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SWISS OLYMPIAD IN INFORMATICS


 * SWISS OLYMPIAD IN INFORMATICS

 * About
   * News
   * Agenda
   * Team
   * Awarenessteam
   * Partners
   * Contact
 * Train
   * Overview
   * Wiki
   * Workshops
   * Task Archive
   * Ladders
 * Compete
   * First Round 2023-2024
   * Rules 2023-2024
 * Win
   * Medals
   * IOI Videos
   * SOI Photos
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 * Login
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SWISS OLYMPIAD IN INFORMATICS

Contest for high school students in programming and algorithmic problem solving

Get started


NEWS

May 25


RESULTS FINALS 2024

The results of the finals 2024 are in and the teams for IOI, CEOI and WEOI have
been decided.

May 8


SLOVAK CAMP 2024

Impressions from the Slovak Camp 2024.

Mar 21


HELVETIC CODING CONTEST 2024

HC² is a Swiss-wide contest for students.

Mar 14


SECOND ROUND SOI 2024

The results of the second round are available!
More News


TIMELINE

 * FIRST ROUND
   
   15 September – 30 November 2023

 * WORKSHOPS
   
   October – November 2023

 * END OF THE FIRST ROUND
   
   30 November 2023

 * SOI DAY
   
   13 January 2024

 * TRAINING CAMP IN SARNEN
   
   10 – 17 February 2024

 * SECOND ROUND
   
   9 – 10 March 2024

 * FINALS
   
   16 – 17 and 24 – 25 May 2024

 * CEOI IN CZECH REPUBLIC
   
   23 – 29 June 2024

 * EGOI IN THE NETHERLANDS
   
   21 – 27 July 2024

 * IOI IN EGYPT
   
   1 – 8 September 2024


FIRST ROUND

Pick your favourite programming language and solve the tasks of the first round
online.

Tasks for the contest 2024

The first round is conducted online. It starts on 15 September 2023 and ends on
30 November 2023. Everyone who satisfies the conditions of participations can
participate. There are two categories: junior and regular. If you can
participate this year and the following two more years, you are eligible for the
junior round. The five tasks are chosen to promote creativity and good ideas –
prior knowledge in programming and algorithms is useful, but not required.


WORKSHOPS

The graph lecture during the workshops.

Main page for the workshops

The workshops teach you everything you need to know to the tasks of the first
round. You’ll learn about C++ and algorithmic problem solving. The workshops can
be attended free of charge. No matter how much background knowledge you have,
you will certainly benefit.


END OF THE FIRST ROUND

The winners of the first round of SOI 2022

The first round ends on November 30, but SOI just started: the 2H round opens
which will prepare you for the next round and the camp.

We will correct the non-feedback tasks and invite the camp participants in early
December. The official results are revealed during SOI day.


SOI DAY

Creativity task tournament at SOI Day 2018

The SOI Day is an event in Zurich that will take place in January 2023, during
which the results and awards of the first round will be published. Finally,
there will be gripping speeches on topics of computer science.


SARNEN CAMP

Group picture in 2023 in Sarnen

The Sarnen camp is a week-long training camp for top 16 participants from the
regular round, the top 8 participants of the junior round and some guest
countries. There are lectures, practice tasks and training contests, but there
is also ample time to meet the other participants and have lots of fun.


SECOND ROUND

All participants of the first round which qualify for the SOI-camp also qualify
for the second round. Participation at the camp is not mandatory for
participation in the second round.

The second round consists of two parts:

 * 2P (800pts, practical): Two practical exams of 5 hours each.
 * 2H (200pts, homework): solve some full-feedback training tasks starting from
   December 1st


FINALS

The winners of the finals in 2022

The top 12 participants of the second round are invited to the final round in
Bern and Zürich. Additionally, wild cards can be given, usually there are 15
finalists in total. During the final round there are four practical programming
contests that are held on two times two days in Bern and Zürich. In the finals
and at IOI, you will not be allowed to use any language other than C++ or Python
to solve the tasks.


CEOI

The Swiss delegation at CEOI 2022 in Varaždin

http://ceoi.inf.elte.hu/

The CEOI, the Central European Olympiad in informatics, is similar in style to
the IOI. While smaller in scale, getting a medal is usually more difficult than
at IOI.


EGOI

The Swiss delegation at the EGOI 2022 in Antalya

EGOI 2024

The EGOI, the European Girls’ Olympiad in Informatics, is a competition where
countries from all over Europe send their best female participants. The first
edition was held in 2021 in Zurich. The best four female participants at the
second round of this year’s Swiss Olympiad in Informatics will make up the Swiss
team at EGOI.


IOI

Two bronze medals for Switzerland at IOI 2019 in Baku

IOI 2024

Over 80 nations send their 4 best students to compete in the International
Olympiad in Informatics (IOI). The IOI is the most important, but not the only
international event where the best participants of the SOI can meet, exchange
and compete with other teenagers.

See full agenda for a list of all dates.


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