December Challenge 2018 Division 2
Chef and Interactive Contests, Chef and An Ideal Problem
November Challenge 2018 Division 2
Chef and Difficult Contests
August Challenge 2019 Division 2
Dilemma, Football, Distribute Apples
October Challenge 2019 Division 2
Chef and Maximum Star Value, Array Modification, Phone Prices
November Challenge 2019 Division 2
Hard Sequence, Weapon Value
December Challenge 2019 Division 2
Plus Multiply, That Is My Score!
February Challenge 2020 Division 2
Long Contest and Cook Off Overlaps, Hard Cash, School of Geometry, No Change Required, The Theatre Problem
March Challenge 2020 Division 2
XOR Engine, Pintu and Fruits
April Challenge 2020 Division 2
Strange Number, Sell All the Cars, COVID Pandemic and Long Queue
May Challenge 2020 Division 2
Coronavirus Spread, Isolation Centers
January Cook-Off 2020 Division 2
Exam Cheating, Chef Chick
January Lunchtime 2020 Division 2
Bob and His Friends, Chef and Street Food
February Challenge 2021 Division 3
Frog Sort, Team Name, Chef and Meetings, Prime Game, Maximise Function, Highest Divisor
India