Nguyen Duc Duy

• Username: 3★duyboy13579
• Country:  Vietnam
• Student/Professional:Student
• Institution:High School for Gifted Students, Hanoi University of Science Vietnam
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

Last 6 Months 2025 (Jan-Jun)2024 (Jul-Dec)2024 (Jan-Jun)

Rating Graph

No. of Contests Participated: 11

Current Ratings Graph Old Ratings Graph

1760 (-40)RatingProvisional
Rating i Provisional Rating, click to know more

July Challenge 2017(2017-07-17 15:00:00)

Global Rank:   2839

Cheated in:   

Ratings System Update

(2017-07-17 15:00:00)

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?

1760 (+104)RatingProvisional
Rating i Provisional Rating, click to know more

July Challenge 2017(2022-12-20 00:00:00)

Global Rank:   2839

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 (11)

April Challenge 2015

Chef and Interview, Broken Telephone, Inversion sorting, Count Sequences

May Challenge 2015

Devu and binary String, Chef and Prime Divisors, Set Difference , Chef and new recipe

July Challenge 2015

Addition and Multiplication, Bread, MasterChef, Na2a and lucky stone, Chef and Cube

August Challenge 2015

Chef and Path, Chef and insomnia, Aditi and Magic Trick, Devu And Churu , Gravity Guy, Way Out, Cooking Machine

September Challenge 2015

Filling the maze, Chain of Doughnuts, Nikitosh and xor, Count Steps in Matrix, Bank robbery, Lighthouses, Cracking the Code

November Challenge 2015

Chef and collection of stamps

March Challenge 2016

Sereja and Two Strings 2, Palindromic substrings, Floor Distribution, maximize the sum, Parity tree, Chef And Special Dishes

April Challenge 2016

Mario and Luigi

April Lunchtime 2016

Maximum K Sums

July Challenge 2017

Chef and Sign Sequences, Whats in the Name, Calculator

Total Problems Solved: 42