Codeforces Round #525 (Div. 2)

12-05

Educational Codeforces Round 55 (Rated for Div. 2)

12-04

Codeforces Round #411 (Div. 2)

11-21

Codeforces Round #410 (Div. 2)

11-03

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

10-29

Codeforces Round #408 (Div. 2)

10-19