Alexander Crustev

• Username: 4★perchema
• Country:  Bulgaria
• Student/Professional:Student
• Institution:Varna High School of Mathematics Varna 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: 8

Current Ratings Graph Old Ratings Graph

1863 (+241)RatingProvisional
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June Challenge 2018 Division 1(2018-06-11 15:00:00)

Global Rank:   36

Cheated in:   

Ratings System Update

(2018-06-11 15:00:00)

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1863 (-177)RatingProvisional
Rating i Provisional Rating, click to know more

June Challenge 2018 Division 1(2022-12-20 00:00:00)

Global Rank:   36

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 (8)

August Challenge 2016

Fighting Ebola, Chef and His Garden, A Good Problem, Maximum Grid, Funny gnomes, Chef and Round Run, Chef and Chocolate, Chef and Circle Run

September Challenge 2016

Dividing Machine

October Challenge 2016

Chef and Three Dogs

May Challenge 2017

Gotham PD

June Challenge 2017

Chef and Prime Queries, Cloning

March Challenge 2018 DIV 2

Minion Chef and Bananas, Minions and Voting, Chef and Glove, A Big Sale, Mix the Colors, Chef and Gcd Queries, Chef and Easy Problem, Pishty and Triangles

April Challenge 2018 Division 2

Vaibhav and Ministers, Cutting Plants, Weight of Numbers, Highway Crossing, Count Good Prefixes, Average of Pairs, Workers

June Challenge 2018 Division 1

Two Flowers, Vision, Ways to Work, Expected Buildings, Archi and Tree

Total Problems Solved: 33