Italian Olympiad - Open Contest 2025

The Italian Olympiad - Open Contest 2025 is an online mirror of the Italian national programming contest used for selection to the Italian IOI team. The contest features IOI-style tasks with graders and subtasks, available in English and Italian, and uses C++ as the only allowed language. Participants have a 5-hour personal time window within the contest period to solve the problems; rankings are published online and tasks are later added to the training archive for practice and evaluation.

Online ranking and placement; contest tasks are later uploaded to the Italian training website for online evaluation and practice.

The contest is primarily intended for high school contestants but is open to everyone.

Register on the contest website, create a username and password, log in, and start the 5-hour window during the contest period by clicking the start button.