February Challenge 2020 Division 2
Expected Change, No Change Required, The Theatre Problem, School of Geometry, Hard Cash, (Challenge) Raisins, Long Contest and Cook Off Overlaps, Chef and Railway Stations
February Cook-Off 2020 Division 2
Maximum Subsequence Sum, XOR Game, Chef and Pepperoni Pizza Again, Penalty Shoot-Out II, Tax Slabs
March Cook-Off 2020 Division 1
Maximize Letter Beauty, Escape the Tree , Random Chocolates, A Tree to Remember, Mysterious Sequence
April Cook-Off 2020 Division 1
Simple Operations, Inversions in Permutations
January Lunchtime 2020 Division 2
Construct Array, Bob and His Friends, Chef and Street Food, Under the Tunnels, Folding Paper
February Lunchtime 2020 Division 1
Painter Problem, Swapping to Palindrome, Monsters Battle, Secret Mission
Iran