March Challenge 2021 Division 3
Chef and Groups, Interesting XOR!, No Time to Wait, Space Arrays
April Challenge 2021 Division 3
Worthy Matrix, Chef and Dice, Valid Pair, World Record, Strong Language
June Challenge 2021 Division 3 (Rated)
Summer Heat, Minimum Subtree Cover, Dual Distance, Bella ciao, Bitwise Tuples, Shortest Route, Minimum Dual Area
July Challenge 2021 Division 2 (Unrated)
XxOoRr, Optimal Denomination, K Path Query
July Lunchtime 2021 Division 2
Beautiful Pairs, Red Alert, Array Rotation Returns
August Cook-Off 2021 Division 2
Which Division, Clear the Array, Chef and Closure, Different String, Equal Difference
August Lunchtime 2021 Division 2
K-th Maximum, Crossing Blocks, Just a Graph
September Cook-Off 2021 Division 2
Chef and Pairwise Distances, Zebra Crossing, Fake Swaps, Adjacency Hatred
SnackDown 2021 - Online Qualifiers
Lucky Number, Maximum Number Of Distinct Elements
CodeChef Starters 11 Division 2 (Rated)
The Grid Fill Problem, Obtain the Sum, Positive Spewing
CodeChef Starters 13 Division 2 (Rated)
Add and Divide, Chef in Vaccination Queue, Maximum Light Up, Make that Array!, Magical Doors
September Lunchtime 2021 Division 2
Interesting Representation, Balanced and Unique Arrays, Alice vs Bob Faceoff, Yet another SOD problem
SnackDown 2021 - Online Round 1B
Queens Placement , Largest Laddu, Help Nishant
India