Sergey Fedorov

• Username: 4★sergeifedorov
• Country:  Russia
• Student/Professional:Professional
• Organisation:Yandex
• 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: 2

Current Ratings Graph Old Ratings Graph

1891? (+135)RatingProvisional
Rating i Provisional Rating, click to know more

January 2012 Challenge(2012-01-11 15:00:00)

Global Rank:   73

Cheated in:   

Ratings System Update

(2012-01-11 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?

1891? (+147)RatingProvisional
Rating i Provisional Rating, click to know more

January 2012 Challenge(2022-12-20 00:00:00)

Global Rank:   73

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)

December 2011 Long Contest

Birthday Gift, Robot Movings, Ciel and Eggs, Spinning Wheels

January 2012 Challenge

Houses and Restaurants, Gap Filler Game, Lucky Sum

Total Problems Solved: 7