May Challenge 2019 Division 2
Matches, Reduce to One, Where to Build the Roads
June Challenge 2019 Division 2
Sum and GCD, (Challenge) SnackDown 99, Chef and Ingredients, Guddu on a Date, Lent Money, Chef and Proxy, Road Signs
July Lunchtime 2019 Division 1 (Unrated)
Delete a Subarray, Professor on a Trip, Two-lane Road
August Cook-Off 2019 Division 1
Rich Substrings, Two Circles
October Challenge 2019 Division 1
Even Edges, Chef and Maximum Star Value, Array Modification
