October Cook-Off 2014
The Army, Walk on the Axis
October Challenge 2014
Chef and Ground, Magical Girl and Colored Liquid Potions
November Challenge 2014
Chef and Segment Game, Distinct Characters Subsequence, Chef and Red Black Tree, Let us construct palindrome
January Challenge 2015
Chef and Stones, Sereja and Votes, One Dimensional Kingdoms, Gcd Queries
February Challenge 2015
Chef and Chain, Chef and Equality, Let us play with rank list
August Challenge 2015
Way Out, Gravity Guy, Cooking Machine
May Cook-Off 2015
Devu and friendship testing, Devu and decorating birthday cake
July Cook-Off 2015
Cops and the Thief Devu, Maximize Disjoint Pair Sum
August Lunchtime 2015
Churu and lost string, Minimum Maximum
February Challenge 2017
Chef and His Apartment Dues
December Challenge 2017
Chef And his Cake, Penalty Shoot-out
India