Ayon Raihan

• Username: 2★filthynoya
• Country:  Bangladesh
• Student/Professional:Student
• Institution:Ahsanullah University of Science and Technology Dhaka, 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: 15

Current Ratings Graph Old Ratings Graph

1574 (+22)RatingProvisional
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September Challenge 2021 Division 3 (Rated)(2021-09-13 15:00:00)

Global Rank:   1982

Cheated in:   

Ratings System Update

(2021-09-13 15:00:00)

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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1574 (-34)RatingProvisional
Rating i Provisional Rating, click to know more

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

Global Rank:   1982

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)

December Challenge 2020 Division 2

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

December Cook-Off 2020 Division 2

Catch the Thief, Minimum Attendance Requirement

December Lunchtime 2020 Division 2 (Unrated)

Sed Sequences

November Lunchtime 2020 Division 2

Gasoline Introduction

Byterace IIT Patna Division 2 (Rated)

The Begining Era Of Cyberverse

January Challenge 2021 Division 3

Fair Elections, Chef and Division 3, Point Of Impact, Encoded String

January Cook-Off 2021 Division 3

Distinct Pair Sums, Password

February Challenge 2021 Division 3

Frog Sort, Highest Divisor, Maximise Function, Chef and Meetings

February Lunchtime 2021 Division 3

Daanish and Problems, Smallest Possible Whole Number, Coprime Range

March Challenge 2021 Division 3

Interesting XOR!, Chef and Groups, Space Arrays, No Time to Wait

April Challenge 2021 Division 3

Strong Language, World Record, Valid Pair

May Challenge 2021 Division 3 (Rated)

Xor Equality, Golf, Solubility

June Challenge 2021 Division 3 (Rated)

Shortest Route, Bitwise Tuples, Bella ciao, Summer Heat

July Challenge 2021 Division 3 (Rated)

XxOoRr, Optimal Denomination, Maximum Production, Relativity

August Challenge 2021 Division 3 (Rated)

Chef and Bulb Invention, Olympics Ranking, Problem Difficulties, Special Triplets

September Challenge 2021 Division 3 (Rated)

XOR Equal, Shuffling Parities, Airline Restrictions, Travel Pass

November Challenge 2021 Division 2 (Unrated)

Weird Palindrome Making, Equal Coins

December Challenge 2021 Division 2 (Unrated)

Valleys and Hills, List of Lists

January Long 2022 - I, Division 2 (Unrated)

Prime in a binary string

May Long One 2022 Division 2 (Unrated)

Pushpa , The Attack of Queen

Total Problems Solved: 68