September Mega Cook-Off 2018 Division 2
ATM Machine, Make a Permutation, OneTwo
September Challenge 2018 Division 2
Magician versus Chef, Chef and Adventures
December Challenge 2018 Division 1
(Challenge) Delete DAG, Max and Electrical Panel, Directing Edges, Chef and Interactive XOR
November Challenge 2018 Division 2
Chef and Happiness, Chef and Difficult Contests, Magician versus Chef 2, Good Median, Appy Loves One, Chef and Ridges, Chef, Primes and Trees (Challenge)
October Challenge 2018 Division 2
Beautiful Bricks, Chef and Serves, Byte to Bit
January Challenge 2019 Division 1
Partition the Graph, A Pizza Slice, Distinct Pairs, Different Neighbours, Yet Another Problem About Sequences
February Challenge 2019 Division 1
Chef and Secret Ingredients, Art of Balance
February Cook-Off 2019 Division 1
Max Range Queries, Chef and Secret Password, Chef and Party
India