Aryan

November Challenge 2017

Chef goes Left Right Left, Periodic Palindrome Construction, Villages and Tribes

December Challenge 2017

Total Diamonds, Chef And his Cake, Penalty Shoot-out, Chef and Hamming Distance of arrays

October Lunchtime 2017

Buggy Calculator

December Lunchtime 2017

Days in Month, Strange Function

January Challenge 2018

K-Concatenation, Maximum Score, Rectangle, Partition the numbers

January Cook-Off 2018

Multiple of 3, Survive in ChocoLand

January Lunchtime 2018

Chef and Game with Sequence

February Challenge 2018

Chef And His Characters, Chef And The Patents, Akanksha and End of Semester, Car-pal Tunnel, (Challenge) Biased Committee, Permutation and Palindrome

International Coding League (Rated)

Matrix Game, Stingy Strings

February Cook-Off 2018

Chef and Cook-Off

February Lunchtime 2018

Jumping in the hills

March Challenge 2018 DIV 2

Pishty and Triangles, Chef and Easy Problem, A Big Sale, Mix the Colors, Chef and Glove, Minions and Voting, Minion Chef and Bananas

March Cook-off 2018 Division 1

Chef Goes to the Cinema, Chef Restores a Matrix, Chef Judges a Competition

May Cook-off 2018 Division 1

Best Cake Ever, Secret Recipe

June Cook-Off 2018 Division 1

Archi and Comparsion, Good Permutations

July Cook-Off 2018 Division 2

Encoding Message, OR Matrix, Chef and GCD Game

August Cook-Off 2018 Division 1

GukiZ and Candies

September Mega Cook-Off 2018 Division 1

Make a Permutation

October Mega Cook-Off 2018 Division 1

Binary Nim 2, Pumping Water

December Cook-Off 2018 Division 1

Yalalovichik Numbers

March Lunchtime 2018 Division 1 (Unrated)

Partitions, Chef and Friends, Three Integers, Magic Elements

April Lunchtime 2018 Division 1

Two vs Ten, The hardest gcd problem, Fast forward travelling

May Lunchtime 2018 Division 1

Count Substrings, Maximum Plus

April Challenge 2018 Division 1

Chef and Array (Challenge), Cutting Plants, Weight of Numbers, Highway Crossing, Count Good Prefixes, Average of Pairs, Workers

May Challenge 2018 Division 1

Mighty Friend, Minimum Deletions, Xor Again, Fake Binary Search, Dibs on Fibs

June Challenge 2018 Division 1

Naive Chef

July Challenge 2018 Division 1

No Minimum No Maximum, Magic Set, Strike or Spare

August Challenge 2018 Division 1

Coordinate Compression , Modular GCD, Problem Sort, Sheokand and Number, Spell Bob

September Challenge 2018 Division 1

Sasha and Photos, Magician versus Chef, War of XORs, Chef and Condition Zero (Challenge), Chef and Adventures, Table Game, Bad Shuffle

December Challenge 2018 Division 1

(Challenge) Delete DAG, Max and Electrical Panel, Directing Edges, Chef and Interactive XOR, Chef and Interactive Contests, Chef and An Ideal Problem

November Challenge 2018 Division 1

Chef and Recipes, Chef and Ridges, Appy Loves One, Good Median, Chef, Primes and Trees (Challenge), Magician versus Chef 2, Binary Strings, Chef and Difficult Contests, Chef and Happiness

October Challenge 2018 Division 1

Appy and Balloons , Beautiful Bricks, Minimize Digitsum, Chef and Surprise Chessboard, Coprime Components

June Lunchtime 2018 Division 1

Summary Power, Counting Pretty Numbers

November Lunchtime 2018 Division 1

Useful Number, Beats and Pieces

ALKHWARIZM (Rated)

Help Voldemort, Sam, The Charming Angel

Insomnia 2018 (Rated)

Split Sums, Strange Swaps

Code Melange (Rated)

XD Subsequences, The Deadly Sin, Candy Love

LoC April 2018 (Rated for Division 2)

Perfect Necklace, Cricket Score, Bob and Pallindromes

December Lunchtime 2018 Division 1

Choosing from Buckets, Age Calculator

January Challenge 2019 Division 1

Yet Another Problem About Sequences, Different Neighbours, Partition the Graph, Distinct Pairs, Fancy Quotes, A Pizza Slice

January Cook-Off 2019 Division 1

Ada School, Ada Matrix

January Lunchtime 2019 Division 1

Distances, Wanderer, Rooks, The Nights Watch

February Challenge 2019 Division 1

Manhattan Rectangle, Guess It Right, Chef and Magical Jars, Chef and Secret Ingredients, Xor Decomposition, Appy and Contest, Yet Another Tree Problem, (Challenge) Chef with Orchestra in the Kitchen, Art of Balance, Deputy Chef, Maximize the Tax

