Sezan Ahmed

• Username: 2★array_
• Country:  Bangladesh
• Student/Professional:Student
• Institution:Jahangirnagar University Dhaka, Bangladesh
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

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

Rating Graph

No. of Contests Participated: 19

Current Ratings Graph Old Ratings Graph

1422 (-43)RatingProvisional
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July Challenge 2020 Division 2(2020-07-13 15:00:02)

Global Rank:   21004

Cheated in:   

Ratings System Update

(2020-07-13 15:00:02)

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?

1422 (-72)RatingProvisional
Rating i Provisional Rating, click to know more

July Challenge 2020 Division 2(2022-12-20 00:00:00)

Global Rank:   21004

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 (19)

December Challenge 2018 Division 2

Chef and An Ideal Problem, Chef and Interactive Contests

November Challenge 2018 Division 2

Chef and Difficult Contests

April Challenge 2019 Division 2

Friend or Girlfriend, Maximum Remaining

May Challenge 2019 Division 2

Reduce to One

September Challenge 2019 Division 2

Chef and Good Subsequences, Easy Fibonacci, Fuzzy Linear Combinations, Chef Designed a Network, Chef and Interesting Subsequences

October Challenge 2019 Division 2

Chef and Maximum Star Value

December Challenge 2019 Division 2

Plus Multiply, Easy Subsequence Selection, That Is My Score!, Addition

December Lunchtime 2019 Division 2

Guess the number, Check Algorithm, Stupid Machine

January Challenge 2020 Division 2

Breaking Bricks

February Challenge 2020 Division 2

The Theatre Problem, School of Geometry, Hard Cash

March Challenge 2020 Division 2

Pintu and Fruits

May Challenge 2020 Division 2

Triple Sort, Coronavirus Spread, Chef and Bitwise Product, Isolation Centers

June Challenge 2020 Division 2

The Tom and Jerry Game!, Chef and Icecream, Chef and String, Chef and Price Control

July Challenge 2020 Division 2

Chef and Card Game, Chef and Strings

Total Problems Solved: 49