April Challenge 2021 Division 3
Worthy Matrix, Binary String MEX, Strong Language, World Record, Valid Pair, Chef and Dice
May Challenge 2021 Division 2 (Rated)
Tree House, Xor Equality, Tic Tac Toe, Modular Equation
January Cook-Off 2022 Division 2
Palindromes Not Allowed, Mean Maximization
CodeChef Starters 24 Division 2 (Rated)
Anti Palindrome, Avoid Contact, Divisors and Reciprocals, Yet Another Constructive Problem
Starters 104 Division 2 (Rated)
Maximise Sum, GCD and LCM
Starters 105 Division 2 (Rated)
Take it Easy, Spooky Sequences, Dull Operation, Wishcraft
Starters 106 Division 2 (Rated)
Playing with OR, Save People, Guess the winner!, Count Possibilities, Reach Anywhere
Starters 109 Division 2 (Rated)
Minimum XOR, Best of N Sets, Chef Lost an Array, Alter Ego, Chroma Swap, Rigged Game
Taiwan