Rishabh Kumar

• Username: 2★krisharker
• Student/Professional:Student
• Institution:Indian Institute of Technology Roorkee Uttarakhand, 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: 8

Current Ratings Graph Old Ratings Graph

1520 (+68)RatingProvisional
Rating i Provisional Rating, click to know more

May Cook-Off 2019 Division 2(2019-05-20 00:02:00)

Global Rank:   581

Cheated in:   

Ratings System Update

(2019-05-20 00:02:00)

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?

1520 (-140)RatingProvisional
Rating i Provisional Rating, click to know more

May Cook-Off 2019 Division 2(2022-12-20 00:00:00)

Global Rank:   581

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)

None

Practice Paths (0)

None

Contests (8)

January Challenge 2015

Chef and Stones, Sereja and Votes, One Dimensional Kingdoms

June Challenge 2016

Devu and an Array

March Challenge 2017

Xenny and Alternating Tasks, Bear and Extra Number, (CH) Bear and Sorted Rows, Bandwidth of a matrix

April Challenge 2017

Similar Dishes

April Cook-Off 2019 Division 2

Pied Piper vs Hooli, Making a Meal, Chef Learning Hungarian Algorithm

May Cook-Off 2019 Division 2

Chain Reaction, Recover the Sequence

Total Problems Solved: 60