Every year there is an International Mathematical Olympiad (IMO) for high school students; in 2010 it was held in Kazakhstan, with 517 participants from 97 countries. As every year, they got six problems to solve. Problem 5 of IMO 2010 was proposed by Hans Zantema. He was inspired by some observations in his research in theoretical computer science. This paper presents some of this background, and includes a full solution.
|Journal||Nieuw Archief voor Wiskunde|
|Publication status||Published - 2011|