Rajon Chowdhury

• Username: 3★rajon_68
• 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: 16

Current Ratings Graph Old Ratings Graph

1675 (+18)RatingProvisional
Rating i Provisional Rating, click to know more

December Cook-Off 2020 Division 2(2020-12-22 00:00:02)

Global Rank:   1324

Cheated in:   

Ratings System Update

(2020-12-22 00:00:02)

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?

1675 (-31)RatingProvisional
Rating i Provisional Rating, click to know more

December Cook-Off 2020 Division 2(2022-12-20 00:00:00)

Global Rank:   1324

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 (16)

April Challenge 2019 Division 2

Maximum Remaining, Friend or Girlfriend, Fencing

July Challenge 2019 Division 2

Minimum and Maximum, Chef and Mean

April Challenge 2020 Division 2

Strange Number, Squared Subsequences, Unit GCD, Sell All the Cars, COVID Pandemic and Long Queue

May Challenge 2020 Division 2

Isolation Centers, Coronavirus Spread

April Lunchtime 2020 Division 2

Another Birthday Present!, Chef in Fantasy League

July Challenge 2020 Division 2

Ada King, Missing a Point, Chef and Card Game, Chef and Strings

July Cook-Off 2020 Division 2

Even-tual Reduction

July Lunchtime 2020 Division 2

Chef and Steps, Maximum Candies

August Cook-Off 2020 Division 2

Polygon Relationship, Chef and Work, K-Foldable String

June Lunchtime 2020 Division 2

Chef and Demonetisation, Increasing Decreasing

December Cook-Off 2020 Division 2

Self-Destructing Strings, Catch the Thief, Minimum Attendance Requirement

October Cook-Off 2020 Division 2

Split the Str Ing, Path-etic Sums, Decreasing Srrnmieeda

November Cook-Off 2020 Division 2

Flip the String, Chef and IPC Certificates

November Lunchtime 2020 Division 2

Gasoline Introduction

Coders' Legacy (Rated for all)

Chef vs Doof, Doof on Cartesian

September Cook-Off 2020 Division 2

Bowling Strategy

Total Problems Solved: 76