Irmuun

August Challenge 2020 Division 2

Chef Wars - Return of the Jedi, Another Card Game Problem, Chef and Linear Chess

September Challenge 2020 Division 2

A Problem on Sticks, Ada Matrix

July Cook-Off 2020 Division 2

Even-tual Reduction

August Cook-Off 2020 Division 2

Polygon Relationship, Chef and Work

August Lunchtime 2020 Division 2

Mode of Frequencies

January Challenge 2021 Division 2

Fair Elections

December Challenge 2020 Division 2

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

January Cook-Off 2021 Division 2

Prime Tuples, Maximise Islands

January Lunchtime 2021 Division 2 (Unrated)

Binary Subsequence, Even Differences, Even Sum

Coders' Legacy (Rated for all)

Chef vs Doof

Code Ensemble (Rated for Division 2)

Priya and AND, Help Martha

UWCOI 2021 (Rated for all)

Array Swaps, Hidden Numbers

Byterace IIT Patna Division 2 (Rated)

The Begining Era Of Cyberverse, Cybalphabit

February Challenge 2021 Division 2

Frog Sort, Maximise Function

March Challenge 2021 Division 2

Interesting XOR!, Space Arrays

SnackDown 2021 - Online Qualifiers

Lucky Number, Maximum Number Of Distinct Elements

October Challenge 2021 Division 2 (Unrated)

Longest AND Subarray, MEX-OR

Starters 37 Division 2 (Rated)

Dazzling Even-Odd Challenge, Beat the Average, Infernos, Maximum OR Minimum, Too Mean

May Lunchtime 2022 Division 2 (Rated)

Bucket and Water Flow , Maximum Pairwise Modular Sum, Equal After And

July Cook-Off 2022 Division 1 (Rated)

Segmentation Fault

Starters 41 Division 2 (Rated)

Equal Integers, Remove and Add, Is this priority or parity!, Path Parity, Dearrange sorting

June Cook-Off 2022 Division 1 (Rated)

Simple XOR, Split AND Sum

Starters 48 Division 1 (Unrated)

Positive array

September Lunchtime 2022 Division 1 (Rated) (Based on EJOI)

Increasing Addition

Starters 64 Division 1 (Rated till 5-stars)

Luigi and Uniformity, Square Sort, Prime Factor Division, Distinct Neighbours

Starters 65 Division 1 (Rated for 5 & 6 stars)

Nahaane Jaa, Binod, Gormint Aunty, Potato to Gold

Starters 68 Division 1 (Rated till 5-stars)

Boring String, XOR Product, Make Money

Starters 71 Division 2 (Rated)

Pet Store, Flip the Prefix, Expected Sum, Maximizing LCS

Starters 74 Division 1 (Rated till 6-Stars)

Candies, Maximum Xor Sum, Distinct Values, Lcm hates Gcd, Minimal Inversions

Starters 75 Division 1 (Rated till 6-Stars)

Chefs Favourite Function, Minimum Replacement, Equal Hamming Distance, Prefix Ones

February Cook-Off 2023 Division 1 (Rated)

Take Not Less, Alice Potter And Dumbledore Army

Starters 77 Division 1 (Rated till 5 Stars)

Concat Palindrome, K Increment Palindrome, Three Numbers

Starters 78 Division 1 (Rated till 6 stars)

Bitwise Equation, Balanced Suffix

Starters 80 Division 1 (Rated till 5 stars)

Permutation Subsequence, c8kbf and Tree, Prefix Permutation

Starters 81 Division 1 (Unrated)

Distinct Matrix

Starters 82 Division 1 (Rated till 6 stars)

Tree Game, Find eX, Difference Matrix

Starters 85 Division 1 (Rated till 6 stars)

Crazy Bishops on Chessboard, Efficient PAN Linking, TripTastic

Starters 86 Division 1 (Rated for All)

Minimum Operation, String Game , Largest Y

Starters 83 Division 1 (Rated)

Construct String, Order by XOR, Rotate to Minimum

Starters 89 Division 1 (Rated till 5 Stars)

Positive or Negative Subarrays, Subarray Removal, Two Averages, Evil Infection

Starters 90 Division 1 (Rated till 6 Stars)

Crushed Apples and a Balance Scale, Sum of Goodness, Printing Binary Array, Anti Palindrome

Starters 91 Division 1 (Rated till 6 Stars)

