Sayem Ahmed

• Username: 2★sa_y_em
• Country:  Bangladesh
• Student/Professional:Student
• Institution:United International University, Dhaka Bangladesh
• 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: 18

Current Ratings Graph Old Ratings Graph

1511 (+57)RatingProvisional
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November Cook-Off 2021 Division 3(2021-11-22 00:00:04)

Global Rank:   208

Cheated in:   

Ratings System Update

(2021-11-22 00:00:04)

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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1511 (-158)RatingProvisional
Rating i Provisional Rating, click to know more

November Cook-Off 2021 Division 3(2022-12-20 00:00:00)

Global Rank:   208

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 (18)

July Challenge 2020 Division 2

Chef and Strings, Chef and Card Game

August Challenge 2020 Division 2

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

December Challenge 2020 Division 2

Positive Prefixes, Even Pair Sum, Vaccine Production, Vaccine Distribution

December Cook-Off 2020 Division 2

Minimum Attendance Requirement

December Lunchtime 2020 Division 2 (Unrated)

Sed Sequences, One Zero Swaps

October Lunchtime 2020 Division 2

AND Plus OR

Byterace IIT Patna Division 2 (Rated)

The Begining Era Of Cyberverse

January Challenge 2021 Division 3

Fair Elections, Chef and Division 3, Point Of Impact, Encoded String

February Lunchtime 2021 Division 3

Daanish and Problems, Coprime Range, Smallest Possible Whole Number, Palpal Strings

March Challenge 2021 Division 2

Interesting XOR!, Space Arrays

April Challenge 2021 Division 2

Chef and Dice

International Coding Marathon 2021 Division 2 (Rated)

Suffix Sort, Lucky Boundaries

May Challenge 2021 Division 2 (Rated)

Xor Equality

June Lunchtime 2021 Division 3

False Number, HTML Tags, Richie Rich, Unpleasant Ones

November Cook-Off 2021 Division 3

Disabled King, Odds and Evens, Missing Sums, Make it Divisible

Total Problems Solved: 62