July Challenge 2018 Division 2
No Minimum No Maximum, Magic Set, Strike or Spare, No Strings Attached, Reach Equilibrium
June Lunchtime 2018 Division 2
Summary Power, Counting Pretty Numbers
June Challenge 2019 Division 2
Sum and GCD, Chef and Ingredients, Guddu on a Date, Chef and Proxy, Road Signs
October Challenge 2019 Division 2
Even Edges, Missing Number, Bacterial Reproduction, Chef and Maximum Star Value, Array Modification, Operations on a Matrix, Phone Prices
November Challenge 2019 Division 1
Physical Exercise, Smallest Beautiful Number, From Zero to Infinity
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