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International Olympiad in Informatics


Last modified: 2023-11-25 by zachary harden
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[International Olympiad in Informatics]
image by Zoltan Horvath, 07 February 2016

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"IOI is an annual competitive programming competition for secondary school students. It is the second largest olympiad, after International Mathematical Olympiad, in terms of number of participating countries. The contest consists of two days of computer programming and problem-solving ofalgorithmic nature. Students at the IOI compete on an individual basis, with up to four students competing from each participating country. The idea of initiating international olympiads in informatics for school students was proposed to the 24th General Conference of the United Nations Educational, Scientific and Cultural Organization (UNESCO) in Paris by the Bulgarian delegate Professor Blagovest Sendov in October 1987. This plan was included into the Fifth Main Program of UNESCO for the biennium 1988-1989 (Section 05 215). In May 1989, UNESCO initiated and sponsored the firstInternational Olympiad in Informatics (IOI).The first olympiad was held in Bulgaria in 1989 and it has been an annual contest ever since"
Sources:  and
For additional information go to: IOInformatics (official website)
Esteban Rivera, 25 January 2016

The Flag

The flag is the logo in yellow letters over a red horizontal flag, as seen here.
Esteban Rivera, 25 January 2016

I noticed in the photographs online, though, that the letters of the logo are fimbriated blue against the red field.
Randy Young, 25 January 2016

Letter shapes are well done, but there should be the outlines (in black or dark blue, I'm not quite sure) - see the source photo.
Tomislav Todorović, 26 January 2016

I viewed at least two other similar photographs online showing a national delegation holding the IOI flag in front of them. In each case, the design of the flag was the same: the letters "ioi" in gold, fimbriated blue, against a red field. As I said, though, I'm still learning how to do fimbriations, and I would be happy to see someone else take my graphic and improve upon it.
Randy Young, 26 January 2016

The photo Esteban linked to seems to show that the red is dark. The acronym "IOI", especially as it is set on the logo (and on the flag), is also a nod to binary numbers 101.
António Martins, 07 February 2016

I tried to create a fimbriation around the letters based on logo provided by Esteban. I also reduced size of letters on the flag. I think it's more similar to what that picture shows.
Zoltan Horvath, 07 February 2017