cheng-han

• Username: 2★rr18
• Country:  Taiwan
• Student/Professional:Student
• Institution:National Cheng Kung University Tainan, Taiwan
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

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

Rating Graph

No. of Contests Participated: 5

Current Ratings Graph Old Ratings Graph

1483 (+10)RatingProvisional
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June Lunchtime 2018 Division 2(2018-06-30 22:30:05)

Global Rank:   1195

Cheated in:   

Ratings System Update

(2018-06-30 22:30:05)

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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1483 (-2)RatingProvisional
Rating i Provisional Rating, click to know more

June Lunchtime 2018 Division 2(2022-12-20 00:00:00)

Global Rank:   1195

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)

April Lunchtime 2018 Division 2

Two vs Ten

May Lunchtime 2018 Division 2

Trace of Matrix

April Challenge 2018 Division 2

Workers

June Lunchtime 2018 Division 2

Counting Pretty Numbers

Coders' Legacy 2018 (Rated)

Fibonacci String

Total Problems Solved: 8