June Challenge 2020 Division 2
Chef and String, The Tom and Jerry Game!, Chef and Price Control
July Challenge 2020 Division 2
Ada King, Missing a Point, Chef and Card Game, Chef and Strings
August Challenge 2020 Division 2
Chef Wars - Return of the Jedi, Another Card Game Problem, Chef and Linear Chess, Smallest KMP, Chef and Wedding Arrangements
September Challenge 2020 Division 2
Chefina and Swap, Coronavirus Spread 2, Ada Matrix, Find XOR, A Problem on Sticks
July Cook-Off 2020 Division 2
Even-tual Reduction, OR-thodox Distinction
July Lunchtime 2020 Division 2
Chef and Steps, Maximum Candies
August Cook-Off 2020 Division 2
Chef and Work, Polygon Relationship
August Lunchtime 2020 Division 2
Game on a Strip, Mode of Frequencies, Ratings and Rankings
January Lunchtime 2021 Division 2 (Unrated)
Binary Subsequence, Even Differences, Even Sum
April Challenge 2021 Division 3
Chef and Dice, Strong Language, World Record, Valid Pair, Worthy Matrix, Binary String MEX
May Cook-Off 2021 Division 2
The Last Problem, Chef and Subarrays
May Lunchtime 2021 Division 2
Charges, Tom And Jerry 1, Total Components
CodeChef Starters 30 Division 2 (Rated)
Minimum Coloring, Gift Shop and Coupon, Balanced Reversals
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