YMDragon

• Username: 5★ymdragon
• Country:  China
• Student/Professional:Student
• Institution:Changjun High School Changshan, China
• 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: 3

Current Ratings Graph Old Ratings Graph

2158? (+255)RatingProvisional
Rating i Provisional Rating, click to know more

Replay of Indian IOITC 2018 #2 (Rated)(2018-07-22 00:00:00)

Global Rank:   3

Cheated in:   

Ratings System Update

(2018-07-22 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?

2158? (+156)RatingProvisional
Rating i Provisional Rating, click to know more

Replay of Indian IOITC 2018 #2 (Rated)(2022-12-20 00:00:00)

Global Rank:   3

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 (3)

April Challenge 2018 Division 2

Chef and Array (Challenge), Vaibhav and Ministers, Weight of Numbers, Count Good Prefixes, Average of Pairs, Workers

Replay of Indian IOI Training Camp (IOITC) #1 (Rated)

CyclesAndColorings, K Perfect Matchings, Circular Intervals

Replay of Indian IOITC 2018 #2 (Rated)

Exact Walks, Coin Denominations, Changing Numbers

Total Problems Solved: 32