January Challenge 2018
Maximum Score, Rectangle, K-Concatenation
February Challenge 2018
Chef And His Characters, Chef And The Patents, Car-pal Tunnel, Permutation and Palindrome
March Challenge 2018 DIV 2
Chef and Glove, Mix the Colors, A Big Sale
May Lunchtime 2018 Division 2
Trace of Matrix, Count Substrings
May Challenge 2018 Division 2
Mighty Friend, Minimum Deletions, Xor Again, Dibs on Fibs
August Challenge 2018 Division 2
Modular GCD, Spell Bob, Sheokand and Number, Problem Sort
September Challenge 2018 Division 2
Magician versus Chef, War of XORs, Chef and Adventures, Bad Shuffle
November Challenge 2018 Division 2
Chef and Ridges, Appy Loves One, Chef and Difficult Contests, Chef and Happiness
January Challenge 2019 Division 2
Different Neighbours, Lucky Number Game, Distinct Pairs, Chef and Modulo Game, Fancy Quotes
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