pineriver

• Username: 5★pineriver
• Country:  Japan
• Student/Professional:Other
• 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: 4

Current Ratings Graph Old Ratings Graph

2124? (+107)RatingProvisional
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February Lunchtime 2021 Division 2(2021-02-27 22:45:02)

Global Rank:   50

Cheated in:   

Ratings System Update

(2021-02-27 22:45:02)

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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2124 (+20)RatingProvisional
Rating i Provisional Rating, click to know more

February Lunchtime 2021 Division 2(2022-12-20 00:00:00)

Global Rank:   50

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?

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Contests (4)

January Cook-Off 2021 Division 2

Mex Subsequence, Not Too Colourful, Prime Tuples, Maximise Islands

November Lunchtime 2020 Division 2

Gasoline Introduction, Xor Compare

UWCOI 2021 (Rated for all)

Organisation, Array Swaps, Efficient Delivery, Hidden Numbers

February Lunchtime 2021 Division 2

Average Sorting, Sed Max, Palpal Strings, Coprime Range

Total Problems Solved: 14