June Challenge 2017
A Good Set, Chef and the Feast, Xenny and Coin Rankings, Triplets, Pairwise union of sets, Chef and Prime Queries
July Challenge 2017
Calculator , Two Coins, IPC Trainers, Whats in the Name, Tree Expectancy, Multiplication Program, Pishty and tree, Chef and Sign Sequences
August Long Challenge 2017
Chef and Rainbow Array, Chef and Mover, Greedy Candidates
June Cook-Off 2017
Ada and crayons, SnackUp, Centeroid
June Lunchtime 2017
Maximum Unique Segment, Two Numbers
Canada