Many readers are familiar with the International Mathematical Olympiad (IMO), a pinnacle in the yearly calendar of mathematics competitions. Here we introduce its cousin in computer science, the International Olympiad in Informatics (IOI). The International Olympiad in Informatics is one of the newer Science Olympiads, beginning in 1989 in Bulgaria under the leadership of Petar Kenderov. In its...

The International Olympiad in Informatics currently provides a model which is imitated by the majority of contests for secondary school students in Informatics or Computer Science. However, the IOI model can be criticized, and alternative contest models exist. To support the discussion about contests in Computer Science, several dimensions for characterizing and classifying contests are suggested.

Освещена конкурсно-олимпиадная деятельность как один из инструментов образовательного процесса. Дан анализ участия студентов филиала Дальневосточного федерального университета в г. Находке конкурсах и олимпиадах за период 2019 Представлены формы такой деятельности, показана важность проведения данных мероприятий. Использование конкурсно-олимпиадной деятельности дает возможность педагогу раскрыт...

We investigate a coin-weighing puzzle that appeared in the 1991 Moscow Math Olympiad. We generalize the puzzle by varying the number of participating coins, and deduce an upper bound on the number of weighings needed to solve the puzzle that is noticeably better than the trivial upper bound. In particular, we show that logarithmically-many weighings on a balance suffice.

The International Olympiad in Informatics is a worldwide contest for high school students, with a strong focus on creativity and ingenuity in algorithm design. Here we describe the activities in Australia that support and complement this contest, including a range of programming competitions, more accessible penand-paper competitions, and other enrichment and training activities. Sample problem...

We investigate a coin-weighing puzzle that appeared in the all-Russian Mathematics Olympiad in 2000. The methods of analysis differ from classical coin-weighing puzzles. We generalize the puzzle by varying the number of participating coins, and deduce a complete solution. Perhaps surprisingly, the objective can be achieved in no more than two weighings regardless of the number of coins involved.

Communication of schoolchildren in social networks, on the one hand, contributes to their socialization and development communication skills, but, other creates socially dangerous precedents threats. The new Federal State Educational Standard for Basic General Education actualizes importance developing ethical legal norms interaction Internet among schoolchildren. On distance learning portal Om...

Coursebooks discussing graph algorithms usually have a chapter on minimum spanning trees. It usually contains Prim’s and Kruskal’s algorithms [1, 2] but often lacks other applications. This type of problem is rarely present at informatics competitions or in tests in secondary or higher level informatics education This article is aimed at describing some competition tasks that help us prove that...