April Challenge 2014
Farmer Feb, Chef and Digits, Shortest Path in Binary Trees
May Challenge 2014
Compilers and Parsers, Chef-jumping, Stone
June Challenge 2014
Guessing Game, Forgot Password, Chef and Subarray, Chef and Digit Jumps
August Challenge 2014
Chef and Reversing, Chef and Gift
September Challenge 2014
Chef and Left-Right, Fun with Rotation
October Challenge 2014
Chef and Ground, Magical Girl and Colored Liquid Potions
November Challenge 2014
Distinct Characters Subsequence
July Challenge 2015
Bread, Na2a and lucky stone, Chef and Cube
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, Time measure
December Challenge 2015
Chef and the stones, Oracle Devu and Longest Common Subsequence
September Challenge 2016
Chef and digits of a number, Faded Palindromes, Chef and calculation
May Challenge 2020 Division 2
Coronavirus Spread, Isolation Centers
Indonesia