Codeforces Round #540 (Div. 3)

02-20

Codeforces Round #412 (rated, Div. 2, base on VK Cup 2017 Round 3)

12-11

Codeforces Round #516 (Div. 2, by Moscow Team Olympiad)

10-29

Codeforces Round #409 (rated, Div. 2, based on VK Cup 2017 Round 2)

10-24

Codeforces Round #404 (Div. 2)

10-02

Codeforces Round #403 (Div. 2)

09-29