Sabbir Ahmed

• Username: 1★sabbir
• Country:  Netherlands
• Student/Professional:Professional
• Organisation:booking.com
• 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: 3

Current Ratings Graph Old Ratings Graph

1379? (+86)RatingProvisional
Rating i Provisional Rating, click to know more

November Challenge 2016(2016-11-14 15:00:00)

Global Rank:   2149

Cheated in:   

Ratings System Update

(2016-11-14 15:00:00)

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?

1379? (-170)RatingProvisional
Rating i Provisional Rating, click to know more

November Challenge 2016(2022-12-20 00:00:00)

Global Rank:   2149

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 (3)

October Challenge 2012

Fierce Battles

November Challenge 2012

Coin Flip

November Challenge 2016

Count Permutations, Task for Alexey

Total Problems Solved: 4