Xin Yin

• Username: 2★abc637a
• Country:  United States
• Student/Professional:Student
• Institution:University at Buffalo, The State University of New York
• 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: 12

Current Ratings Graph Old Ratings Graph

1485 (+102)RatingProvisional
Rating i Provisional Rating, click to know more

November Challenge 2018 Division 2(2018-11-12 15:00:02)

Global Rank:   110

Cheated in:   

Ratings System Update

(2018-11-12 15:00:02)

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?

1485 (-193)RatingProvisional
Rating i Provisional Rating, click to know more

November Challenge 2018 Division 2(2022-12-20 00:00:00)

Global Rank:   110

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 (12)

December Challenge 2016

Kirito in labyrinth, Train Partner

December Lunchtime 2016

Superheroes and villains, Fly height mode

February Cook-Off 2017

Download file, Cooking Game

April Challenge 2017

(CH) Serejs and Billiards

May Challenge 2017

Chef and Subsequences

December Challenge 2017

Chef and Direction

March Cook-Off 2017

Yet Another Card Game, Safe Robot, Rainbow Graph

September Lunchtime 2017

Chef and Dice, Chef and Cook-Off Contests

November Challenge 2018 Division 2

Chef and Ridges, Appy Loves One, Good Median, Chef, Primes and Trees (Challenge), Magician versus Chef 2, Chef and Difficult Contests, Chef and Happiness

Total Problems Solved: 25