July Challenge 2015
Sereja and Game 2, MasterChef, Addition and Multiplication
June Lunchtime 2015
Chef and Submatrix, Chef and Two Strings, Chef and Sets
July Cook-Off 2016
Chef and Land, Chef and Array, Chef and Numbers, Chef and Proportion
July Lunchtime 2016
Drumpf for President!, Lumpy - The Bus Driver
August Lunchtime 2016
Studying Alphabet, Lock-Free Stack
March Challenge 2018 DIV 1
Pishty and Triangles, Minions and Voting, Mix the Colors, Chef and Gcd Queries, Chef and Easy Problem, Chef Cuts Tree
April Challenge 2018 Division 1
Chef and Array (Challenge), Vaibhav and Ministers, Chef at the Food Fair, Cutting Plants, S Semi-palindromic, Highway Crossing, Chef and Same Old Recurrence, Count Good Prefixes, Chef and Same Old Recurrence 2
Canada