May Cook-off 2018 Division 1
Best Cake Ever, Difficult Choice
July Cook-Off 2018 Division 1
OR Matrix, Chef and GCD Game
April Lunchtime 2018 Division 2
Two vs Ten, The hardest gcd problem
May Challenge 2018 Division 2
S-T Mincut, Mighty Friend, Change the Signs, Minimum Deletions, Xor Again, Not a Convex Hull (Challenge), Fake Binary Search, Dibs on Fibs
June Challenge 2018 Division 1
Binary Board, Archi and Tree, Ways to Work, Expected Buildings, Vision, Two Flowers
May Cook-Off 2019 Division 1
Misha and Nice Sets, Bitsetbaba and Power Grid, Expected Xor, Searching for a Biclique
April Cook-Off 2020 Division 1
Tower Counting, Simple Operations
February Lunchtime 2020 Division 1
Swapping to Palindrome, Monsters Battle, Secret Mission
April Lunchtime 2020 Division 1
Xor Jar Muluk Tar, Triangle Query, Positive Mex
