Shreyan Ray

August Long 2022 Division 3 (Rated)

Sale Season, Hello Equation, Two Trains, Maximum Submissions, Make A and B equal

Starters 52 Division 4 (Rated)

AI Analysing Code, Minimum Sum, WA Test Cases, Air Conditioner Temperature, K-Flip, Gritty Grid

August Lunchtime 2022 Division 3 (Rated)

Candy Distribution, Equalizing Numbers, Easy Permutation, Array Equality

Starters 53 Division 3 (Rated)

Black&White Ring Game, Car Trip, Greater Average, Odd Pairs, Make A and B equal, Queen Blocks, Weights

Starters 54 Division 3 (Rated)

Equal Distinct, Ticket Fine, Team of Two

Starters 55 Division 2 (Rated)

Balls and Boxes, Mean and Median, OR Tuples

September Long 2022 Division 2 (Unrated)

Speed Limit Test, Bob at the Bank, Chef and Wire Frames, Interesting Subarray, Good Pairs

Starters 56 Division 2 (Rated)

Maximize Colours

September Lunchtime 2022 Division 2 (Rated) (Based on EJOI)

Stick Break, Permutation Creation

Starters 57 Division 2 (Unrated)

Two Different Palindromes

Starters 59 Division 2 (Rated)

Seven-Segment Factoring, Suspense String, Confusing Concatenations

October Long 2022 Division 2 (Unrated)

Binary Substituition, Single Operation Part 1, Single Operation Part 2

Starters 60 Division 2 (Rated)

Distinct Numbers, Red Green Grids, Yet Another Palindrome Problem, Tri XOR, Palindrome Flipping

Starters 62 Division 2 (Rated)

Joint XOR, Sorted Substrings, Make Multiple, Final Sum, Pythagorean Pair

Starters 63 Division 2 (Rated)

Maximize 1s, One-XOR Deletions, Make Length 1, Minimum Absolute Score, Greedy Grid Moves

Starters 65 Division 2 (Rated)

Nahaane Jaa, Parity, Candies, Binod, Gormint Aunty, Hackerman, Potato to Gold

November Long 2022 Division 2 (Unrated)

MaxEdges, Split and Maximize, Spliting Balls, Time Complexity

Starters 66 Division 1 (Rated till 5-stars)

Good Binary Strings, Palindrome by Splitting

Starters 70 Division 1 (Rated till 6-stars)

Minimum distance between 1s, X AND Y Tree, Two Counters, Prime Reversal, Frequency Array Retrieval

February Cook-Off 2023 Division 1 (Rated)

Take Not Less, Alice Potter And Dumbledore Army

Starters 77 Division 1 (Rated till 5 Stars)

Yet Another XOR Sort, K Forests, Concat Palindrome, K Increment Palindrome, Three Numbers

Starters 79 Division 1 (Rated till 5 Stars)

Love Squares Hate Cubes, K-Beautiful Subarrays, Mountain, One Stone or Two Stones

Starters 80 Division 1 (Rated till 5 stars)

Permutation Subsequence, Three-People Contests, c8kbf and Tree, Prefix Permutation, Eat Rock!, Just One More Episode, Single-use Attack, Running Comparison, Equal Elements

Starters 86 Division 1 (Rated for All)

Least Size, Minimum Operation, String Game , Largest Y

Starters 83 Division 1 (Rated)

Construct String, Order by XOR

Starters 91 Division 1 (Rated till 6 Stars)

Odd GCD Permutation, Chef Odd, Maximum Sum Permutation

Starters 92 Division 1 (Rated till 6 Stars)

Rectangular Tiling, Dividing into Groups, A Peculiar Arrangement, Beautification of array, Distance Coloring

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

Starters 95 Division 1 (Rated till 6 Stars)

Partition and Maximize, Boxes, Transfusion Chain, Break This Array

Starters 97 Division 1 (Rated till 6 Stars)

Make It Special, Caesar Cipher, Unreachability Cost, Schrodinger Smiley, No Palindrome, Triplets Min, 2000, Best of Two

Starters 101 Division 1 (Unrated)

Minimize Xor Difference, Partially Increasing Array Queries

Starters 104 Division 1 (Rated till 6 Stars)

Find Diameter, Longest Non Decreasing Subsequence, Lexicographically Largest , Construct An Array, Maximise Sum

Starters 106 Division 1 (Rated till 5 Stars)

Playing with OR, Save People, Guess the winner!, Count Possibilities, Reach Anywhere

Starters 172 (Rated till 5 stars)

Transform String, AndOr, Forgotten Permutation, Binary Trisection, Tactical Removal

Starters 173 (Rated upto < 2700)

Cool Subsequences, Postman and LLM, Introverts, Cool Checker, Time Penalty, Overwrite

Problems Authored (1)

Problems Tested (45)

Editorials Contributed (9)