Regulations - Statutes


  1. Preamble
  2. Definitions
  3. Objectives and Means
  4. Office Bearers and Tasks
  5. Host Nomination and Selection
  6. Responsibilities of Present Host
  7. Competition, Judging and Awarding
  8. Revisions of the Regulations

Section 1: Preamble


The Statutes, the Explication and the Appendices together form the Regulations of the International Olympiad in Informatics.


Details of procedures and responsibilities are described in the Appendices.


The official working language for the IOI is the English language.


In the scope of the IOI the concept 'informatics' means the domain which is also indicated by 'computer science', 'computing science', and 'information technology', but not the domain 'computer engineering'.


In the Statutes the following abbreviations mean:

BP = Board of Patrons
GA = General Assembly
IC = International Committee
IS = International Secretariat
IOI = International Olympiad in Informatics
IOI'n-1 = Past IOI issue, preceding IOI'n by one year
IOI'n = Present IOI issue in the year n
IOI'n+1 = Future IOI issue, following IOI'n by one year
SC = Scientific Committee


Section 2: Definitions


The International Olympiad in Informatics (as a continuing sequence) is a yearly international informatics Competition for individual Contestants from various invited Countries, accompanied by a social and cultural program.


Each individual International Olympiad in Informatics is the temporary issue of the IOI in a certain Host Country in year n (IOI'n).((Each annual instant of the IOI is a temporary issue in a certain Host Country in year n (IOI'n).))


A Host consists of Responsible Ministry(ies), Institution(s), and/or Corporation(s) in a Country. A Host Country can have the status of Past Host, Present Host, Future Host or Host Candidate.


A National Delegation is a team headed by a Delegation Leader. If the status of the National Delegation is:


A Contestant is a student in a school for secondary education in the period September to December in the year before IOI'n, and is under the age of twenty at the day of the Opening Ceremony of IOI'n.


For the IOI a Country is a nation, state or territory which has an officially recognized relation with United Nations or UNESCO.


An Observer is a representative of:


Section 3: Objectives and Means

The main objectives to be accomplished by the IOI are:


To discover, encourage, bring together, and challenge young people, who are exceptionally talented in the field of informatics.


To foster friendly international relationships among computer scientists and informatics educators.


To bring the discipline of informatics under the attention of young people.


To stimulate the organization of informatics competitions for students in schools for secondary education.


To stimulate Countries to organize a future issue of the IOI in their Country.


Section 4: Office Bearers and Tasks


The International Committee (IC) is a long-term, standing committee, which consists of eleven members: three immediate Past Host representatives of IOI'n-3, IOI'n-2, and IOI'n- 1, one Present Host representative of IOI'n, three immediate Future or Candidate Host representatives of IOI'n+1, IOI'n+2, and IOI'n+3, representatives of three Countries delegated by the IC for two years, and the Secretary-General of the IOI (see S4.2).

The IC acts in the general spirit of the Regulations.

In meetings the IC has the voting procedure of "one person one vote".

The IC has the tasks:

The members of the IC have the commitment to share information about their tasks.

The IC may invite a representative of the IS for the IC meetings.


The Secretary-General of the IOI (as a continuing position) is the Chair of the IC. Until the Opening Ceremony of IOI'n the Secretary-General of the IOI proceeds from the Host Team of IOI'n-1. After the opening ceremony of IOI'n the Secretary-General of the IOI proceeds from the Host Team of IOI'n. The Secretary-General of the IOI is not a member of a National Delegation.


In default of the Secretary-General of the IOI the role of Secretary-General is taken up by one of the IC members present.


The International Secretariat (IS) is a secretariat of the IOI which is established by volunteer Ministry(ies), Institution(s), and/or Corporation(s) in a Country for at least three years. The IS is nominated by the GA.

The IS has the tasks:


The Board of Patrons (BP) is a permanent body, constituted by the IC from respected members of the world of information technology and business. The BP has the necessary profile and influence:


The Host Team of IOI'n is the committee which is nominated by the Host of IOI'n and which acts on behalf of this Host. The Manager of IOI'n is the Chair of the Host Team. The Manager of IOI'n is not a member of a National Delegation.

The Host Team includes as members:

The tasks of the Present Host and Host Team are drawn up in the Statements of section S6.


The Scientific Committee of IOI'n (SC) is a temporary committee, which is nominated by the Host of IOI'n and is composed of experts in informatics and/or informatics education from the Host Country. The Chair of the SC is a member of the Host Team. Members of the SC are not members of National Delegations.

The SC has the tasks:

The Chair of the SC, or a SC member, has the task to attend IOI'n-1 as an observer.


The General Assembly (GA) is a temporary, short-term committee during IOI'n, which is composed of the Delegation Leaders and the Deputy Leaders of all Participating Countries, a representative of the IS, the Chair of the SC, the Secretary-General of the IOI, the Manager of IOI'n and the President of the GA.

The GA:

The GA has the tasks:


The President of the GA of IOI'n is the Chair of the GA. In voting procedures the President does not vote, but the President may cast the deciding vote. The President is a member of the Host Team. The President is not a member of a National Delegation.


The GA has at least six private meetings:

1st meeting: before the first competition day;
2nd meeting: at the beginning of the First Competition Day;
3rd meeting: on the day after the First Competition Day;
4th meeting: at the beginning of the Second Competition Day;
5th meeting: on the day after the Second Competition Day;
6th meeting: before the Awarding and Closing Ceremony.

The GA meetings are obligatory for at least one Leader per Participating Country, a representative of the IS, Chair of the SC, Secretary-General of the IOI, Manager of IOI'n, and the President of the GA.

