October Challenge 2015
Count Subarrays, Who dares to be a millionaire, Spheres, Time measure
November Challenge 2015
Eugene and function, Chef and cakes
December Challenge 2015
Chef and the stones, Plane Division, Oracle Devu and Longest Common Subsequence
January Long Challenge 2016
Rupsa and the Game, Churu and Balls, Chef and Time Machine, Devu and Perfume
March Challenge 2016
Palindromic substrings, Chef And Special Dishes, maximize the sum
May Challenge 2016
Sereja and GCD 2, Chef and math
September Challenge 2016
Chef and digits of a number, Faded Palindromes, Chef and calculation
October Challenge 2016
Chef and Keyboard, Fenwick Iterations, Chef and Three Dogs