February Lunchtime 2019 Division 1

The Tricky Deal

March Challenge 2019 Division 1

Chef got Recipes

March Lunchtime 2019 Division 1

Testing Robot, Pogo Stick Competition

April Challenge 2019 Division 1

Offer for Chef, Mininum XOR over Tree, Playing with Numbers, Maximum Remaining, Subtree Removal

April Cook-Off 2019 Division 1

Doubly Increasing Path, Random Game, Pied Piper vs Hooli, Making a Meal, Mystery Tree, Chef Learning Hungarian Algorithm

April Lunchtime 2019 Division 1

Dream Problem, Attendance, Fast Food, Firdavs and Planet F, Minimum Sum

May Challenge 2019 Division 1

Ada Rooks 2, Trees and Degrees, Reduce to One, Where to Build the Roads, Ada Pawns

May Cook-Off 2019 Division 1

Misha and Nice Sets, Bitsetbaba and Power Grid, Expected Xor, Searching for a Biclique

May Lunchtime 2019 Division 1 (Unrated)

Grid Tour, Intervals and Intersections, Abdullah and Toll Discounts

June Challenge 2019 Division 1

Road Signs, Chef and Proxy, Lent Money, Count Arrays, Chef and Ingredients, Chef and His Dish, Intersecting Paths, Sum and GCD, Forgotten Tree 9, (Challenge) SnackDown 99

June Cook-Off 2019 Division 1

Ants and Anteaters, Drink Slush

June Lunchtime 2019 Division 1

The Grux Permutation , Igzi and Burly Array

July Challenge 2019 Division 1

Hit the Coconuts, Snake and Apple Tree, Guess the Prime!, Parity Again, Codechef War, LOVEMUFFIN, Circular Merging, Chef and Mean

July Cook-Off 2019 Division 1

Birthday Gift Again, War in Treeland Again, Expected Product

July Lunchtime 2019 Division 1 (Unrated)

Delete a Subarray, Professor on a Trip, Two-lane Road

August Cook-Off 2019 Division 1

Rich Substrings, Two Circles

August Lunchtime 2019 Division 1

Destroy Cells, Chef Does Coke Yet Again

September Challenge 2019 Division 1

Chef and Good Subsequences, Easy Fibonacci, Biladerim Icin, Fuzzy Linear Combinations, Expected GCD, Doofish Set, Dodgers, Power Sum, Chef Designed a Network, Chef and Interesting Subsequences , (Challenge) Sebi and CPU Design

September Mega Cook-Off 2019 Division 1

Angry Grandfather, Fitness Exercises

September Lunchtime 2019 Division 1

All Substrings, Ice Cream Queue, Treeversion, Find the Sum

October Challenge 2019 Division 1

Queries on Matrix, Even Edges, Missing Number, Bacterial Reproduction, Chef and Maximum Star Value, Fun with Lists, Array Modification, (Challenge) Maximizing LIS, Operations on a Matrix, Phone Prices

October Lunchtime 2019 Division 1 (Unrated)

Counting Inversions Again!, Box Game, Kth Numbers

November Cook-Off 2019 Division 1

The Biggest Restaurant, The Challenge Day, Robots in Chefland

November Lunchtime 2019 Division 1

Planting Trees, Washing Windows, Perfection

December Cook-Off 2019 Division 1

Xor It, Crash It

International Coding League 2019 (Rated for Division 2)

FlatLand, Too Many Candies, A Weird Device, Earning A Profit

Alkhwarizm (Rated for all)

Weirwood Trees, Danny Wants To Know

Code Melange (Rated for all)

Greg and Grid, A Small Array, Go Round, Some Impact, Longest Xommon Subsequence, Subset Numbering, Max power

January Challenge 2020 Division 1

Chef and Dynamo, Doraemon, Chefina and Prefix Suffix Sums, English, Chefland Army

March Challenge 2020 Division 1

Winning Ways 2

January Cook-Off 2020 Division 1

Profitable Paths, Range AND, Chefina and Sums

March Cook-Off 2020 Division 1

Mysterious Sequence, Find Your Gift, A Tree to Remember, Box of Chocolates, Maximize Letter Beauty, Random Chocolates, Escape the Tree

Exun Programming Prelims 2019 (Rated for all)

Weird Modulo Problem , Tennis Tournament, Chipped Tree, Anay and Polynomial, Yet Another Partition Problem

ENIGMA - PLINTH'20 LNMIIT (Rated for all)

Corruption in Freedonia, Gru is Handing Out Bananas, Minion AND Range, Is it Sorted or Not, That is the Question, Recruit Villagers

UWCOI 2020 (Rated for all)

Button Pairs, Base Plans, Find maximum in an Array, Blocks, Mercury Poisoning, Escape, Optimal Memory Address

