Vali Lucifer

• Username: 4★roman_emperor
• Country:  United States
• Student/Professional:Student
• Institution:University of California, Berkeley Berkeley, California, USA
• 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: 2

Current Ratings Graph Old Ratings Graph

1930? (+78)RatingProvisional
Rating i Provisional Rating, click to know more

January Challenge 2021 Division 2(2021-01-11 15:00:02)

Global Rank:   326

Cheated in:   

Ratings System Update

(2021-01-11 15:00:02)

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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1930? (+84)RatingProvisional
Rating i Provisional Rating, click to know more

January Challenge 2021 Division 2(2022-12-20 00:00:00)

Global Rank:   326

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 (2)

January Challenge 2021 Division 2

Chef and Ants, Expected Number of SCCs, Watching CPL, Fair Elections

December Challenge 2020 Division 2

Hail XOR, Square Root of LCA Convolution, String Operations, Positive Prefixes, Even Pair Sum, Vaccine Production, Vaccine Distribution

Total Problems Solved: 18