Richard Knoll

• Username: 4★rknoll2
• Country:  United Kingdom
• Student/Professional:Professional
• Organisation:Google
• 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: 5

Current Ratings Graph Old Ratings Graph

1951 (+21)RatingProvisional
Rating i Provisional Rating, click to know more

May Lunchtime 2020 Division 1(2020-05-30 22:30:00)

Global Rank:   209

Cheated in:   

Ratings System Update

(2020-05-30 22:30:00)

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?

1951 (-75)RatingProvisional
Rating i Provisional Rating, click to know more

May Lunchtime 2020 Division 1(2022-12-20 00:00:00)

Global Rank:   209

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 (5)

April Challenge 2020 Division 2

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

May Challenge 2020 Division 1

Chef and Bitwise Product, (Challenge) Nanobots, Sorting Vases, Triple Sort, Buying a New String

April Cook-Off 2020 Division 2

Matrix Decomposition, Lift Requests

April Lunchtime 2020 Division 2

Another Birthday Present!, Positive Mex, Chef in Fantasy League

May Lunchtime 2020 Division 1

Convert the String, Tree difference

Total Problems Solved: 54