M Obaydullah

• Username: 4★aadee
• Country:  Bangladesh
• Student/Professional:Student
• Institution:Bangladesh University of Professionals
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

Last 6 Months 2026 (Jan-Jun)2025 (Jul-Dec)2025 (Jan-Jun)

Rating Graph

No. of Contests Participated: 12

Current Ratings Graph Old Ratings Graph

1842 (+29)RatingProvisional
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March Cook-Off 2021 Division 2(2021-03-22 00:00:02)

Global Rank:   303

Cheated in:   

Ratings System Update

(2021-03-22 00:00:02)

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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1842 (-30)RatingProvisional
Rating i Provisional Rating, click to know more

March Cook-Off 2021 Division 2(2022-12-20 00:00:00)

Global Rank:   303

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 (12)

June Challenge 2019 Division 2

Chef and Proxy, Guddu on a Date, Sum and GCD, Road Signs

June Cook-Off 2019 Division 2

Multiple Choice Exam, Eat Twice, Drink Slush

July Challenge 2019 Division 2

Chef and Mean

July Cook-Off 2019 Division 2

Two Variables, Playing with Strings

August Cook-Off 2019 Division 2

Chef and Pepperoni Pizza, Chef Drinks Coke

August Lunchtime 2019 Division 2

Eidi Gift, Chef and Trip

December Lunchtime 2019 Division 1

The Evil Professor, Guess the number

September Challenge 2020 Division 1

Chefina and Swap, Ada Matrix, Find XOR, Chef and Trump Cards

October Challenge 2020 Division 1

Positive AND, Replace for X

October Cook-Off 2020 Division 1

Path-etic Sums, Yet Another Crossover Episode

March Cook-Off 2021 Division 2

Consecutive Deletions, Matrix XOR, Guess the Number

March Challenge 2021 Division 2

Interesting XOR!, College Life 4, Space Arrays

July Challenge 2021 Division 2 (Unrated)

XxOoRr, Chef vs Bharat, Optimal Denomination

Total Problems Solved: 40