Erjin Zhou

• Username: 3★zhouerjin
• Student/Professional:Student
• 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: 6

Current Ratings Graph Old Ratings Graph

1789 (+65)RatingProvisional
Rating i Provisional Rating, click to know more

February 2010 Contest(2010-02-11 15:00:00)

Global Rank:   84

Cheated in:   

Ratings System Update

(2010-02-11 15:00:00)

This is the difference due to changing the rating system.This graph is not updated after 20th Dec 2022. Know more

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1789 (+177)RatingProvisional
Rating i Provisional Rating, click to know more

February 2010 Contest(2022-12-20 00:00:00)

Global Rank:   84

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)

June 2009 (Contest IV)

Product of divisors, The Lucky Draw, The battlefield, Primes in the GCD table, Pack the balls in a box!, Count the squares, Alien Clock

July 2009 (Contest V)

Lights Off, Revisited!

September 2009 (Contest VIII)

Se7en

October 2009 (Contest IX)

Forces in the crystal

November 2009 (Contest X)

Help the DJ

February 2010 Contest

Sorting device

Total Problems Solved: 15