Tahsin Rahman

• Username: 3★tahsynx
• 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 2026 (Jan-Jun)2025 (Jul-Dec)2025 (Jan-Jun)

Rating Graph

No. of Contests Participated: 19

Current Ratings Graph Old Ratings Graph

1741 (+58)RatingProvisional
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August Cook-Off 2017(2017-08-21 00:00:00)

Global Rank:   453

Cheated in:   

Ratings System Update

(2017-08-21 00:00:00)

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1741 (-36)RatingProvisional
Rating i Provisional Rating, click to know more

August Cook-Off 2017(2022-12-20 00:00:00)

Global Rank:   453

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)

July Cook-Off 2014

Sum Queries, Copy-Paste

July Challenge 2014

Count Substrings

September Lunchtime 2014

Chef and easy problem

March Challenge 2015

Chef and Notebooks, Sign Wave

August Challenge 2015

Way Out, Gravity Guy, Devu And Churu , Cooking Machine, Aditi and Magic Trick

October Challenge 2015

Time measure, Rupsa and Equilateral Triangle, Spheres, Who dares to be a millionaire, Count Subarrays

September Mega Cook-Off 2015

Forgotten Language, Stacks

September Lunchtime 2015

Sum of palindromic numbers

May Challenge 2016

Laddu, Forest Gathering, Chef and Balls, Chef and Big Soccer

September Challenge 2016

Dividing Machine, JosephLand

March Cook-Off 2016

Digital clock, Dual Nim, Alternating subarray prefix

June Lunchtime 2016

Collisions

September Lunchtime 2016

Chef and Inequality

February Challenge 2017

Primitive Queries

April Challenge 2017

Chef and Digits

May Challenge 2017

Chef and Sub Array , Gotham PD, Chef and his daily routine, Courses in an university, Blocked websites, Median of adjacent maximum numbers, Chef and Subsequences

August Cook-Off 2017

Real obtuse, From heaven to earth

Total Problems Solved: 97