The 29^th International Olympiad in Informatics was held in Tehran, Iran from July 28^th to August 4^th.  The event brought together contestants from over 80 countries and regions.  Senior 3 students Mr. Hou Tin Chau, Mr. Kai Cheong Choi, and Mr. Cho Hou Tang were selected at the local preliminary competition as representatives of Macao.  Mr. Hou Tin Chau won the silver medal and Mr. Cho Hou Tang won the bronze medal at the Olympiad.  The 2017 Olympiad witnessed the most impressive performance to date from contestants of Macao.

The International Olympiad in Informatics (IOI) is an academic competition among high school students.  The event was first proposed by Bulgarian professor Dr. Sendov at the 24^th UNESCO congress in October of 1987.  The first International Olympiad in Informatics was held in May of 1989 in Pravetz, Bulgaria.  Subsequent Olympiads are held in different countries every year and have become an important academic competition in the international arena. 

The IOI is held in two rounds.  Contestants receive three topics in each round and are required to complete their analysis of the topics and finish programming or debugging tasks within five hours.