The 58th International Mathematical Olympiad (IMO) was held in Rio de Janeiro, Brazil on July 12-23 with 111 countries in attendance.

The Iranian students won two gold, three silver and one bronze medals in this competition.

The gold medal winners are Amir Mojtaba Sabour and Ariyo Lotfi Jandaqi, the three silver medalists are Taha Miranzadeh, Mohammad Sadeq Mahdavi and Farhoud Rostam Khani and the bronze medal winner is Soroush Taslimi.

South Korea won this year's world championship for mathematics with six gold medals followed by Vietnam, China, United States and Iran.

The Olympiad is a world mathematics competition for high school students that take place every year.

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