RECode 12.0 (Rated for all)

Chef and String, Chef and Walk, Chef and Rotation, Chef and Or, Chef and Subsequences, Chef and Numbers

January Cook-Off 2021 Division 1

Mex Subsequence, Prefix And, Common Ancestors

Code Ensemble (Rated for Division 2)

Cherry and Bits, Cherry and Squares, Cherry and Pyramid, Priya and AND, Traversing Trees, Help Martha, Priya and Parity

UWCOI 2021 (Rated for all)

Organisation, Array Swaps, Efficient Delivery, Hidden Numbers, Binary Puzzle

February Lunchtime 2021 Division 1

Average Sorting, Sed Max, Smallest Possible Whole Number, Independent Set

CodeChef Div 3 Rated Contest 2021 Division 1 (Unrated)

Maximum Size Hollow Square, Rectangle, Chef and Patients, Total Overlap, Body Mass Index, Total Score

April Lunchtime 2021 Division 1

A Special Tree, Magical Coins

May Cook-Off 2021 Division 1

Falling Zero, Double Burgers

June Cook-Off 2021 Division 1

Binary String on Steroids, Battle Royale

July Lunchtime 2021 Division 1

Xor Separation, Longest Good Segment

August Lunchtime 2021 Division 1

Bunny Hops, Just a Graph, Chef and Deque

AlgoManiac - Code For Future Division 1 (Unrated)

Overpowered Divisors, Planetary Path, Deja Vu, Two Shades Of A Tree, Say No To Drugs, The Rumbling, The Old Saint And Three Questions, Meet In The Median

September Cook-Off 2021 Division 1

Chess Kings Chasing Game, Chef and Pairwise Distances, Half Sequence, Fake Swaps

SnackDown 2021 - Online Qualifiers

Lucky Number

October Challenge 2021 Division 1 (Unrated)

Characteristic Polynomial Verification

October Cook-Off 2021 Division 1

Can You Reach The End, Find the Modulus

October Lunchtime 2021 Division 1

Median Rearrangement, Tree Upshot, Maximum GCD

SnackDown 2021 - Online Round 1A

Yet Another Flipping Problem, Round Robin Ranks , Dance Moves, Equal Beauty, Lazy Machine, Min Max LCM

SnackDown 2021 - Online Pre-Elimination

Non-Decreasing Subsequence of size K, Product Pain, Guests like slippers

SnackDown 2021 - Online Elimination Round (Rated for all)

Random Convex Hull, Graduate Work Matters, Sorting Segments

CodeChef Starters 19 Division 1 (Unrated)

Binary String Randomizer, Chef and Contest, Sleepy Chef, P Equal To NP, Indivisible Permutation, The Alternating Sum, Distinct Elements, Three Bikes

SnackDown 2021 - Final Round

Ones Guessing, Equal Number of Prefix Maximums, Finally, Non Ad-Hoc Problem, AND of Maximums

CodeChef Starters 21 Division 1 (Unrated)

Magical Subsequence, ChefWM, And Or Union, Mean equals Median

Infinity 2k21 Division 1 (Unrated)

From Your GGANBU

January Long 2022 - I, Division 1 (Unrated)

Sequence Master, Prime in a binary string, Retrieve back the Array, Chef and Riffles

Exun 2021-22 Division 1 (Unrated)

Sarthak and his Magic Grid, Vedant and his Hidden Array, Aujasvit and the Circle Game, Neil and his Binary Tree, Harshikaa and the Rain, Vishesh and his Hate for Even Numbers

January Cook-Off 2022 Division 1

Subsegment Divisibility , Merged LIS, Boring Trip, Prime Graph, Erase All But One

CodeChef Starters 23 Division 1 (Unrated)

Subarray Mex, Maximise the Minimum, Maximising Vacations, Non Zero Subarray Xor

January Lunchtime 2022 Division 1

Circular Permutation Recovery, Permutation XOR Sum

February Long 2022 - I, Division 1 (Unrated)

Random OR, Digit Multiplication By K, Binary Base Basics, Bitwise Blend, Remove Adjacent

February Cook-Off 2022 Division 1

Xor Becoming Uncanny, Perfect Permutation, PerMEXuation , Mango Market, Slingshot

February Lunchtime 2022 Division 1

Permutation Xor, Chef Cooks Permutation, Visit Them All, Magical Modulo, Magnet Sort

CodeChef Starters 33 Division 1 (Unrated)

Max BIT Sum, Stable Mex, Array operations, Broken Life, Make Them Equal

May Long Two 2022 Division 1 (Unrated)

Subarray Weight, Subsequence-Numbers Divisible by 7, Not Tree Again!, Subarrays with length

July Long One 2022 Division 1 (Unrated)

Expected Difference

Starters 61 Division 1 (Unrated)

