Muhammad Najmul Hasan Nayeem

December Cook-Off 2019 Division 2

Change It

February Challenge 2020 Division 2

No Change Required, The Theatre Problem, School of Geometry, Hard Cash

March Challenge 2020 Division 2

XOR Engine, Pintu and Fruits

July Cook-Off 2020 Division 2

Even-tual Reduction

August Cook-Off 2020 Division 2

Polygon Relationship, Chef and Work, K-Foldable String

August Lunchtime 2020 Division 2

Game on a Strip, Mode of Frequencies

November Cook-Off 2020 Division 2

Flip the String, Chef and IPC Certificates

November Lunchtime 2020 Division 2

Gasoline Introduction, Xor Compare, Gasoline

February Lunchtime 2021 Division 2

Average Sorting, Palpal Strings, Coprime Range

April Cook-Off 2021 Division 2

OR of ANDs, Chocolate Monger

July Cook-Off 2021 Division 2

XOR-ORED, Mod Equality

July Lunchtime 2021 Division 2

Beautiful Pairs, Array Rotation Returns

SnackDown 2021 - Online Qualifiers

Lucky Number, Maximum Number Of Distinct Elements

October Challenge 2021 Division 2 (Unrated)

Longest AND Subarray, Digit Removal, MEX-OR

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

SnackDown 2021 - Online Round 1A

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

SnackDown 2021 - Online Pre-Elimination

Product Pain

CodeChef Starters 17 Division 2 (Rated)

Binary Inversion, GCD of Prefixes, Partition It, New Piece

November Lunchtime 2021 Division 2

Strange Minimization, Rapid Re-Orderings

December Challenge 2021 Division 2 (Unrated)

List of Lists

SnackDown 2021 - Elimination Parallel (Rated for Div 2)

Yet another subarray problem, Remove Element, Sorting Segments

December Lunchtime 2021 Division 2

Maximum Trio, Optimal Sorting, Romantic Reversals

February Cook-Off 2022 Division 2

Perfect Permutation, PerMEXuation , Mango Market, Prefix Permutation

February Lunchtime 2022 Division 1

Magical Modulo, Magnet Sort

March Cook-Off 2022 Division 1

Dragonado And XOR, Alternating Divisibility

March Lunchtime 2022 Division 1

Winter, Adjacency Love

May Lunchtime 2022 Division 1 (Rated)

Balanced 0-1 Tree, Equal After And

June Cook-Off 2022 Division 1 (Rated)

Throw and Take, Simple XOR, Split AND Sum

June Lunchtime 2022 Division 1 (Rated)

The Lost Array, Max Shift After XOR, XOR Times 2 Is Sum

Starters 48 Division 1 (Unrated)

Strict Permutation, Positive array, Accurate XOR

Starters 55 Division 1 (Unrated)

Non Zero Xor, Balls and Boxes, OR Tuples

Starters 66 Division 1 (Rated till 5-stars)

Sorting the Binary String, Good Binary Strings, Palindrome by Splitting, Connect All Cities, Palindrome In Making

Starters 102 Division 1 (Rated till 6 Stars)

Parity Permutation, Bit Play

Starters 134 Division 1 (Rated till 6-Stars)

Count Good RBS, Origin, Prison Escape, 3out1in

Starters 136 Division 1 ( Rated till 6-Stars )

Game On Rectangle, Lexicographically Maximal Prefix AND, Sum of Modes

Starters 141 Division 1 (Rated till 5-Stars)

Possible Contender, Amphibian Escape, Perfect Prefixes

Starters 142 Division 1 (Rated till 5-Stars)

Array Removal, Number Hunt

Starters 156 (Rated till 6 stars)

Balance Difficulties, Interval Cliques, Partition Score

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