April Challenge 2014
Farmer Feb, Chef and Digits, Shortest Path in Binary Trees
May Challenge 2014
Compilers and Parsers, Chef-jumping
June Challenge 2014
Chef and Subarray, Guessing Game
January Challenge 2015
One Dimensional Kingdoms, Gcd Queries, Sereja and Votes, Chef and Stones
February Challenge 2015
Chef and Strange Formula, Chef and Strings, Let us play with rank list
June Challenge 2015
Chef and Memory Limit, Chef and Polygons
July Challenge 2015
Addition and Multiplication, Rohith and Circles
August Challenge 2015
Gravity Guy, Cooking Machine
May Challenge 2017
Chef and his daily routine
India