12-09

Codeforces Round 992 (Div. 2) solutions (A-D)

#Codeforces div2

10-16

Educational Codeforces Round 170 (Rated for Div. 2) solutions (A-E)

#Codeforces div2

07-16

Codeforces Round 958 (Div. 2) solutions (A-D)

#Codeforces div2

07-15

Codeforces Round 926 (Div. 2) solutions (A-D)

#Codeforces div2