Vivek Kumar

• Username: 3★vivchahar
• Country:  India
• Student/Professional:Student
• Institution:Indian Institute of Technology Guwahati Assam
• 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

1707 (+84)RatingProvisional
Rating i Provisional Rating, click to know more

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

Global Rank:   82

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

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1707 (-156)RatingProvisional
Rating i Provisional Rating, click to know more

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

Global Rank:   82

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 (8)

December Challenge 2018 Division 2

Max and Electrical Panel, Chef and Interactive Contests, Chef and An Ideal Problem, (Challenge) Delete DAG

Plinth-Enigma'19 LNMIIT Techfest - (Rated for all)

XOR! Wait for it, Return of the Gargoyle King

August Challenge 2020 Division 2

Chef Wars - Return of the Jedi, Another Card Game Problem, Chef and Linear Chess, Smallest KMP

September Challenge 2020 Division 2

Find XOR, Coronavirus Spread 2, Ada Matrix, A Problem on Sticks, Chefina and Swap

August Lunchtime 2020 Division 2

Mode of Frequencies

December Challenge 2020 Division 2

Hail XOR, Positive Prefixes, Even Pair Sum, Vaccine Production, Vaccine Distribution

December Cook-Off 2020 Division 2

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

Total Problems Solved: 87