Free Services
Free
Free access to a database of programming problems and educational materials · access to programming competitions · automatic solution testing
Checked 4 Oct 2026
Free access to a database of programming problems and educational materials · access to programming competitions · automatic solution testing
Checked 4 Oct 2026
For educational institutions and charitable organisations · quota can be adjusted to institutional needs
Checked 4 Oct 2026
Custom quota for needs not met by published plans
Checked 4 Oct 2026
Plan-dependent quotas for contests, evaluations, courses, plagiarism analysis, upsolve, team contests, SSO, discussions, administrators, members and problems
Checked 4 Oct 2026