User contributions
- 23:48, 15 July 2018 (diff | hist) . . (+3) . . Informatics competitions (→Olympiad)
- 23:48, 15 July 2018 (diff | hist) . . (+35) . . Informatics competitions (→Olympiad)
- 23:35, 18 July 2015 (diff | hist) . . (-32) . . m How should I prepare? (→Books)