Yin Cheng

• Username: 1★yin929
• Country:  United States
• Student/Professional:Student
• Institution:Columbia University in the City of New York USA
• 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: 17

Current Ratings Graph Old Ratings Graph

1379 (+30)RatingProvisional
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April Long Two 2022 Division 3 (Rated)(2022-04-25 15:00:04)

Global Rank:   26

Cheated in:   

Ratings System Update

(2022-04-25 15:00:04)

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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1379 (-171)RatingProvisional
Rating i Provisional Rating, click to know more

April Long Two 2022 Division 3 (Rated)(2022-12-20 00:00:00)

Global Rank:   26

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 (17)

January Cook-Off 2022 Division 3

Mask Policy, Palindromes Not Allowed, Hungry Ashish

January Lunchtime 2022 Division 3

Chef and Lockout Draws

CodeChef Starters 24 Division 3 (Rated)

Avoid Contact, Badminton Serves, EVM Hacking

February Long 2022 - I, Division 3 (Rated)

N Queens Puzzle Solved !, Chef and the Hair Salon

February Cook-Off 2022 Division 3

Lazy Salesman, Peaceful Party

February Long 2022 - II, Division 3 (Rated)

World Chess Championship, Xor Palindrome, Chef and NextGen, Avoid Fixed Points

CodeChef Starters 26 Division 3 (Rated)

Careless Chef, Count the Notebooks, Hostel Room, Control the Pollution

CodeChef Starters 27 Division 3 (Rated)

Too many items, Blackjack, The product mystery

February Lunchtime 2022 Division 3

Good Program, Watching Movies at 2x

CodeChef Starters 28 Division 3 (Rated)

Self Defence Training, Car Choice, Count the Holidays

CodeChef Starters 31 Division 3 (Rated)

Alternating String, Sign Moves, Group Assignment

CodeChef Starters 32 Division 3 (Rated)

Maximize the Minimum, Binary String Cost, Finding Shoes

April Cook-Off 2022 Division 3

Funny Hand

CodeChef Starters 33 Division 3 (Rated)

Minimum Cars required

April Long One 2022, Division 3 (Rated)

Dazzling GCD Pair, Dazzling AXNODR Challenge , The Cooler Dilemma 2

Starters 35 Division 3 (Rated)

Dark Light, Police and Thief

April Long Two 2022 Division 3 (Rated)

Geometric Mean Inequality, Sasta Shark Tank, Best Coupon, Pseudo Sorted Array

Total Problems Solved: 47