firi

• Username: 6★firiexp
• Country:  Japan
• Student/Professional:Student
• Institution:University of Electro-Communications, Tokyo, Japan
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

Last 6 Months 2025 (Jan-Jun)2024 (Jul-Dec)2024 (Jan-Jun)

Rating Graph

No. of Contests Participated: 5

Current Ratings Graph Old Ratings Graph

2279 (+50)RatingProvisional
Rating i Provisional Rating, click to know more

July Lunchtime 2021 Division 1(2021-07-31 21:00:00)

Global Rank:   36

Cheated in:   

Ratings System Update

(2021-07-31 21:00:00)

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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2279 (-36)RatingProvisional
Rating i Provisional Rating, click to know more

July Lunchtime 2021 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 (5)

August Lunchtime 2019 Division 2

Destroy Cells, Chef and Trip, Eidi Gift

April Challenge 2020 Division 2

Strange Number, Squared Subsequences, Ready Bitwise, Factor Tree, Unit GCD, Sell All the Cars, Leaked Answers (Challenge), COVID Pandemic and Long Queue

March Lunchtime 2020 Division 2 (Unrated)

Maximize LCM, Good Prefix, Chef Swaps Digits, Strip in a Tree!

June Lunchtime 2020 Division 1

Maximum AND, Gold Mining, Square Submatrices

May Lunchtime 2021 Division 1

Tokens On A Tree, Total Components, K-Subarrays

July Lunchtime 2021 Division 1

Xor Separation, Longest Good Segment

Total Problems Solved: 23