Yun Zhou

• Username: 4★bcloud
• Student/Professional:Professional
• Organisation:Microsoft
• 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: 5

Current Ratings Graph Old Ratings Graph

1825 (-95)RatingProvisional
Rating i Provisional Rating, click to know more

July 2010(2010-07-11 15:00:00)

Global Rank:   235

Cheated in:   

Ratings System Update

(2010-07-11 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?

1825 (+253)RatingProvisional
Rating i Provisional Rating, click to know more

July 2010(2022-12-20 00:00:00)

Global Rank:   235

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)

None

Practice Paths (0)

None

Contests (5)

October 2009 (Contest IX)

Congruent triangles, A puzzle game, Paragraph Formatting, Just a simple sum, Kayaks, Forces in the crystal

November 2009 (Contest X)

The Best Box

April 2010 Contest

Adding Fractions

May 2010 Contest

Nice Quadrangles, Rendezvous, Summing Slopes

Total Problems Solved: 12