Md Mehraj Hossain

• Username: 4★mehrajshakil
• Country:  Bangladesh
• Student/Professional:Student
• Institution:Noakhali Science and Technology University, Bangladesh
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

Last 6 Months 2025 (Jan-Jun)2024 (Jul-Dec)2024 (Jan-Jun)

Rating Graph

No. of Contests Participated: 34

Current Ratings Graph Old Ratings Graph

1872 (-4)RatingProvisional
Rating i Provisional Rating, click to know more

Starters 56 Division 2 (Rated)(2022-09-14 23:00:02)

Global Rank:   531

Cheated in:   

Ratings System Update

(2022-09-14 23:00:02)

This is the difference due to changing the rating system.This graph is not updated after 20th Dec 2022. Know more

How the rating system works?

1872 (+9)RatingProvisional
Rating i Provisional Rating, click to know more

Starters 56 Division 2 (Rated)(2022-12-20 00:00:00)

Global Rank:   531

Cheated in:   

Ratings System Update

(2022-12-20 00:00:00)

This is the difference due to changing the rating system.This graph is not updated after 20th Dec 2022. Know more

How the rating system works?

Learning Paths (0)

None

Practice Paths (0)

None

Contests (34)

August Challenge 2020 Division 2

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

September Challenge 2020 Division 2

Chefina and Swap, A Problem on Sticks, Chef and Trump Cards, Find XOR, Ada Matrix, Coronavirus Spread 2

August Lunchtime 2020 Division 2

Game on a Strip, Mode of Frequencies, Ratings and Rankings

October Challenge 2020 Division 1

Positive AND, Replace for X

November Challenge 2020 Division 1

Restore Sequence, Ada and Dishes

January Challenge 2021 Division 2

Fair Elections

October Cook-Off 2020 Division 1

Path-etic Sums

October Lunchtime 2020 Division 1

Chef Likes Good Sequences, Cute Chef Gift

September Cook-Off 2020 Division 2

Bowling Strategy

September Lunchtime 2020 Division 2

GCD operations, Root the Tree, Watermelon

February Challenge 2021 Division 2

Frog Sort, Team Name, Prime Game, Maximise Function, Highest Divisor

March Cook-Off 2021 Division 2

Consecutive Deletions, Matrix XOR, Guess the Number

February Lunchtime 2021 Division 2

Average Sorting, Palpal Strings, Coprime Range

March Challenge 2021 Division 2

Interesting XOR!, College Life 4, Space Arrays

March Lunchtime 2021 Division 2

Dinner by Candlelight, Racing, Lunchtime

April Cook-Off 2021 Division 2

OR of ANDs, Chocolate Monger

April Lunchtime 2021 Division 2

Chef in Heaven , Bench Press, Array Rotation

May Cook-Off 2021 Division 2

The Last Problem, Chef and Subarrays

May Lunchtime 2021 Division 2

Charges, Tom And Jerry 1, Total Components

June Cook-Off 2021 Division 2

The Wave

June Lunchtime 2021 Division 2

False Number, Unpleasant Ones

July Challenge 2021 Division 2 (Unrated)

XxOoRr, Chef vs Bharat, Optimal Denomination, K Path Query

July Cook-Off 2021 Division 2

XOR-ORED, Mod Equality

July Lunchtime 2021 Division 2

Beautiful Pairs, Array Rotation Returns

August Challenge 2021 Division 2 (Unrated)

Special Triplets, Array Filling

August Lunchtime 2021 Division 2

K-th Maximum, Crossing Blocks, Just a Graph

CodeChef Starters 10 Division 2 (Rated)

Magical Flips, Maximise the Subsequence Sum, Remove One Element

SnackDown 2021 - Online Qualifiers

Lucky Number, Maximum Number Of Distinct Elements

October Challenge 2021 Division 1 (Unrated)

Longest AND Subarray, Digit Removal, MEX-OR

SnackDown 2021 - Online Round 1A

Round Robin Ranks , Dance Moves, Min Max LCM

SnackDown 2021 - Online Round 1B

Queens Placement , Largest Laddu, Help Nishant

March Long One 2022, Division 2 (Unrated)

Akash and Function, Substring of a Substring, Exact Marks, MEX on Trees

CodeChef Starters 29 Division 2 (Rated)

String protocol, Plusle and Minun on Array, Decomposition Reaction

March Cook-Off 2022 Division 1

Alternating Divisibility

CodeChef Starters 32 Division 2 (Rated)

Maximize the Minimum, Finding Shoes, Training Plans, Flip Sorting

April Long One 2022 Division 1 (Unrated)

Dazzling GCD Pair

July Cook-Off 2022 Division 2 (Rated)

Permutation And Median, Xor Permutation

June Cook-Off 2022 Division 1 (Rated)

Simple XOR, Split AND Sum

June Lunchtime 2022 Division 1 (Rated)

XOR Times 2 Is Sum, Minimum Xor On Segment

Starters 53 Division 2 (Rated)

Make A and B equal

Starters 56 Division 2 (Rated)

K-Subarrays, Maximize Colours

Total Problems Solved: 148