XOR & Sum, Odd GCD Permutation, Chef Odd, Maximum Sum Permutation

Starters 93 Division 1 (Rated for All)

Thank U, Next, NASA, Greedy, Bloodline

Starters 94 Division 1 (Rated till 5 Stars)

Possible or Not, Search for 404, Special Operation, The Vowel Matrix, Rank Queries

Starters 95 Division 1 (Rated till 6 Stars)

Boxes, Transfusion Chain

Starters 96 Division 1 (Rated till 5 Stars)

Swap the numbers, Mex Array, Absolute Differences, Bells of Pilgrimage, Weeding, AB Difference

Starters 97 Division 1 (Rated till 6 Stars)

Make It Special, Unreachability Cost, No Palindrome, Triplets Min

Starters 98 Division 1 (Rated till 6 Stars)

3-Blast Palindrome, Happiness , Ball Distribution

Starters 107 Division 1 (Rated till 6 Stars)

Maximal Expression, Adjacent Flips, Odd Matrix, OR Permutation, Recover The Array

Starters 108 Division 1 (Rated till 6 Stars)

Palindromic Prime Numbers, Fair Distribution, Continuous Subarrays, Multiple of 9

Starters 111 Division 1 (Rated till 6 Stars)

LCM Mania, Prefixing, Prime Range Game, Beautiful Strings

Starters 112 Divison 1 (Rated till 6 Stars)

Cursed Indices, 3 Logicians Walk into a Bar, Yet Another Array Game, Subtree Coloring, Permutation Construction

Starters 113 Division 1 (Rated)

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

Starters 115 Division 1 (Rated)

Subtraction Sequence I, Greedy LIS Algorithm, Binary Grid Forces, Make All Zero

Starters 116 Divison 1 (Rated till 6-Stars)

Chef Product, ORST , Permutation Sort, Exact Savings

Starters 117 Division 1 (Rated till 5-Stars)

Equality Etiquette, Spread Spree, Stingy Arrays, Not Prime Permutation

Starters 119 Division 1 (Rated till 6-Stars)

K Odd Sum, Unalike Gcd & Lcm

Starters 120 Division 1 (Rated till 6 Stars)

Find Permutation , Construct Permutation, Count Subarrays, Count Arrays

Starters 122 Division 1 (Rated till 6-Stars)

Arya In Grid, Transformation Cost

Starters 125 Division 1 (Rated till 6-Stars)

Bucket Game, Manhattan Xor, Binary Minimal

Starters127 Division 1

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

Starters 128 Division 1 (Rated till 6-Stars)

Binary Substring, XOR And Multiply

Starters 131 Division 1 (Rated till 5 Stars)

K-Closeness, Digit Space, Encrypt Value, T-Perm

Starters 132 Division 1 (Rated till 6 Stars)

ALIEN-OR, Optimal Flip, Random Array, MEX QUERIES , Prime Query

Starters 133 Division 1 (Rated till 6-Star)

ABC Conjecture 3, Powered Parameters, Too Far For Comfort (Easy Version)

Starters 134 Division 1 (Rated till 6-Stars)

Count Good RBS, Origin, Prison Escape, 3out1in

Starters 138 Division 1 (Rated till 6-Stars)

A power B mod C , TRIPLE PRIMES, K Subarray Products, Prefix Suffix Inequality, Breezy Mode Problem, Distinct Substring

Starters 139 Division 1 (Rated till 5-Stars)

Sort Perm, Sum of N, Destroying Bridges Part 2

Starters 140 Division 1 (Rated till 5-Stars)

Lucky Matrix, Split Permutation, Trick Or Treat, Break The String, Tree Removal

Starters 141 Division 1 (Rated till 5-Stars)

Possible Contender, Amphibian Escape, 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 148 Division 1 (Rated till 6 stars)

Double Trouble, Beautiful Flip, The Undisappearance, ZigZag Tree Sequences (Easy)

Starters 152 (Rated till 6 stars)

Completion (Hard), Maximize Hamming Distance, Completion (Easy), Anti-Palindrome Queries

Starters 154 (Rated till 6 stars)

Min Max Paths, Tree Cut Xor, Count Winning Subarrays, GCD and XOR, Triangle Count (Hard), Triangle Count (Easy), Add 1 or 2 Game, Calorie Limit, Coldplay Tickets

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