Bùi Kiên

• Username: 2★magician_14312
• Country:  Vietnam
• Student/Professional:Student
• Institution:Posts and Telecommunications Institute of Technology, Vietnam
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

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

Rating Graph

No. of Contests Participated: 10

Current Ratings Graph Old Ratings Graph

1453 (+34)RatingProvisional
Rating i Provisional Rating, click to know more

November Challenge 2015(2015-11-16 15:00:00)

Global Rank:   1834

Cheated in:   

Ratings System Update

(2015-11-16 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?

1453 (-164)RatingProvisional
Rating i Provisional Rating, click to know more

November Challenge 2015(2022-12-20 00:00:00)

Global Rank:   1834

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)

December Cook-Off 2012

Reversing directions, Packaging Cupcakes

June Challenge 2013

Dessert Wizard, Predictopus, To challenge or not, Lapindromes

September Challenge 2013

Chef and Integers , CAO Stage-1, CAO Stage-2

January Challenge 2015

Sereja and LCM, Gcd Queries, One Dimensional Kingdoms, Sereja and Votes, Chef and Stones, Chef and A Large Permutation, Sereja and Number Division 2, Queries on the String

February Challenge 2015

Chef and Chain, Chef and Strange Formula, Chef and Equality

April Challenge 2015

Count Sequences, Chef and Array, Chef and Interview, Devus and their voting system

November Challenge 2015

Simple Sum

Total Problems Solved: 36