September Challenge 2015
Count Steps in Matrix, Chain of Doughnuts
October Challenge 2015
Time measure, Count Subarrays, Who dares to be a millionaire
September Lunchtime 2015
Sum of palindromic numbers
May Challenge 2018 Division 2
Minimum Deletions, Dibs on Fibs, Xor Again, Mighty Friend
December Challenge 2018 Division 2
Chef and Interactive XOR, Chef and Interactive Contests, Chef and An Ideal Problem
January Challenge 2019 Division 2
Lucky Number Game, Fancy Quotes
June Cook-Off 2019 Division 2
Multiple Choice Exam, Ants and Anteaters
India