F - Sugoroku2
F - GCD or MIN
D - Skate
F - Digits Paradise in Hexadecimal
8VC Venture Cup 2016 - Final Round A. XOR Equation
8VC Venture Cup 2016 - Final Round B. Factory Repairs
Experimental Educational Round: VolBIT Formulas Blitz I. Parking Lot
Experimental Educational Round: VolBIT Formulas Blitz Q. Pyramids
Codeforces Round 344 (Div. 2) C. Report