August Challenge 2015
Gravity Guy, 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
December Challenge 2015
Chef and the stones, Oracle Devu and Longest Common Subsequence
August Cook-Off 2015
Chef and the XORed Number , Chef and the Wildcard Matching
July Challenge 2016
Andrash and Stipendium, Chef and Robots Competition, Chefland and Electricity
May Challenge 2020 Division 2
Coronavirus Spread, Isolation Centers
India