Chau Vu

• Username: 4★rainbowbunny
• 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: 7

Current Ratings Graph Old Ratings Graph

1980 (+134)RatingProvisional
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March Challenge 2021 Division 1(2021-03-15 15:00:00)

Global Rank:   75

Cheated in:   

Ratings System Update

(2021-03-15 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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1980 (-152)RatingProvisional
Rating i Provisional Rating, click to know more

March Challenge 2021 Division 1(2022-12-20 00:00:00)

Global Rank:   75

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 (7)

March Challenge 2020 Division 2

Pintu and Fruits, XOR Engine

June Challenge 2020 Division 2

Even Matrix, The Tom and Jerry Game!, Chef and Icecream, Chef and String, Chef and Price Control

November Challenge 2020 Division 2

Restore Sequence, Ada and Dishes

January Challenge 2021 Division 3

Encoded String, Point Of Impact, Chef and Division 3, Fair Elections, Watching CPL, Guess the Tiling, And-Or Game

February Challenge 2021 Division 2

XOR Sums, Maximise Function, Multiple Games, Prime Game, Another Tree with Number Theory, Team Name, Frog Sort

February Lunchtime 2021 Division 2

Average Sorting, Sed Max, Palpal Strings, Coprime Range, Independent Set

March Challenge 2021 Division 1

Maximum Topological Sort, Consecutive Adding, Space Arrays, Dense Graph, Paparazzi Gennady

May Challenge 2021 Division 1 (Unrated)

Xor Equality, Tic Tac Toe

November Challenge 2021 Division 1 (Unrated)

Xor Equation, Weird Palindrome Making, Hill Sequence, Maximise the bridges

January Long 2022 - II, Division 1 (Unrated)

Array Partition, Power Sum, Tree Master, Sum and OR, Crying Colours

February Long 2022 - I, Division 1 (Unrated)

Random OR, Remove Adjacent, Bitwise Blend, Binary Base Basics, Digit Multiplication By K

February Long 2022 - II, Division 1 (Unrated)

Sequence GCD, Bitwise swaps, Xor Palindrome

CodeChef Starters 26 Division 1 (Unrated)

Careless Chef, Car or Bike, Valentine is Coming, Count the Notebooks, Hostel Room, Control the Pollution

Total Problems Solved: 90