May Challenge 2018 Division 2
Change the Signs, Minimum Deletions, Xor Again, Fake Binary Search, Dibs on Fibs, Mighty Friend
June Challenge 2018 Division 2
Two Flowers, Vision, Sheokand and String, Binary Shuffle, Naive Chef
November Challenge 2018 Division 1
Chef, Primes and Trees (Challenge), Magician versus Chef 2, Good Median, Appy Loves One
June Challenge 2019 Division 1
Lent Money, Count Arrays, Chef and Ingredients, Chef and His Dish, Intersecting Paths, Sum and GCD
July Challenge 2019 Division 1
Hit the Coconuts, Snake and Apple Tree, Guess the Prime!, Codechef War, Circular Merging
China