Oleh

• Username: 2★ilmm
• Country:  Ukraine
• Student/Professional:Student
• Institution:National Technical University of Ukraine
• 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

1402 (-8)RatingProvisional
Rating i Provisional Rating, click to know more

May Challenge 2019 Division 2(2019-05-13 15:03:00)

Global Rank:   4388

Cheated in:   

Ratings System Update

(2019-05-13 15:03:00)

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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1402 (-65)RatingProvisional
Rating i Provisional Rating, click to know more

May Challenge 2019 Division 2(2022-12-20 00:00:00)

Global Rank:   4388

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)

Practice Paths (1)

Practice for ZCO and INOI

6%

Contests (8)

November Challenge 2014

Chef and Segment Game, Distinct Characters Subsequence, Let us construct palindrome

December Challenge 2014

XOR with Subset, Chef and Apple Trees

January Challenge 2015

Chef and Stones

February Challenge 2015

Chef and Chain

May Challenge 2018 Division 2

Mighty Friend, Minimum Deletions, Xor Again

Total Problems Solved: 461