Yin Hao Qian

• Username: 3★chien916
• Country:  United States
• Student/Professional:Student
• Institution:University of Pittsburgh
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

Last 6 Months 2025 (Jan-Jun)2024 (Jul-Dec)2024 (Jan-Jun)

Rating Graph

No. of Contests Participated: 2

Current Ratings Graph Old Ratings Graph

1600? (+173)RatingProvisional
Rating i Provisional Rating, click to know more

November Challenge 2021 Division 3 (Rated)(2021-11-15 15:00:00)

Global Rank:   1049

Cheated in:   

Ratings System Update

(2021-11-15 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?

1600? (-26)RatingProvisional
Rating i Provisional Rating, click to know more

November Challenge 2021 Division 3 (Rated)(2022-12-20 00:00:00)

Global Rank:   1049

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)

None

Practice Paths (0)

None

Contests (2)

October Challenge 2021 Division 3 (Rated)

Longest AND Subarray, Digit Removal, MEX-OR, Three Boxes, Which Mixture

November Challenge 2021 Division 3 (Rated)

Weird Palindrome Making, Hill Sequence, Equal Coins, Which Fuel is Cheaper, Maximise the bridges

Total Problems Solved: 10