Nahidul Islam Sayel

• Username: 2★nahidul_islam
• Country:  Bangladesh
• Student/Professional:Student
• Institution:Sylhet International University
• 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: 15

Current Ratings Graph Old Ratings Graph

1443 (-14)RatingProvisional
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August Challenge 2021 Division 3 (Rated)(2021-08-16 18:00:00)

Global Rank:   11940

Cheated in:   

Ratings System Update

(2021-08-16 18:00:00)

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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1443 (-19)RatingProvisional
Rating i Provisional Rating, click to know more

August Challenge 2021 Division 3 (Rated)(2022-12-20 00:00:00)

Global Rank:   11940

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 (15)

May Challenge 2020 Division 2

Isolation Centers, Coronavirus Spread

June Challenge 2020 Division 2

Even Matrix, 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

August Challenge 2020 Division 2

Chef Wars - Return of the Jedi, Another Card Game Problem, Chef and Linear Chess, Smallest KMP, Chef and Wedding Arrangements

September Challenge 2020 Division 2

A Problem on Sticks, Ada Matrix

October Challenge 2020 Division 2

Chef and Easy Queries, Positive AND, Covid Run

November Challenge 2020 Division 2

Restore Sequence, Ada and Dishes

December Challenge 2020 Division 2

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

CodeChef Div 3 Rated Contest 2021 Division 3

Body Mass Index, Total Score

February CodeChef Starters 2021 Division 3 (Rated)

Chef and Coupon

March Challenge 2021 Division 3

Chef and Groups, Space Arrays, No Time to Wait

June Challenge 2021 Division 3 (Rated)

Bella ciao, Summer Heat

July Lunchtime 2021 Division 3

Chef and Spells, Red Alert

August Challenge 2021 Division 3 (Rated)

Problem Difficulties, Olympics Ranking

Total Problems Solved: 39