Md. Mahamudur Rahaman Sajib

December Challenge 2016

Our Base is Under Attack

February Challenge 2018

Chef And His Characters, Chef And The Patents, Points Inside A Polygon, Car-pal Tunnel, Permutation and Palindrome

March Challenge 2018 DIV 2

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

July Cook-Off 2018 Division 1

OR Matrix

April Challenge 2018 Division 1

Chef and Array (Challenge), Vaibhav and Ministers, Highway Crossing, Chef and Same Old Recurrence, Count Good Prefixes

July Challenge 2018 Division 1

Pizza Delivery, Reach Equilibrium, No Minimum No Maximum, Gears

August Challenge 2018 Division 1

Modular GCD, Lonely Cycles

December Challenge 2018 Division 1

Colorblind Feast

November Challenge 2018 Division 1

Appy Loves One, Good Median

Insomnia 2018 (Rated)

Split Sums, Strange Swaps

March Challenge 2019 Division 2

Chef and Soccer, Chef got Recipes, Cheating on Queue, Chef and Number Game, Yet Again a Subarray Problem, Chef and a Beautiful Digit

April Challenge 2019 Division 1

Offer for Chef, Kira Loves Palindromes, Mininum XOR over Tree, Playing with Numbers, Subtree Removal

April Cook-Off 2019 Division 1

Doubly Increasing Path, Pied Piper vs Hooli

August Challenge 2019 Division 1

Guddu and his Mother, Encoding, Dilemma

September Challenge 2019 Division 1

Biladerim Icin, Fuzzy Linear Combinations, Expected GCD, Doofish Set, Power Sum, Chef Designed a Network

October Challenge 2019 Division 1

Bacterial Reproduction

January Challenge 2020 Division 1

Chef and Dynamo

February Challenge 2020 Division 1

Chef and Railway Stations, Expected Change, No Change Required, Chef and Gordon Ramsay 2, Long Contest and Cook Off Overlaps

April Challenge 2020 Division 1

Strange Number, Squared Subsequences, Perfect Power Divisors, Ready Bitwise, Factor Tree

March Cook-Off 2020 Division 1

Mysterious Sequence, Maximize Letter Beauty, Random Chocolates, Escape the Tree

March Lunchtime 2020 Division 1 (Unrated)

Maximize LCM, Strip in a Tree!

June Challenge 2020 Division 1

The Tom and Jerry Game!, Operations on a Tuple, The Delicious Cake, Convenient Airports, Danya and Different Values

July Cook-Off 2020 Division 1

What Is This, a Crossover Episode, The In-XOR-able Task, Even-tual Reduction, OR-thodox Distinction, Path-etic Products

July Lunchtime 2020 Division 1

Binary Concatenation

February Challenge 2021 Division 1

Team Name, Another Tree with Number Theory, Prime Game, XOR Sums

March Challenge 2021 Division 1

Dense Graph, Consecutive Adding, Paparazzi Gennady, Substring Probability, Space Arrays, Locked Safe, Random Walk Queries, Maximum Topological Sort

April Cook-Off 2021 Division 1

Tree Distances, OR of ANDs, Valet Parking

March Lunchtime 2022 Division 1

Winter, Adjacency Love, Separate Them All

July Lunchtime 2022 Division 1 (Rated)

Binary String Happiness, Largest Family

Starters 50 Division 1 (Unrated)

Air Blimp, Sum Product Segments, Average Permutation

Starters 53 Division 1 (Unrated)

Black&White Ring Game, Make It One, Make A and B equal, Queen Blocks

September Long 2022 Division 1 (Unrated)

Alone Alice!

Starters 122 Division 1 (Rated till 6-Stars)

Arya In Grid, Transformation Cost

Starters 125 Division 1 (Rated till 6-Stars)

Binary Minimal

Starters 126 Division 1 (Rated till 6 Stars)

Freedom, LCD, Triangular Swaps

Starters127 Division 1

Anti-Triangle

Problems Authored (4)

Problems Tested (0)

No Contribution

Editorials Contributed (1)