XXI OpenCup GP of Nizhny Novgorod
Time: Feb 7, 11:00 UTC+3
Link: Click (OpenCup login needed to participate)
Authors: Um_nik, Merkurev, KAN, WYOCMWYH with help from ashmelev, Ferume, fake123 and dario2994.
The contest was used for Petrozavodsk training camp and ICPC training camp.
Editorial
Codeforces Round 945 Solution Discussion (with myself)
Atcoder ABC #354 Solution Discussion