Marco Lau

• Username: 2★marco0109
• Country:  Hong Kong (SAR)
• Student/Professional:Student
• Institution:The Hong Kong Polytechnic University
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

Last 6 Months 2026 (Jan-Jun)2025 (Jul-Dec)2025 (Jan-Jun)

Rating Graph

No. of Contests Participated: 2

Current Ratings Graph Old Ratings Graph

1515? (+271)RatingProvisional
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CodeChef Starters 25 Division 3 (Rated)(2022-02-09 23:00:04)

Global Rank:   400

Cheated in:   

Ratings System Update

(2022-02-09 23:00:04)

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1515? (-193)RatingProvisional
Rating i Provisional Rating, click to know more

CodeChef Starters 25 Division 3 (Rated)(2022-12-20 00:00:00)

Global Rank:   400

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)

Practice Paths (3)

Dynamic programming

6%

Jump from 2* to 3*

28%

Level up from 1* to 2*

71%

Contests (2)

February Long 2022 - I, Division 3 (Rated)

Binary Base Basics, N Queens Puzzle Solved !, Chef and the Hair Salon

CodeChef Starters 25 Division 3 (Rated)

Building Towers, Equal MEX, Points and Lines, Fit in Data Type, Chef and His Fruit Stand

February Long 2022 - II, Division 2 (Unrated)

Avoid Fixed Points, Xor Palindrome

March Long One 2022, Division 2 (Unrated)

Akash and Function, Substring of a Substring, Exact Marks

Total Problems Solved: 209