Junkun Chen

• Username:2★pb_ds
• Country:  China
• Student/Professional:Student
• Institution:Tsinghua University
• CodeChef Pro Plan: No Active Plan. View Details

Activity Heat Map

Last 6 Months 2024 (Jul-Dec)2024 (Jan-Jun)2023 (Jul-Dec)2023 (Jan-Jun)

Rating Graph

No. of Contests Participated: 5

Current Ratings Graph Old Ratings Graph

1499 (-38)RatingProvisional
Rating i Provisional Rating, click to know more

December Challenge 2016(2016-12-12 15:00:00)

Global Rank:   2103

Cheated in:   

Ratings System Update

(2016-12-12 15:00:00)

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

How the rating system works?

1499 (-36)RatingProvisional
Rating i Provisional Rating, click to know more

December Challenge 2016(2022-12-20 00:00:00)

Global Rank:   2103

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 (5)

October Challenge 2015

Count Subarrays, Who dares to be a millionaire, Spheres

June Challenge 2016

Chef And The Hiring Event, Chef and Rectangle Array, Chef and New Game, Chef and Array and K, Chef And Binary Operation, Chef and Coins Game, Chef and cities, Misha and Geometry, Devu and an Array, Chef and Sad Pairs

November Challenge 2016

Chef and Bike

December Challenge 2016

Sereja and Increasing subsequence

Total Problems Solved: 48