Rahul Kumar

June Challenge 2020 Division 2

Even Matrix, The Tom and Jerry Game!, Chef and Icecream, Chef and String, 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, A Problem on Sticks, Ada Matrix, Coronavirus Spread 2

August Cook-Off 2020 Division 2

Polygon Relationship, Chef and Work

August Lunchtime 2020 Division 2

Game on a Strip, Mode of Frequencies

October Challenge 2020 Division 2

Positive AND, Replace for X, Covid Run, Chef and Easy Queries

November Challenge 2020 Division 2

Restore Sequence, Ada and Dishes, Iron, Magnet and Wall

January Challenge 2021 Division 2

Fair Elections

December Challenge 2020 Division 2

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

December Cook-Off 2020 Division 2

Self-Destructing Strings, Catch the Thief, Minimum Attendance Requirement

January Cook-Off 2021 Division 2

Prime Tuples, Maximise Islands

December Lunchtime 2020 Division 2 (Unrated)

Three Letters, Sed Sequences, One Zero Swaps

January Lunchtime 2021 Division 2 (Unrated)

Good Grid, Binary Subsequence, Even Differences, Even Sum

October Cook-Off 2020 Division 2

Split the Str Ing, Decreasing Srrnmieeda

October Lunchtime 2020 Division 2

AND Plus OR

Coders' Legacy (Rated for all)

Chef vs Doof

September Cook-Off 2020 Division 2

Bowling Strategy

September Lunchtime 2020 Division 2

GCD operations, Watermelon

Code Ensemble (Rated for Division 2)

Priya and AND

InfInITy 2k20 Division 2 (Rated)

The One Who Knocks!

February Challenge 2021 Division 2

Frog Sort, Team Name, Prime Game, Maximise Function

April Cook-Off 2021 Division 2

Chocolate Monger

April Lunchtime 2021 Division 2

Chef in Heaven , Bench Press

April CodeChef Starters 2021 Division 3 (Rated)

Thief and Police, Chef On Island, Hiring Test

May Cook-Off 2021 Division 2

The Last Problem

May Lunchtime 2021 Division 2

Charges, Tom And Jerry 1

May Challenge 2021 Division 3 (Rated)

Xor Equality, Tic Tac Toe, Modular Equation, Golf, Solubility

June Challenge 2021 Division 2 (Unrated)

Bella ciao, Summer Heat

June Cook-Off 2021 Division 2

The Wave

June CodeChef Starters 2021 Division 3 (Rated)

Total Correct Submissions, Chess Match, Cyclic Quadrilateral

July Challenge 2021 Division 3 (Rated)

XxOoRr, Chef vs Bharat, Optimal Denomination, Maximum Production, Relativity

July Cook-Off 2021 Division 2

XOR-ORED

July Lunchtime 2021 Division 2

Beautiful Pairs

August Challenge 2021 Division 2 (Unrated)

Problem Difficulties, Olympics Ranking

August Cook-Off 2021 Division 2

Different String, Chef and Closure, Equal Difference

CodeChef Starters 10 Division 2 (Rated)

Maximise the Subsequence Sum, Remove One Element

SnackDown 2021 - Online Qualifiers

Lucky Number

CodeChef Starters 11 Division 2 (Rated)

Positive Spewing, The Grid Fill Problem, Obtain the Sum

CodeChef Starters 13 Division 2 (Rated)

Chef in Vaccination Queue, Maximum Light Up, Magical Doors

October Challenge 2021 Division 2 (Unrated)

Longest AND Subarray, MEX-OR

September Lunchtime 2021 Division 2

Balanced and Unique Arrays, Yet another SOD problem

October Lunchtime 2021 Division 2

Chef and Water Car, Exactly N plus 1 Values

SnackDown 2021 - Online Round 1A

Round Robin Ranks , Dance Moves, Min Max LCM

SnackDown 2021 - Online Round 1B

Queens Placement , Largest Laddu, Help Nishant

SnackDown 2021 - Online Pre-Elimination

Product Pain

December Cook-Off 2021 Division 2

Median Minimization, Musical Chairs

December Lunchtime 2021 Division 2

Maximum Trio, Romantic Reversals

CodeChef Starters 30 Division 2 (Rated)

Minimum Coloring, Gift Shop and Coupon, Balanced Reversals

March Cook-Off 2022 Division 2

Fixed Weight, Janmansh at Fruit Market, Equal Mex Splitting, Alternating Divisibility

CodeChef Starters 31 Division 2 (Rated)

XOR and AND, Alternating String, Sign Moves, The Unchanging OR

April Cook-Off 2022 Division 2

Sticks and Rectangles

CodeChef Starters 33 Division 2 (Rated)

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

April Lunchtime 2022 Division 2(Rated)

Buckets Full of Candies, Pair Pain

Starters 35 Division 2 (Rated)

Dark Light

Starters 36 Division 2 (Rated)

Presents for Cheffina

May Lunchtime 2022 Division 2 (Rated)

Bucket and Water Flow , Maximum Pairwise Modular Sum

Starters 48 Division 2 (Rated)

Fill The Grid, Make Palindrome 2

Starters 49 Division 2 (Rated)

High Frequency

Starters 55 Division 3 (Rated)

Balls and Boxes, Permutation Clear, Mean and Median, Broken Phone

September Long 2022 Division 3 (Rated)

Speed Limit Test, Bob at the Bank, Interesting Subarray, Good Pairs

Starters 56 Division 3 (Rated)

K-Subarrays, Nearest Exit, Maximize Colours, Far Away

Starters 61 Division 2 (Rated)

Minimise LCS, Subarray Removal

February Cook-Off 2023 Division 2 (Rated)

Take Not Less, Permutation and Modulus

Starters 77 Division 3 (Rated)

Spreading Charges, Tekken, Concat Palindrome, K Increment Palindrome, Three Numbers

Starters 78 Division 2 (Rated)

Bitwise Equation, Valid Expression

Starters 79 Division 2 (Rated)

One Stone or Two Stones, Add smallest prime factor, Distinct Opposite Sums

Problems Authored (10)

Problems Tested (0)

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Editorials Contributed (1)