February Challenge 2018
Lucas Theorem, Chef And Land Labeling, Chef And His Characters, Chef And The Patents, Chef and odd queries, Points Inside A Polygon, Car-pal Tunnel, (Challenge) Biased Committee, Permutation and Palindrome, Broken Clock
April Challenge 2018 Division 2
Weight of Numbers, Workers, Average of Pairs, Count Good Prefixes, Highway Crossing, Cutting Plants, Vaibhav and Ministers, Chef and Array (Challenge)
October Challenge 2019 Division 1
Even Edges, Chef and Maximum Star Value, Array Modification
November Challenge 2019 Division 1
Physical Exercise, Smallest Beautiful Number, From Zero to Infinity, Single Point of Failure, Winning Ways, (Challenge) Coloring Triangulations
