Trung-Hai Bui

• Username: 4★trunghai95
• Country:  Vietnam
• Student/Professional:Student
• Institution:Ho Chi Minh City University of Science 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: 25

Current Ratings Graph Old Ratings Graph

1845 (-21)RatingProvisional
Rating i Provisional Rating, click to know more

October Challenge 2017(2017-10-16 15:00:00)

Global Rank:   2647

Cheated in:   

Ratings System Update

(2017-10-16 15:00:00)

This is the difference due to changing the rating system.This graph is not updated after 20th Dec 2022. Know more

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1845 (+35)RatingProvisional
Rating i Provisional Rating, click to know more

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

Global Rank:   2647

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 (25)

August Challenge 2015

Cooking Machine, Gravity Guy

September Challenge 2015

Count Steps in Matrix

October Challenge 2015

Time measure, Count Subarrays, Who dares to be a millionaire, Spheres, Rupsa and Equilateral Triangle

November Challenge 2015

Receipt Recovery, Chef and collection of stamps, Eugene and function, Chef and cakes

December Challenge 2015

Chef and the stones, Plane Division, Oracle Devu and Longest Common Subsequence, Chef and Filters

November Cook-Off 2015

Sereja and Line, Sereja and Array and Subtracting

December Lunchtime 2015

Computer Network, Distinct Codes

January Long Challenge 2016

Rupsa and the Game, Churu and Balls, Chef and Time Machine, Devu and Perfume

February Challenge 2016

Chef and Strange Operations, Devu and a light discussion, Rectangles of Love, Chef-Detective

March Challenge 2016

Palindromic substrings, maximize the sum, Chef And Special Dishes

April Challenge 2016

Help Watson Escape, Chef And Coloring, Chef and Ballons

May Challenge 2016

Chef and Balls, Laddu

June Challenge 2016

Chef And The Hiring Event, Chef and Array and K, Chef And Binary Operation, Chef and Coins Game, Devu and an Array

July Challenge 2016

Andrash and Stipendium

August Challenge 2016

Chef and His Garden

September Challenge 2016

Chef and Friends, Dividing Machine, Chef and digits of a number, Faded Palindromes, Chef and calculation

January Cook-Off 2016

Chef and Fruits

April Cook-Off 2016

Movie Weekend, Odd Divisors

May Cook-Off 2016

Phantasialand

February Lunchtime 2016

Chef and Socks, Chef and Tic-Tac-Toe

March Lunchtime 2016

Simple Statistics, ABABAABA

July Lunchtime 2016

Drumpf for President!, Lumpy - The Bus Driver

August Lunchtime 2016

Studying Alphabet

September Lunchtime 2016

Chef and Inequality

October Challenge 2017

Max Mex, Counter Test For CHEFSUM, A Balanced Contest

Total Problems Solved: 83