Mohammad Rahatul Islam

• Username: 2★rafi1234
• Country:  Bangladesh
• Student/Professional:Student
• Institution:International Islamic University Chittagong 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: 11

Current Ratings Graph Old Ratings Graph

1412 (+16)RatingProvisional
Rating i Provisional Rating, click to know more

CodeChef Starters 24 Division 3 (Rated)(2022-02-02 23:00:04)

Global Rank:   4425

Cheated in:   

Ratings System Update

(2022-02-02 23:00:04)

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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1412 (-114)RatingProvisional
Rating i Provisional Rating, click to know more

CodeChef Starters 24 Division 3 (Rated)(2022-12-20 00:00:00)

Global Rank:   4425

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 (11)

December Cook-Off 2020 Division 2

Minimum Attendance Requirement

CodeChef Starters 7 Division 3 (Rated)

Chess Format

August Challenge 2021 Division 3 (Rated)

Problem Difficulties

August Cook-Off 2021 Division 3

Different String, Equal Difference, Which Division, Team Formation

SnackDown 2021 - Online Qualifiers

Lucky Number, Maximum Number Of Distinct Elements

CodeChef Starters 12 Division 3 (Rated)

Good Weather, Make it Divisible

CodeChef Starters 14 Division 3 (Rated)

Odd GCD, Diagonal movement, FIXFIX, RCB and Playoffs

October Challenge 2021 Division 3 (Rated)

Longest AND Subarray, Which Mixture, Three Boxes, MEX-OR, Digit Removal

SnackDown 2021 - Online Round 1A

Round Robin Ranks , Dance Moves, Min Max LCM

November Challenge 2021 Division 2 (Unrated)

Weird Palindrome Making, Equal Coins

November Cook-Off 2021 Division 2

Missing Sums

C.O.D.E.R.S Division 3 (Rated)

The One with Russ, The One Where It All Began

CodeChef Starters 24 Division 3 (Rated)

Avoid Contact, Badminton Serves, EVM Hacking

Total Problems Solved: 50