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31st International Olympiad in Informatics
About 31st International Olympiad in Informatics
The International Olympiad in Informatics (IOI) is an annual international informatics competition for high school students from various invited countries, accompanied by social and cultural programmes. It is one of the five international science Olympiads and is one of the most prestigious computer science competitions in the world.
The 31st International Olympiad in Informatics (IOI 2019) will be held in Baku, Azerbaijan from 4 to 11 August. The IOI 2019 is financially supported by the Ministry of Education of the Republic of Azerbaijan and is powered by a global partnership with Acer.
Azerbaijan - Recommended stamp issues
WOPA+ recommended stamp issues
Music Giants VII - Iron Maiden |
Issued: 12.01.2023 |
›Great Britain |
Effigy of H.S.H Prince Albert II - Green Letter Rate |
Issued: 03.01.2023 |
›Monaco |
St. Elizabeth’s Church in Parnu |
Issued: 06.01.2023 |
›Estonia |
Dimitrie Cantemir, 350th Anniversary of his Birth |
Issued: 16.01.2023 |
›Romania |
Honour Guard of the President of the Slovak Republic |
Issued: 02.01.2023 |
›Slovakia |
Lunar New Year - Year of the Rabbit |
Issued: 05.01.2023 |
›Jersey |
Year of the Rabbit |
Issued: 05.01.2023 |
›Guernsey |
Veteran Tractors |
Issued: 04.01.2023 |
›Aland Islands |
Medicinal Plants |
Issued: 03.01.2023 |
›Romania |