Tong Chen

• Username: 2★ct123098
• Country:  China
• Student/Professional:Student
• Institution:Experimental High School Attached to Beijing Normal University Beijing Shi, China
• 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

1426? (-439)RatingProvisional
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March Challenge 2018 DIV 2(2018-03-12 15:00:00)

Global Rank:   9821

Cheated in:   

Ratings System Update

(2018-03-12 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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1426? (-199)RatingProvisional
Rating i Provisional Rating, click to know more

March Challenge 2018 DIV 2(2022-12-20 00:00:00)

Global Rank:   9821

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 (2)

October Challenge 2017

Chef and Magic Arrays, Chef and a great voluntary Program, Chef and Cycled Cycles, Shooting on the array, Max Mex, Chef and Horcrux, Counter Test For CHEFSUM, A Balanced Contest, (Challenge) Connecting computers, Lucky Edge

March Challenge 2018 DIV 2

Chef and Glove

Total Problems Solved: 11