Sayan Maiti

October Challenge 2019 Division 2

Array Modification, Phone Prices

November Challenge 2019 Division 2

Hard Sequence, Weapon Value

January Challenge 2020 Division 2

Chef and Dynamo, Doraemon, Equality, Breaking Bricks

February Challenge 2020 Division 2

Chef and Railway Stations, No Change Required, The Theatre Problem, School of Geometry, Hard Cash, Long Contest and Cook Off Overlaps

March Challenge 2020 Division 2

XOR Engine, Ada Bishop 2, Pintu and Fruits

May Challenge 2020 Division 1

Coronavirus Spread, Isolation Centers

July Challenge 2020 Division 1

Chefina and Swaps, Missing a Point, Doctor Chef

September Challenge 2020 Division 1

A Problem on Sticks, Coronavirus Spread 2

April Challenge 2021 Division 2

Binary String MEX, Worthy Matrix, Chef and Dice

SPYBITS IIT BHU Division 2 (Rated)

B - Valentine Couples, C - Mission Gotham, D - Pilgrims Destination, A - Save Water Save Life

May Cook-Off 2021 Division 2

The Last Problem, Chef and Subarrays

September Cook-Off 2021 Division 2

Chef and Pairwise Distances, Zebra Crossing, Fake Swaps, Adjacency Hatred

October Cook-Off 2021 Division 2

Can You Reach The End, Odd Sum, 01 Subsequence

October Lunchtime 2021 Division 2

Chef and Water Car, Exactly N plus 1 Values

November Cook-Off 2021 Division 2

Product Pain, Missing Sums, Make it Divisible

CodeChef Starters 17 Division 2 (Rated)

Binary Inversion, GCD of Prefixes, String Game, New Piece

CodeChef Starters 19 Division 2 (Rated)

P Equal To NP, Indivisible Permutation, The Alternating Sum, Distinct Elements

C.O.D.E.R.S Division 2 (Rated)

The One On The Last Night, The One with All the Candy, The One with Ross Wedding

FizzBuzz Division 2 (Rated)

Magical Planks, Clean The Sequence, Substring Minimum Function, Can_Reach, Kingdom Attack

November Lunchtime 2021 Division 2

Expected Weight, Strange Minimization, Rapid Re-Orderings

December Challenge 2021 Division 2 (Unrated)

Squares Counting

SnackDown 2021 - Elimination Parallel (Rated for Div 2)

Yet another subarray problem, Remove Element, Maximum Palindrome

December Lunchtime 2021 Division 2

Maximum Trio, Romantic Reversals

Infinity 2k21 Division 2 (Rated)

Marbles, Dalgona Treat

July Cook-Off 2022 Division 2 (Rated)

Permutation And Median, Xor Permutation, Segmentation Fault

June Cook-Off 2022 Division 2 (Rated)

Simple XOR, Break the Stick

Starters 46 Division 2 (Rated)

Prime Xor, Vowel Anxiety, Array sorting, Sort the String

Starters 47 Division 2 (Rated)

Copy and Push Back, Similar Heights, End Sorted

July Lunchtime 2022 Division 2 (Rated)

Easy Pronunciation, Yet Another Palindrome Making Problem, Consecutive XOR, Maximum Median Matching, Largest Family

Starters 48 Division 2 (Rated)

Strict Permutation, Fill The Grid, Make Palindrome 2, Positive array, Accurate XOR

Starters 57 Division 2 (Unrated)

Delicious Queries, Maximum Expression, Even Splits, Two Different Palindromes

Starters 61 Division 2 (Rated)

Minimise LCS, Weird Subarrays, Red Blue Flowers, Subarray Removal

Starters 63 Division 2 (Rated)

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

Starters 71 Division 1 (Unrated)

Flip the Prefix, Maximizing LCS

Starters 72 Division 1 (Rated till 5-Stars)

N Triplets, Good Sequence, No sequence

Starters 73 Division 1 (Rated till 6-Stars)

Find an integer, Consecutive Xor

Starters 74 Division 1 (Rated till 6-Stars)

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

Starters 75 Division 1 (Rated till 6-Stars)

Chefs Favourite Function, Equal Hamming Distance, Prefix Ones

February Cook-Off 2023 Division 2 (Rated)

Take Not Less, Permutation and Modulus, Minimum Beauty

Starters 77 Division 2 (Rated)

Concat Palindrome, Three Numbers

Starters 78 Division 2 (Rated)

Bitwise Equation, Balanced Suffix, Valid Expression, Solve More Problems!

Starters 79 Division 2 (Rated)

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

Starters 80 Division 2 (Rated)

Permutation Subsequence, c8kbf and Tree, Prefix Permutation, Equal Elements

Starters 81 Division 2 (Unrated)

Distinct Matrix, Divide Pages

Starters 82 Division 2 (Rated)

Make Them Alike, Find eX, Make A-B Same, Difference Matrix, MIN To MAX

Starters 84 Division 1 (Rated till 6 Stars)

SUM OR, Max count of 1, Digit Operation, Chef And Adjacent Sums

Starters 85 Division 1 (Rated till 6 stars)

Crazy Bishops on Chessboard, Efficient PAN Linking, TripTastic

Starters 86 Division 2 (Rated)

Minimum Operation, String Game , Largest Y, Maximise Score

Starters 87 Division 1 (Rated till 6 Stars)

Inversions of subsequences, AB plus C

Starters 83 Division 1 (Rated)

Construct String, Order by XOR

Starters 88 Division 2 (Rated)

Maximum And Or, Unstable Subarray, Chef and Good Array

Starters 91 Division 2 (Rated)

XOR & Sum, Odd GCD Permutation, Chef Odd, Blobby Volley Scores, Maximum Sum Permutation

Starters 92 Division 1 (Rated till 6 Stars)

Rectangular Tiling, Dividing into Groups, Beautification of array, Distance Coloring

Starters 93 Division 1 (Rated for All)

NASA, 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)

Boxes, Transfusion Chain

Starters 96 Division 2 (Rated)

Swap the numbers, Mex Array, Remove Multiples

Starters 97 Division 1 (Rated till 6 Stars)

Make It Special, No Palindrome, Triplets Min

Starters 98 Division 1 (Rated till 6 Stars)

3-Blast Palindrome, Ball Distribution

Starters 99 Division 1 (Rated till 6 Stars)

Segment Three, Two Piles, Exclusion-Inclusion

Starters 100 Division 1 (Rated)

Stamps 100

Starters 103 Division 1 (Rated till 6 Stars)

Squarified, Chandelier, Unique xor, Divisible By 8

Starters 108 Division 1 (Rated till 6 Stars)

Palindromic Prime Numbers, Fair Distribution, Multiple of 9

Starters 116 Divison 1 (Rated till 6-Stars)

Exact Savings

Starters 128 Division 2 (Rated)

XOR And Multiply

Starters 134 Division 2 (Rated)

Origin, Prison Escape, Rock Paper Scissors, 3out1in

Starters 135 Division 2 (Rated)

Graph Cost, Invert And Equalize, Change A to B

Starters 136 Division 2 ( Rated )

Lexicographically Maximal Prefix AND, Sum of Modes, My First Geometry Problem

Starters 137 Division 1 (Rated till 5-Stars)

Speedrun, Double Trouble

Starters 138 Division 1 (Rated till 6-Stars)

A power B mod C , TRIPLE PRIMES, Prefix Suffix Inequality, Distinct Substring

Starters 140 Division 2 (Rated)

Make Permutation, Split Permutation, Trick Or Treat, Break The String, Tree Removal

Starters 141 Division 1 (Rated till 5-Stars)

Perfect Prefixes

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