December Cook-Off 2017
Beautiful Array, Football Match, Minimum SubArray
December Lunchtime 2017
Days in Month, Strange Function
January Cook-Off 2018
Multiple of 3, Survive in ChocoLand
January Lunchtime 2018
Chef and Game with Sequence, Chef and Escaping from the Labyrinth
August Challenge 2018 Division 1
Princess and Dragons, Lonely Cycles, Interactive Matrix, Modular GCD, Coordinate Compression
September Challenge 2018 Division 1
AND Square Subsegments, Table Game, Bad Shuffle
November Challenge 2018 Division 1
Appy Loves One, Good Median, Magician versus Chef 2
October Challenge 2018 Division 1
Beautiful Bricks, Coprime Components, Chef and Surprise Chessboard, Appy and Balloons , Minimize Digitsum
October Lunchtime 2018 Division 1
Coloring the Grid, Weird Question, Niceness of the Arrays
January Challenge 2019 Division 1
Yet Another Problem About Sequences, Different Neighbours, Distinct Pairs
February Challenge 2019 Division 1
Chef and Secret Ingredients, Maximize the Tax, Art of Balance, Yet Another Tree Problem, Xor Decomposition, Guess It Right, Manhattan Rectangle
April Challenge 2020 Division 2
Strange Number, Squared Subsequences, Unit GCD, Sell All the Cars, COVID Pandemic and Long Queue
