Tuấn Dũng Bùi Đức

• Username: 4★irohhhh
• Country:  Vietnam
• Student/Professional:Student
• Institution:THPT Chuyên Hà Tĩnh Vietnam
• 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: 4

Current Ratings Graph Old Ratings Graph

1954? (+160)RatingProvisional
Rating i Provisional Rating, click to know more

February Challenge 2020 Division 2(2020-02-17 15:00:02)

Global Rank:   230

Cheated in:   

Ratings System Update

(2020-02-17 15:00:02)

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?

1954 (+61)RatingProvisional
Rating i Provisional Rating, click to know more

February Challenge 2020 Division 2(2022-12-20 00:00:00)

Global Rank:   230

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 (4)

September Challenge 2017

Chef and Pick Digit, Minimum Good Permutation, Sum of Cubes, Weasel does Xor on Tree, Fill The Matrix, Little Chef and Sums, Sereja and Commands

October Challenge 2018 Division 2

Chef and Serves, Byte to Bit

March Challenge 2019 Division 2

Chef got Recipes, Chef and a Beautiful Digit, Chef and Number Game, Chef and Soccer

February Challenge 2020 Division 2

Chef and Railway Stations, Expected Change, No Change Required, The Theatre Problem, School of Geometry, Hard Cash, Long Contest and Cook Off Overlaps

Total Problems Solved: 21