October Challenge 2019 Division 2
Even Edges, Phone Prices, Operations on a Matrix, Chef and Maximum Star Value, Missing Number, Array Modification
December Challenge 2019 Division 2
Plus Multiply, That Is My Score!
February Challenge 2020 Division 2
Hard Cash, School of Geometry, 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, COVID Pandemic and Long Queue
UWCOI 2020 (Rated for all)
Find maximum in an Array, Button Pairs
July Challenge 2020 Division 2
Chef and Card Game, Chef and Strings
September Challenge 2020 Division 2
A Problem on Sticks, Ada Matrix
December Challenge 2020 Division 2
Even Pair Sum, Vaccine Production, Vaccine Distribution
January Challenge 2021 Division 3
Fair Elections, Chef and Division 3, Encoded String
March Challenge 2021 Division 3
Interesting XOR!, No Time to Wait, Space Arrays, Chef and Groups
April Challenge 2021 Division 3
Chef and Dice, Valid Pair, World Record, Strong Language
September Long 2022 Division 3 (Rated)
Speed Limit Test, Bob at the Bank, Good Pairs
India