August Cook-Off 2018 Division 1
GukiZ and Candies, Mixi Game
April Challenge 2018 Division 2
Chef and Array (Challenge), Cutting Plants, Weight of Numbers, Highway Crossing, Count Good Prefixes, Average of Pairs, Workers
May Challenge 2018 Division 2
Not a Convex Hull (Challenge), Dibs on Fibs, Fake Binary Search, Xor Again, Change the Signs, Mighty Friend, S-T Mincut, Minimum Deletions
July Challenge 2018 Division 1
Gears, No Minimum No Maximum, Chef and War with Taran (Challenge)
August Challenge 2018 Division 1
Coordinate Compression , Modular GCD
June Lunchtime 2018 Division 1
Sort the Leaves, Summary Power
March Lunchtime 2019 Division 2
Corrupted Seven-Segment Display, Testing Robot, Pogo Stick Competition
Vietnam