black hole

• Username: 2★blackhole111
• Country:  India
• Student/Professional:Student
• Institution:National Institute of Technology, Delhi India
• 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: 4

Current Ratings Graph Old Ratings Graph

1483? (+89)RatingProvisional
Rating i Provisional Rating, click to know more

February Challenge 2017(2017-02-19 15:00:00)

Global Rank:   1866

Cheated in:   

Ratings System Update

(2017-02-19 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?

1483 (-156)RatingProvisional
Rating i Provisional Rating, click to know more

February Challenge 2017(2022-12-20 00:00:00)

Global Rank:   1866

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 (4)

September Challenge 2015

Count Steps in Matrix

August Challenge 2016

Chef and Chocolate

February Challenge 2017

Chef and His Apartment Dues, Gerrymander

Total Problems Solved: 13