Mosabbir Hossain Khan

• Username: 4★robinhood3082
• Country:  Bangladesh
• Student/Professional:Student
• Institution:Chittagong University of Engineering & Technology, 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: 13

Current Ratings Graph Old Ratings Graph

1971 (-69)RatingProvisional
Rating i Provisional Rating, click to know more

July Lunchtime 2022 Division 1 (Rated)(2022-07-17 23:30:00)

Global Rank:   273

Cheated in:   

Ratings System Update

(2022-07-17 23:30:00)

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

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1971 (-69)RatingProvisional
Rating i Provisional Rating, click to know more

July Lunchtime 2022 Division 1 (Rated)(2022-12-20 00:00:00)

Global Rank:   273

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)

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Practice Paths (0)

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Contests (13)

April Challenge 2019 Division 2

Maximum Remaining, Fencing, Friend or Girlfriend

July Challenge 2020 Division 2

Ada King, Chefina and Swaps, Missing a Point, Chef and Card Game, Chef and Strings

November Cook-Off 2020 Division 2

Flip the String, Chef and IPC Certificates, Hiring Workers

March Challenge 2021 Division 2

Space Arrays, College Life 4, Interesting XOR!

May Challenge 2021 Division 2 (Rated)

Xor Equality, Tic Tac Toe

July Cook-Off 2021 Division 2

Beautiful Subsequence, XOR-ORED, Mod Equality

January Long 2022 - II, Division 2 (Unrated)

Crying Colours

CodeChef Starters 23 Division 2 (Unrated)

Average of Three, Subarray Mex, Maximising Vacations, Non Zero Subarray Xor

January Lunchtime 2022 Division 2

Subarray permutations, Permutation XOR Sum, Prefix Zeros

CodeChef Starters 25 Division 2 (Rated)

Building Towers, Equal MEX, K Distinct Array, Points and Lines

February Cook-Off 2022 Division 2

Perfect Permutation, PerMEXuation , Mango Market, Prefix Permutation

February Long 2022 - II, Division 2 (Unrated)

Bitwise swaps

CodeChef Starters 26 Division 2 (Unrated)

Control the Pollution, Careless Chef

April Lunchtime 2022 Division 1(Rated)

Secret Machine Mania

May Long One 2022 Division 2 (Unrated)

Mystical Numbers, The Attack of Queen

July Cook-Off 2022 Division 1 (Rated)

Segmentation Fault

June Lunchtime 2022 Division 2 (Rated)

Zero Ones Equal One Zeros, The Lost Array, Max Shift After XOR, XOR Times 2 Is Sum, XOR, The Detective, Equal by XORing

July Lunchtime 2022 Division 1 (Rated)

Largest Family

Total Problems Solved: 119