Krasen Vachev

• Username: 1★block4o
• Country:  Bulgaria
• Student/Professional:Student
• Institution:Technical University of Sofia Sofia, Bulgaria
• 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: 7

Current Ratings Graph Old Ratings Graph

1149 (-260)RatingProvisional
Rating i Provisional Rating, click to know more

February Challenge 2015(2015-02-16 15:00:00)

Global Rank:   6705

Cheated in:   

Ratings System Update

(2015-02-16 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?

1149 (-214)RatingProvisional
Rating i Provisional Rating, click to know more

February Challenge 2015(2022-12-20 00:00:00)

Global Rank:   6705

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 (7)

February Cook-Off 2014

Chef and Remissness

March Cook-Off 2014

Dividing Stamps

April Challenge 2014

Farmer Feb

January Challenge 2015

Chef and Stones, Gcd Queries

February Challenge 2015

Let us play with rank list

Total Problems Solved: 43