January Challenge 2018
K-Concatenation, Maximum Score, Rectangle, String Merging, Partition the numbers, A humongous Query
January Cook-Off 2018
Multiple of 3, Make array great again, Survive in ChocoLand
January Lunchtime 2018
Chef and Escaping from the Labyrinth, Chef and Game with Sequence
March Challenge 2018 DIV 1
Pishty and Triangles, Chef and Easy Problem, Chef and Gcd Queries, Mix the Colors, Minions and Voting
March Lunchtime 2018 Division 1 (Unrated)
Queries with GCD, Partitions, Three Integers, Magic Elements
Vietnam