(2) Each team shall organize a team with no more than 8 members, including no more than 6 members (students from middle schools or schools at the same level), 1 team leader and deputy team leader. The exam will be held in two days, with 3 questions each, 4.5 hours each and 7 points each, so the highest score of each player is 42 points.
(3) The official languages of IMO are English, French, German and Russian, and participating countries need about 26 languages. At that time, the team leaders will translate the test papers into the national language and get the approval of the coordination Committee. The marking is first judged by leaders and deputy leaders of various countries, and then negotiated with the Coordination Committee (each coordinator is responsible for marking a test question). If there are differences, the examiners' committee will arbitrate, and the negotiation will be conducted in a trusting and friendly atmosphere.
(4) The number of winners of IMO accounts for about half of the participants, and the winners of the first, second and third prizes are awarded in order of their scores, with an average ratio of 1:2:3. In addition, the examiner's committee can award special prizes to students who have made a very beautiful (meaning simple, ingenious and original) or mathematically meaningful answer to a question.
In order to avoid the interruption of 1980 again, IMO set up a special committee (some translated as venue committee) to determine the host of each session.
According to IMO regulations, the host of each session must send an invitation to all the participating countries in the previous session, and the new participating countries must show their willingness to participate in the competition to the host, and then the host will send an invitation.
Among the countries outside Eastern Europe, Finland was the first to join (1965 7th), and France, Britain, Italy, Sweden and the Netherlands joined in succession in 1960s. 1974, the United States and Vietnam joined. Since then, the number of participating countries has increased year by year, covering Europe, the United States, Asia, Africa and Oceania, and IMO has become a truly global mathematics competition.
1988 In the 29th session, IMO set up an honorary prize for the first time at the suggestion of Hong Kong, and awarded it to those players who got full marks in at least one question although they didn't win gold, silver or bronze medals. This measure greatly mobilized the enthusiasm of all participating countries and their players.
The spirit of IMO is the Olympic spirit: "The important thing is not to win, but to participate." Accordingly, since the 24th 1983, although each team (6 people) has calculated their total scores and knows how many people rank according to the order of total scores, the organizing committee does not award prizes to the team winners, because IMO is only an individual competition, not a team competition.
198 1 22nd, the United States is the host of IMO. Greitzer, chairman of the American Mathematical Olympiad Committee, sent a letter inviting China to participate, and chinese mathematical society wrote back and agreed to participate. Later, he failed to make the trip and only sent visiting scholars from the United States as observers.
1984, at the first meeting of chinese mathematical society's popularization work held in Ningbo, it was decided to send two contestants to participate in the 26th IMO in 1985, so as to learn about the situation and accumulate experience. Due to the hasty selection time, only 1 outstanding students from Beijing and Shanghai were arranged to participate. Results 1 person won the third prize, and their average score with Israel was 17, while their total score was 32. Starting from 1986, China sent six players to participate in the competition.
The brilliant achievements of China athletes have greatly stimulated the enthusiasm of millions of middle school students to learn scientific and cultural knowledge, and also greatly enhanced the sense of national honor of the people of China.