September Challenge 2019 Division 2
Chef and Interesting Subsequences , Easy Fibonacci
September Lunchtime 2019 Division 2
Chef Feeds Cats, Chef and Football Match
October Challenge 2019 Division 2
Array Modification, Phone Prices
December Challenge 2019 Division 2
Binary XOR, That Is My Score!, Easy Subsequence Selection, Plus Multiply
January Challenge 2020 Division 2
Chef and Dynamo, Doraemon, Doofish Matrix, Equality, Breaking Bricks
February Challenge 2020 Division 2
Hard Cash, School of Geometry, No Change Required, The Theatre Problem
March Challenge 2020 Division 2
XOR Engine, Ada Bishop 2, Pintu and Fruits
April Challenge 2020 Division 2
Strange Number, Unit GCD, Sell All the Cars, Leaked Answers (Challenge), COVID Pandemic and Long Queue
February Lunchtime 2020 Division 2
At the Gates, Not All Flavours
Exun Programming Prelims 2019 (Rated for all)
Weird Modulo Problem , Tennis Tournament
UWCOI 2020 (Rated for all)
Button Pairs, Find maximum in an Array
June Challenge 2020 Division 2
Even Matrix, The Tom and Jerry Game!, Chef and Icecream, Chef and String, Chef and Price Control
June Lunchtime 2020 Division 2
Chef and Demonetisation, Increasing Decreasing
India