The GA meetings are accessible for members of SC, members of Host Team, and Observers.

Guests may access a meeting of the GA after permission of the President of the GA.

The GA meetings are not accessible for Contestants.


The role of Vice-President of the General Assembly is taken up by the President of the Host Team of the Country offering IOI'n+1. In default of this future President the Teamleader of the Host Country for IOI'n+1 will be Vice-President. The Vice-President takes over by default of the President.


Section 5: Host Nomination and Selection


A Country that is capable and willing to organize an issue of the IOI in a certain year in their Country, has to write a Letter of Intent to the Secretary-General of the IOI.


The IC makes a selection and a List of candidates for future issues of the IOI. A Country has the status of Host Candidate after the List has been approved by the GA.


The Secretary-General of the IOI writes an Official Invitation to the Host Candidate for a future issue of the IOI, at least two years before that issue.


A Host Candidate receives the status of Future Host when the Invitation is accepted by the Host Candidate and confirmed by writing to the Secretary-General of the IOI, at least two years before that issue of the IOI. The IC informs the GA on the first General Assembly after this confirmation.


The Present Host is the Host which prepares and realizes IOI'n.


Section 6: Responsibilities of Present Host


The Present Host of IOI'n is obliged to organize and realize IOI'n in accordance with the Regulations.


The Present Host is obliged to establish a Host Team which acts on behalf of the Host.


The Present Host is obliged to establish a SC.


The Present Host is obliged to prepare


The Present Host is obliged to organise a meeting of the IC in the Host Country, at least six months before IOI'n. This IC meeting has the tasks:


The Present Host is obliged to invite National Delegations, Observers from new Countries which applied for an invitation, an Observer from the IS, an Observer from UNESCO, an Observer from IFIP, an Observer from the BP, and Observers from the Future Hosts of IOI'n+1 and IOI'n+2, and to send information about the Present Host, Program, Location, Registration, Country, Competition Procedures and Judging Procedures to all invitees, at least four months before IOI'n.


The costs for travel to and from the city where the IC has its meeting, or where IOI'n is located, are at expense of all IC members and all Participants, Observers and Guests. Costs for board & lodging during the IC meeting, or during IOI'n, are at expense of the Present Host for all IC members, all Participants and Observers of new Countries, UNESCO, IFIP and BP. Other Observers and Guests have to pay a reasonable fee which is fixed by the Present Host.


The Present Host is obliged to produce a report of IOI'n and send this to the Delegation Leaders of Observing and Participating Countries, members of the IC, IS, and BP, no later than six months after IOI'n. A draft report should be sent to the members of the IC no later than three months after IOI'n.


Section 7: Competition, Judging and Awarding


The informatics Competition will take place during two Competition Days, which both are directly preceded and followed by a non-Competition Day.


The Host gives the Contestants the opportunity to practice with the competition equipment, or comparable equipment, in advance.


On both Competition Days the Host prevents that GA members meet and/or come across Contestants before and during the Competition.


On both Competition Days the IOI Competition and Judging follows the general scheme in statements S7.5 to S7.13. This scheme is elaborated in the Competition Procedures and Judging Procedures.


The SC presents printed Competition Tasks and Judging Procedures to the meeting of the GA for approval. The Delegation Leaders translate the approved Competition Tasks to their national languages, without any additional information. The translated tasks will be posted in public during IOI'n.


The Contestants are asked to perform the Competition Tasks which are given to them, together with the translations, without any oral information.


During the Competition each Contestant works independently on a private desk with a appropriate equipment, printed Competition Procedures, and writing-paper.


During the Competition Contestants obey the Competition Procedures.


At the beginning of the Competition the GA is present for one hour to answer questions of the Contestants about the Competition Tasks. The questions are to be answered by the GA with "yes", "no" or "no comment".


After the one-hour-question-time the GA is free until the Judging.


The Judging Procedures are carried out directly after the Competition.

The Contestant and the Delegation Leader or Deputy Leader of the same Country, and an Evaluator of the Host Country meet at the desk and computer of the Contestant.

The evaluation of the Competition Tasks is executed according to the Judging Procedures. For each item which is evaluated, the Evaluator proposes a number of points. The outcome of the evaluation of each item is registered on Evaluating Forms. When the Leader does not agree with an evaluated item, this is registered on the Evaluation Form.


If a Leader does not agree on one or more items, the Leader should be available for a consultation between a member of the SC, and the Evaluator the day after the Competition Day.

The consultation can lead to a new proposal of points. If the Leader does not agree this will be registered on the Evaluation Form with his arguments.

The arguments will be discussed in the SC and the SC makes a final proposal of points.

If this final proposal is not accepted by the Leader, the Leader can bring the controversy to the GA.

The GA decides after being informed by the Chair of the SC and the Leader.


The number of points of each Contestant will not be made public before the Awarding and Closing Ceremony.


After both Competition Days and before the IOI Awarding the SC makes a proposal to the GA of the distribution of the medals over the Contestants on base of their score. About half of the number of Contestants will receive a medal:

Thereafter the meeting of the GA determines the scores and the awards of the Contestants.

Section 8: Revisions of the Regulations


Revisions of the Statutes are prepared and proposed by the IC and are adopted by the GA by majority of votes.


Revisions of the Explications and the Appendices can be proposed by the GA or IC and are to be adopted by the GA by majority of votes.
Created on MAY-12-95, last updated on JUN-02-95 by from CIL
Last update on JUN-23-95 by Richard Verhoeven