Arjun Kathail

October Challenge 2020 Division 2

Covid Run, Positive AND, Chef and Easy Queries

November Challenge 2020 Division 2

Restore Sequence, Ada and Dishes, Magical Candy Store, Iron, Magnet and Wall

January Challenge 2021 Division 2

Fair Elections

December Challenge 2020 Division 2

Vaccine Production, Vaccine Distribution, Even Pair Sum, Positive Prefixes, String Operations, Hail XOR

January Lunchtime 2021 Division 2 (Unrated)

Binary Subsequence, Even Differences, Even Sum

November Cook-Off 2020 Division 2

Flip the String, Chef and IPC Certificates

November Lunchtime 2020 Division 2

Gasoline Introduction

February Challenge 2021 Division 2

Frog Sort, Maximise Function, Team Name, Prime Game

March Challenge 2021 Division 2

Maximum Topological Sort, Space Arrays, Paparazzi Gennady, Consecutive Adding, College Life 4, Dense Graph, Interesting XOR!

September Challenge 2021 Division 2 (Unrated)

XOR Equal, Shuffling Parities, Airline Restrictions, Travel Pass

April Cook-Off 2022 Division 2

Chef Goes Shopping, Sticks and Rectangles

CodeChef Starters 33 Division 2 (Rated)

Make Them Equal, Non Adjacent Flips, Distinct Dilemma, Broken Life, Stable Mex

CodeChef Starters 34 Division 2 (Rated)

Binary Mismatch, Average Array, Binary String Xor

Starters 35 Division 2 (Rated)

Jump to Sibling, Dark Light, Chef Find XOR Beautiful, Admins and Shopping

Starters 36 Division 2 (Rated)

Buying Sweets, Presents for Cheffina, Reduce to 1, Valentine Vex

Starters 38 Division 1 (Unrated)

Average Gift

May Lunchtime 2022 Division 1 (Rated)

Balanced 0-1 Tree, Equal After And

June Cook-Off 2022 Division 1 (Rated)

Simple XOR, Split AND Sum

Starters 49 Division 1 (Unrated)

High Frequency, Split The String

Starters 51 Division 1 (Unrated)

Adjacent Xors, Copy and Paste, Different Medians

Starters 61 Division 1 (Unrated)

Weird Subarrays, Subarray Removal

Starters 70 Division 2 (Rated)

Minimum distance between 1s, Prime Reversal, Frequency Array Retrieval

Starters 72 Division 2 (Rated)

No sequence, N Triplets

Starters 74 Division 2 (Rated)

Distinct Values, Lcm hates Gcd, Minimal Inversions, Odd Even Binary String

February Cook-Off 2023 Division 2 (Rated)

Take Not Less, Alice Potter And Dumbledore Army, Permutation and Modulus, Minimum Beauty

Starters 78 Division 2 (Rated)

Bitwise Equation, Valid Expression

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