Weichao Luo

• Username: 4★lwc626
• Student/Professional:Professional
• Organisation:Microsoft
• 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: 6

Current Ratings Graph Old Ratings Graph

1917 (+72)RatingProvisional
Rating i Provisional Rating, click to know more

May Challenge 2018 Division 2(2018-05-14 15:00:00)

Global Rank:   111

Cheated in:   

Ratings System Update

(2018-05-14 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?

1917 (+24)RatingProvisional
Rating i Provisional Rating, click to know more

May Challenge 2018 Division 2(2022-12-20 00:00:00)

Global Rank:   111

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 (6)

September 2010 Challenge

Brush Fire, Cake Production Line, Bytelandian Shoppers, Trees Again, Multiples of 3

November 2010 Challenge

Randomly Testing Circuits, Bombing, Chefs Bad Day

October Challenge 2017

Max Mex, Counter Test For CHEFSUM, A Balanced Contest

April Challenge 2018 Division 2

Cutting Plants, Workers, Average of Pairs, Count Good Prefixes, Highway Crossing, Weight of Numbers

May Challenge 2018 Division 2

Mighty Friend, Change the Signs, Minimum Deletions, Xor Again, Fake Binary Search, Dibs on Fibs

Total Problems Solved: 34