Shubham Singh

• Username: 4★rebuild
• Country:  India
• Student/Professional:Student
• Institution:Institute of Engineering and Management, Kolkata West Bengal, India
• 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: 9

Current Ratings Graph Old Ratings Graph

1855 (+58)RatingProvisional
Rating i Provisional Rating, click to know more

December Cook-Off 2020 Division 2(2020-12-22 00:00:02)

Global Rank:   186

Cheated in:   

Ratings System Update

(2020-12-22 00:00:02)

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?

1855 (-16)RatingProvisional
Rating i Provisional Rating, click to know more

December Cook-Off 2020 Division 2(2022-12-20 00:00:00)

Global Rank:   186

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 (9)

September Challenge 2019 Division 2

Easy Fibonacci, Chef Designed a Network, Chef and Interesting Subsequences , Chef and Good Subsequences

September Lunchtime 2019 Division 2

Chef Feeds Cats

October Challenge 2019 Division 2

Missing Number, Chef and Maximum Star Value, Array Modification, Operations on a Matrix, Phone Prices

December Cook-Off 2019 Division 2

Change It

February Challenge 2020 Division 1

School of Geometry, Long Contest and Cook Off Overlaps, Hard Cash, The Theatre Problem, No Change Required

January Lunchtime 2020 Division 2

Bob and His Friends, Chef and Street Food, Under the Tunnels

June Lunchtime 2020 Division 1

Maximum AND

December Cook-Off 2020 Division 2

Self-Destructing Strings, Catch the Thief, Circle of Chaos, Minimum Attendance Requirement

UWCOI 2021 (Rated for all)

Array Swaps, Hidden Numbers

Total Problems Solved: 87