Sunny Kumar

• Username: 4★rounsunn
• Country:  India
• Student/Professional:Student
• Institution:Indian Institute of Technology Dhanbad
• 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: 7

Current Ratings Graph Old Ratings Graph

1823 (-46)RatingProvisional
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September Lunchtime 2019 Division 1(2019-09-28 22:30:00)

Global Rank:   394

Cheated in:   

Ratings System Update

(2019-09-28 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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1823 (+17)RatingProvisional
Rating i Provisional Rating, click to know more

September Lunchtime 2019 Division 1(2022-12-20 00:00:00)

Global Rank:   394

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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Contests (7)

October Challenge 2018 Division 2

Beautiful Bricks, Minimize Digitsum, Chef and Serves, Byte to Bit, Chef and Circles, Appy and Balloons

July Lunchtime 2018 Division 2

Split Stones

September Lunchtime 2018 Division 2

Judging Delay, Chef Restaurant

January Challenge 2019 Division 2

Fancy Quotes, A Pizza Slice, Chef and Modulo Game, Distinct Pairs, Lucky Number Game, Different Neighbours, Yet Another Problem About Sequences

January Cook-Off 2019 Division 1

Ada School

January Lunchtime 2019 Division 2

Rooks, The Nights Watch

February Challenge 2019 Division 2

Manhattan Rectangle, Guess It Right, Chef and Magical Jars, Chef and Secret Ingredients, Appy and Contest, (Challenge) Chef with Orchestra in the Kitchen, Art of Balance, Deputy Chef

September Lunchtime 2019 Division 1

Find the Sum

Total Problems Solved: 31