Xinyu Pan

• Username: 4★piffnp
• Country:  Hong Kong (SAR)
• Student/Professional:Student
• Institution:The Chinese University of Hong Kong
• 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: 5

Current Ratings Graph Old Ratings Graph

1853 (-40)RatingProvisional
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February Challenge 2019 Division 1(2019-02-13 15:00:00)

Global Rank:   833

Cheated in:   

Ratings System Update

(2019-02-13 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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1853 (+11)RatingProvisional
Rating i Provisional Rating, click to know more

February Challenge 2019 Division 1(2022-12-20 00:00:00)

Global Rank:   833

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)

March Challenge 2018 DIV 2

Chef and Easy Problem, A Big Sale, Mix the Colors, Chef and Glove, Minions and Voting, Minion Chef and Bananas, Pishty and Triangles

April Challenge 2018 Division 1

Count Good Prefixes, Chef and Same Old Recurrence, Highway Crossing, Cutting Plants

ALKHWARIZM (Rated)

Help Voldemort, Sam, The Charming Angel

January Challenge 2019 Division 1

Yet Another Problem About Sequences, Different Neighbours, Partition the Graph, Distinct Pairs, A Pizza Slice

February Challenge 2019 Division 1

Manhattan Rectangle, Chef and Secret Ingredients, Art of Balance

Total Problems Solved: 29