Nikhil Kumar Singh

• Username: 2★coffee101
• Country:  India
• Student/Professional:Professional
• Organisation:Collegedunia Web Pvt Ltd
• 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: 16

Current Ratings Graph Old Ratings Graph

1466 (+11)RatingProvisional
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April Challenge 2021 Division 3(2021-04-12 15:00:04)

Global Rank:   6559

Cheated in:   

Ratings System Update

(2021-04-12 15:00:04)

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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1466 (-24)RatingProvisional
Rating i Provisional Rating, click to know more

April Challenge 2021 Division 3(2022-12-20 00:00:00)

Global Rank:   6559

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 (16)

July Challenge 2017

Whats in the Name, Calculator , Chef and Sign Sequences

August Long Challenge 2017

Chef and Rainbow Array, Greedy Candidates

September Challenge 2017

Chef and Pick Digit, Minimum Good Permutation, Little Chef and Sums

October Challenge 2017

Max Mex, A Balanced Contest

September Cook-Off 2017

Statistics Construction, Subsequence Equality

November Cook-Off 2017

Random Pair

January Challenge 2018

Maximum Score, Rectangle

February Challenge 2018

Chef And His Characters, Chef And The Patents

February Cook-Off 2018

Chef and Cook-Off, Chef and Tuples

January Challenge 2021 Division 3

Chef and Division 3, Encoded String

February Challenge 2021 Division 3

Chef and Meetings, Maximise Function, Highest Divisor

March Challenge 2021 Division 3

Chef and Groups, No Time to Wait

April Challenge 2021 Division 3

Chef and Dice, Valid Pair, World Record, Strong Language

Total Problems Solved: 65