Please note that there are significant changes in this year’s regulation due to COVID-19 pandemic. See Changes due to COVID-19 pandemic page for more details.

Contest Format

• The APIO 2020 contest is a 5-hour contest with flexible start time within a determined window.
• The competition window will be held between Saturday, 15 August 2020 (08:00 UTC+7) and Monday, 17 August 2020 (08:00 UTC+7).
• Each country may consist of up to 60 students. However, only the top six students will form the official team, according to the contest results.
• Each student starts the contest at the time of their own choice. The start and end time must be within the competition window. Different students from within the same country may start the contest at different times.
• Students are eligible for this contest if and only if they are eligible for IOI 2020.

Medal Distribution

The medal awards are uniquely determined by the following rules:

• The score necessary to achieve a gold medal is the largest score such that at least one twelfth of all official-team contestants receive a gold medal.
• The score necessary to achieve a silver medal is the largest score such that at least one fourth of all official-team contestants receive a silver or a gold medal.
• The score necessary to achieve a bronze medal is the smallest score such that at most one half of all official-team contestants receive a medal.