Palindrome Partition, Minimise LCS, Different Consecutive Characters , Weird Subarrays, Red Blue Flowers, Row Bombing, Subarray Removal, Reach on Time, Odd Sum Pair

Starters 71 Division 1 (Unrated)

Pet Store, Flip the Prefix, Unique Mode, Instagram, Snapchat, Expected Sum, Perfect Trio, Maximizing LCS, Smallest Difference

Starters 75 Division 1 (Rated till 6-Stars)

Sum of range distinct queries, Chefs Favourite Function, Minimum Replacement, Equal Hamming Distance, Prefix Ones

Starters 86 Division 1 (Rated for All)

Minimum Operation, String Game , Largest Y

Starters 91 Division 1 (Rated till 6 Stars)

XOR & Sum, Limited Shopping, Odd GCD Permutation, More Inversions, Chef Odd, Maximum Sum Permutation

Starters 104 Division 1 (Rated till 6 Stars)

Find Diameter, Longest Non Decreasing Subsequence, Lexicographically Largest , Construct An Array, Maximise Sum, Santa and Chocolates, Pizza Cutting, Double Rent, GCD and LCM

SQL Contest (Unrated)

First Problem on SQL, Number of Distinct Institutes, Div 2 Ranklist, Total Time, Maximum Sum Subarray - SQL

Starters 112 Divison 1 (Rated till 6 Stars)

Maximise Sum, Cursed Indices, Food Costs, Fair Share Settlement, 3 Logicians Walk into a Bar, Yet Another Array Game, Subtree Coloring, Permutation Construction, Max Nutrition

Starters 113 Division 1 (Rated)

Count Distinct Arrays, Minimise Maximum Subarray Sum, Make All Equal, Score Sum, Maximum Score

Starters 120 Division 1 (Rated till 6 Stars)

Find Permutation , Minimum Operations, Construct Permutation, Count Subarrays, Count Arrays, Largest K, Valentines Contest, Sub or Swp, Valentine Gifts

Starters 124 Division 1 (Rated till 5-Stars)

Binary Parity, Table Strength, Swap and Unite, Make It One, Summer Time, Cricket Tournament, How many arrays, It is a tree

Starters 125 Division 1 (Rated till 6-Stars)

Bucket Game, Manhattan Xor, Overspeeding, 50-50 Rule, Fake Certificate, Binary Minimal

Starters 126 Division 1 (Rated till 6 Stars)

Tree Distance Set, Freedom, LCD, Triangular Swaps

Starters127 Division 1

Array Operations, Expected Components, Purify It, ABC Conjecture, Anti-Triangle

Starters 130 Division 1 ( Rated till 6-Stars)

Make Equal

Starters 131 Division 1 (Rated till 5 Stars)

Chef needs to return some videotapes, ABC Conjecture 2, Remaining Neighborhoods, K-Closeness, Digit Space, Gotta Catch Em All, Dice Deception, Encrypt Value, T-Perm

Starters 132 Division 1 (Rated till 6 Stars)

ALIEN-OR, Optimal Flip, Random Array, Change Please, ICE CREAM, Goodness Over Good, MEX QUERIES , Prime Query, GAME 11

Starters 134 Division 1 (Rated till 6-Stars)

Count Good RBS, Permutation Cycle Queries, Chef and Bit Tree, Origin, Morning Run, Prison Escape, Money Double, Rock Paper Scissors, 3out1in

Starters 135 Division 1 (Rated till 5-Stars)

Milky-Dark Chocolates, Envious Pile, Graph Cost, Invert And Equalize, Limit of MEX, Change A to B, Football Ties, RCB vs CSK

Starters 136 Division 1 ( Rated till 6-Stars )

Game On Rectangle, Lexicographically Maximal Prefix AND, Sum of Max K Subarray, Minimum Segments, Sum of Modes, Non-Zero XOR, Who Makes P1, Even Sum Subarray, My First Geometry Problem

Starters 141 Division 1 (Rated till 5-Stars)

Possible Contender, Amphibian Escape, Nearly Equal, Color Difference, Lucky Clover, Perfect Prefixes

Starters 142 Division 1 (Rated till 5-Stars)

Sum of Xors, Pairs Sum with Length x, The Cards Machine, Array Removal, Number Hunt

Starters 144 Division 1 (Rated)

Counting Is Fun, Find P, Minimise Inversions, Largest K

Starters 146 Division 1 (Rated till 5 stars)

Back Front, Connect The Chains, Bouncing Ball, Permutation Construction, Binary Strings Yet Again, Knockout tournament, No Winner, Olympics 2024

Starters 154 (Rated till 6 stars)

Count Winning Subarrays, GCD and XOR, Triangle Count (Hard), Triangle Count (Easy)

Problems Authored (6)

Problems Tested (41)

Editorials Contributed (0)

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