August Challenge 2015
Cooking Machine, Aditi and Magic Trick
September Challenge 2015
Chain of Doughnuts, Count Steps in Matrix
October Challenge 2015
Count Subarrays, Who dares to be a millionaire
August Cook-Off 2015
Chef and the Wildcard Matching
December Challenge 2018 Division 2
Max and Electrical Panel, Chef and Interactive Contests, Chef and An Ideal Problem
October Challenge 2018 Division 2
Chef and Serves, Byte to Bit
February Challenge 2020 Division 2
The Theatre Problem, School of Geometry, Hard Cash
India