May Challenge 2018 Division 2
Mighty Friend, Change the Signs, Minimum Deletions, Xor Again, Fake Binary Search, Dibs on Fibs, S-T Mincut
June Challenge 2018 Division 2
Binary Shuffle, Naive Chef, Sheokand and String, Expected Buildings, Ways to Work, Vision, Two Flowers
July Challenge 2018 Division 1
Pizza Delivery, No Minimum No Maximum, Gears
September Challenge 2018 Division 1
AND Square Subsegments, Selinas the Chefs Falling on the Tree, Table Game, Bad Shuffle
November Challenge 2018 Division 1
Appy Loves One, Magician versus Chef 2, Good Median
October Challenge 2018 Division 1
Appy and Balloons , Beautiful Bricks, Minimize Digitsum, Chef and Surprise Chessboard
February Challenge 2019 Division 1
Art of Balance, Maximize the Tax, Yet Another Tree Problem, Xor Decomposition, Chef and Secret Ingredients, Guess It Right, Manhattan Rectangle
March Challenge 2019 Division 1
Chef and Soccer, Cheating on Queue, Yet Again a Subarray Problem
April Challenge 2019 Division 1
Offer for Chef, Kira Loves Palindromes, Mininum XOR over Tree, Playing with Numbers, Subtree Removal, Edgy
