Petro Tarnavskyi

• Username: 4★petro1488
• Country:  Ukraine
• Student/Professional:Student
• Institution:National University of Lviv
• 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: 12

Current Ratings Graph Old Ratings Graph

1980 (+71)RatingProvisional
Rating i Provisional Rating, click to know more

July Cook-Off 2022 Division 1 (Rated)(2022-07-03 22:30:00)

Global Rank:   64

Cheated in:   

Ratings System Update

(2022-07-03 22:30:00)

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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1980 (-182)RatingProvisional
Rating i Provisional Rating, click to know more

July Cook-Off 2022 Division 1 (Rated)(2022-12-20 00:00:00)

Global Rank:   64

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 (12)

June Challenge 2019 Division 2

Chef and Proxy, Road Signs, Guddu on a Date

December Challenge 2019 Division 2

Chefina and Ranges, Plus Multiply, Binary XOR, Easy Subsequence Selection, Sticky Notes, That Is My Score!, Addition

January Challenge 2020 Division 2

Chef and Dynamo, Doraemon, Breaking Bricks

June Challenge 2020 Division 2

The Tom and Jerry Game!, Chef and Price Control, Chef and String, Chef and Icecream, Operations on a Tuple, Even Matrix

July Challenge 2020 Division 2

Ada King, Missing a Point, Chef and Card Game, Chef and Strings

August Challenge 2020 Division 1

Subsequence Frequency Counting, Smallest KMP, Chef and Wedding Arrangements

September Challenge 2020 Division 1

Find XOR

July Cook-Off 2020 Division 1

OR-thodox Distinction, Even-tual Reduction

August Cook-Off 2020 Division 1

Red-blue Trees, Polygon Relationship

October Challenge 2020 Division 1

Inversions, Positive AND, Replace for X, D-Dimensional MST

Coders' Legacy (Rated for all)

Chef vs Doof, Doof on Cartesian, Doof fires Brackets, Jeremy gets a gift

SnackDown 2021 - Online Qualifiers

Lucky Number, Minimise Difference, Maximum Number Of Distinct Elements, Prefix as a Substring 2

SnackDown 2021 - Online Round 1A

Round Robin Ranks , Dance Moves, Min Max LCM

SnackDown 2021 - Online Round 1B

Insider Subsequences, Queens Placement , Largest Laddu, Help Nishant

SnackDown 2021 - Final Round Parallel Contest (Unrated)

Ones Guessing

July Cook-Off 2022 Division 1 (Rated)

String Break, Segmentation Fault

Total Problems Solved: 54