Prosonul Haque

• Username: 2★rafa45
• Country:  Bangladesh
• Student/Professional:Professional
• Organisation:
• 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: 10

Current Ratings Graph Old Ratings Graph

1549 (+26)RatingProvisional
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February Lunchtime 2022 Division 2(2022-03-01 23:00:02)

Global Rank:   1789

Cheated in:   

Ratings System Update

(2022-03-01 23:00:02)

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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1549 (-169)RatingProvisional
Rating i Provisional Rating, click to know more

February Lunchtime 2022 Division 2(2022-12-20 00:00:00)

Global Rank:   1789

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 (10)

September Challenge 2020 Division 2

Ada Matrix, A Problem on Sticks

October Challenge 2020 Division 2

Covid Run, Chef and Easy Queries

September Cook-Off 2020 Division 2

Bowling Strategy

September Lunchtime 2020 Division 2

GCD operations, Watermelon

July Cook-Off 2021 Division 2

XOR-ORED, Mod Equality

July Lunchtime 2021 Division 2

Beautiful Pairs

CodeChef Starters 6 Division 3 (Rated)

Joker and Batman, Three Dices, Cricket Ranking

CodeChef Starters 7 Division 3 (Rated)

Chess Format, Food Chain, Maximum Array Xor

August Challenge 2021 Division 2 (Unrated)

Chef and Bulb Invention, Problem Difficulties, Olympics Ranking

August Cook-Off 2021 Division 2

Different String, Equal Difference

SnackDown 2021 - Online Qualifiers

Lucky Number, Maximum Number Of Distinct Elements

SnackDown 2021 - Online Round 1A

Dance Moves, Min Max LCM

February Lunchtime 2022 Division 2

Four Equidistant Points on a Grid, Parallel Processing, Magnet Sort

Total Problems Solved: 42