August Challenge 2016
Chef and Round Run, Chef and Chocolate
October Challenge 2016
Chef and Keyboard, Big Queries, Chef and Three Dogs
November Challenge 2016
Chef and squares, Task for Alexey, Gift and Chef, Friends Meeting, Count Permutations
July Cook-Off 2016
Chef and Proportion, Chef and Numbers
November Lunchtime 2016
Chef and his Students, Chef and Square Set
July Challenge 2017
IPC Trainers, Calculator , Pishty and tree, Chef and Sign Sequences, Whats in the Name
December Challenge 2017
Chef and Universe, Total Diamonds, Santa Delivering Problem, Chef And his Cake, Chef And Easy Xor Queries, Penalty Shoot-out, Chef and Hamming Distance of arrays
January Challenge 2018
K-Concatenation, Partition the numbers, Rectangle, Maximum Score
February Challenge 2021 Division 2
Frog Sort, Maximise Function
February Lunchtime 2021 Division 3
Daanish and Problems, Average Sorting, Palpal Strings, Smallest Possible Whole Number, Coprime Range
Kyrgyzstan