Attila Pereszlenyi

• Username: 4★peresz
• Country:  Hungary
• Student/Professional:Professional
• Organisation:Avaya
• 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: 9

Current Ratings Graph Old Ratings Graph

1855 (-19)RatingProvisional
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April Challenge 2021 Division 2(2021-04-12 15:00:02)

Global Rank:   1345

Cheated in:   

Ratings System Update

(2021-04-12 15:00:02)

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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1855 (-1)RatingProvisional
Rating i Provisional Rating, click to know more

April Challenge 2021 Division 2(2022-12-20 00:00:00)

Global Rank:   1345

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 (9)

August Challenge 2020 Division 2

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

September Challenge 2020 Division 2

Chefina and Swap, A Problem on Sticks, Chef and Trump Cards, Find XOR, Divide Candies, Ada Matrix, Coronavirus Spread 2

November Challenge 2020 Division 1

Restore Sequence

January Challenge 2021 Division 2

Chef and Ants, Expected Number of SCCs, Watching CPL, Fair Elections

December Challenge 2020 Division 2

Vaccine Distribution, Vaccine Production, Even Pair Sum, String Operations, Hail XOR, Positive Prefixes

Coders' Legacy (Rated for all)

Chef vs Doof, Doof on Cartesian, Doof fires Brackets

February Challenge 2021 Division 1

Team Name, Prime Game

March Challenge 2021 Division 2

Consecutive Adding, Maximum Topological Sort, Space Arrays, Paparazzi Gennady, College Life 4, Interesting XOR!

April Challenge 2021 Division 2

Binary String MEX, Worthy Matrix, Chef and Dice

December Challenge 2021 Division 2 (Unrated)

Valleys and Hills, Rock Paper Scissors, List of Lists

Total Problems Solved: 42