Chau Vu

• Username: 5★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 (Jul-Dec)2025 (Jan-Jun)2024 (Jul-Dec)2024 (Jan-Jun)

Rating Graph

No. of Contests Participated: 8

Current Ratings Graph Old Ratings Graph

2088 (+108)RatingProvisional
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Starters 182 (Rated)(2025-04-16 22:00:02)

Global Rank:   29

Cheated in:   

Ratings System Update

(2025-04-16 22:00:02)

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1980 (-152)RatingProvisional
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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 (8)

March Challenge 2020 Division 2

Pintu and Fruits, XOR Engine

June Challenge 2020 Division 2

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

November Challenge 2020 Division 2

Restore Sequence, Ada and Dishes

January Challenge 2021 Division 3

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

February Challenge 2021 Division 2

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

February Lunchtime 2021 Division 2

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

March Challenge 2021 Division 1

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

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)

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

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

Starters 182 (Rated)

Bar Queue, MasterChef, Beautiful Garden, Palindromic Score

Total Problems Solved: 94