May Challenge 2014
Dynamic Trees and Queries, Compilers and Parsers, Stone, Chef-jumping, Chef and Strange Matrix
June Challenge 2014
Little Elephant and Blocks, Maxim and Progressions, Chef and Functions, Chef and Digit Jumps, DARTS501, Chef and Subarray, Sereja and Arcs, Two Companies, Guessing Game, Forgot Password
July Challenge 2014
Little Elephant and Painting, Lucky Game, Dish Owner, Reach The Point, Count Substrings, Chef and Rectangle Genome, Chef and Frogs, Garden Game
September Challenge 2014
Flooring, Fun with Rotation, Rectangle Query, Fibonacci Numbers on Tree, Chef and Left-Right, Chef and Swaps, Chef and Rainbow Array - 2, Sereja and Bubble Sort, Factorisation, Chef and sequence
November Challenge 2014
Chef and Churu, The Spelling Problem, Let us construct palindrome, Chef and Red Black Tree, Distinct Characters Subsequence, Sereja and Order, Fombinatorial, Chef and Words, Chef and Segment Game, Sereja and Permutations
June Lunchtime 2014
Coprime Triples, The Smallest Pair, Dynamic Inversion
March Challenge 2015
Counting on a Tree, Matrix, Sign Wave, Devu and his Class, Random Number Generator, Sereja and Random Array, Chef and Problems, Chef and Notebooks, Count Substrings
