve the tasks on your own. We strongly encourage you to study from books and internet but do not copy any solutions directly from these sources.

SOI Video 2013

Many thanks to Benjamin Schmid for creating this video.

SOI Workshops 2013

sign up here:


Invitation to the SOI-Workshops October 5 and 26, 2013

We invite you to our two workshops in preparation for the first round. You are welcome to attend both or just one of the two days. The content of the two days will be largely independent.

Our first workshop takes place on Saturday, October 5, 2013 from 9.30 to 16.00 at ETH Zurich. We will meet on that day at 9.00 at the meeting point in Zurich HB.

A second workshop will be offered on Saturday, October 26, 2013 from 9.30 to 13.00 at the University of Bern. We meet at 9.00 at the meeting point in Bern HB. The afternoon continues with an event offered together with all the other Swiss scientific olympiads.

Syndicate content