CS Academy
Solve past contest problems in a clean online editor
CS Academy is a Romanian competitive programming site. You open a problem from a past round, write your solution in the built-in online editor, and submit it to the judge. The archive holds about 110 past contests, from the site's own rated rounds to mirrors of olympiad events such as the Romanian IOI selection.
Free · Login needed · Browser · Intermediate
About CS Academy
The problems are algorithmic and range from easy warm-ups to hard final tasks, so it suits people training for olympiads or regular online contests.
The site runs in the browser, and you need an account to solve problems. New contests seem to have stopped: the latest one in the archive is a mirror of RMI 2023 from October 2023. The archive itself still works.
On Breakpoint since 23 Oct 2026.