Informatics olympiads: challenges in programming and algorithm design

The International Olympiad in Informatics is a world- wide contest for high school students, with a strong focus on creativity and ingenuity in algorithm design. Here we describe the activities in Australia that sup- port and complement this contest, including a range of programming competitions, more accessible pen- and-paper competitions, and other enrichment and training activities. Sample problems are included, along with suggestions for becoming involved