Getting along with Integer Partitions
Vertical Rooks
Digits Square Board
What’s Next?
Counting Special Sub-Cubes
Nikita and the Game
Codeforces Round 535 (Div. 3) E2. Array and Segments (Hard version)
Codeforces Round 535 (Div. 3) E1. Array and Segments (Easy version)
Codeforces Round 539 (Div. 1) B. Sasha and One More Name
Codeforces Round 540 (Div. 3) F1. Tree Cutting (Easy Version)