Qi Zhang

• Username: 2★qzthrone
• Student/Professional:Student
• Institution:Princeton University, United States
• CodeChef Pro Plan: No Active Plan. View Details

Activity Heat Map

Last 6 Months 2025 (Jan-Jun)2024 (Jul-Dec)2024 (Jan-Jun)

Rating Graph

No. of Contests Participated: 4

Current Ratings Graph Old Ratings Graph

1529? (-37)RatingProvisional
Rating i Provisional Rating, click to know more

June Challenge 2014(2014-06-16 15:00:00)

Global Rank:   4382

Cheated in:   

Ratings System Update

(2014-06-16 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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1529 (+27)RatingProvisional
Rating i Provisional Rating, click to know more

June Challenge 2014(2022-12-20 00:00:00)

Global Rank:   4382

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 (4)

March Challenge 2014

Walk, Little Chef and Numbers

April Challenge 2014

Counting Matrices, Farmer Feb, Divide the Tangerine, Shortest Path in Binary Trees

June Challenge 2014

Chef and Subarray

February Lunchtime 2014

Sereja and ASum

Total Problems Solved: 24