Amar Kumar

• Username: 2★babuya7
• Country:  India
• Student/Professional:Student
• Institution:Motilal Nehru National Institute of Technology Allahabad Uttar Pradesh, India
• 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: 28

Current Ratings Graph Old Ratings Graph

1512 (+17)RatingProvisional
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April Challenge 2020 Division 2(2020-04-13 17:30:02)

Global Rank:   7907

Cheated in:   

Ratings System Update

(2020-04-13 17:30:02)

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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1512 (-42)RatingProvisional
Rating i Provisional Rating, click to know more

April Challenge 2020 Division 2(2022-12-20 00:00:00)

Global Rank:   7907

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 (28)

October Cook-Off 2014

Walk on the Axis

January Challenge 2015

Chef and Stones, Gcd Queries, Sereja and Votes

January Lunchtime 2015

Piece of cake

February Challenge 2015

Chef and Chain, Chef and Strange Formula, Let us play with rank list, Chef and Equality

March Challenge 2015

Chef and Notebooks, Sign Wave

April Challenge 2015

Chef and Interview, Broken Telephone

May Challenge 2015

Chef and new recipe

June Challenge 2015

Chef and Memory Limit, Chef and Polygons

July Challenge 2015

Na2a and lucky stone, Chef and Cube

August Challenge 2015

Aditi and Magic Trick, Gravity Guy, Way Out, Cooking Machine

September Challenge 2015

Chain of Doughnuts, Count Steps in Matrix

May Cook-Off 2015

Devu and friendship testing

March Challenge 2016

Palindromic substrings, maximize the sum

August Challenge 2016

Chef and Chocolate

September Challenge 2016

Faded Palindromes, Chef and digits of a number

January Cook-Off 2016

Chef and Fruits

January Challenge 2017

Cats and Dogs, Reservior

June Challenge 2017

A Good Set, Xenny and Coin Rankings

April Challenge 2020 Division 2

Strange Number, Unit GCD, Sell All the Cars, COVID Pandemic and Long Queue

Total Problems Solved: 52