arnab roy

• Username:3★howcum
• Country:  Bangladesh
• Student/Professional:Student
• Institution:Military Institute of Science and Technology, Bangladesh
• CodeChef Pro Plan: No Active Plan. View Details

Activity Heat Map

Last 6 Months 2025 (Jan-Jun)2024 (Jul-Dec)2024 (Jan-Jun)

Rating Graph

No. of Contests Participated: 14

Current Ratings Graph Old Ratings Graph

1613 (+45)RatingProvisional
Rating i Provisional Rating, click to know more

January Challenge 2017(2017-01-18 15:00:00)

Global Rank:   1228

Cheated in:   

Ratings System Update

(2017-01-18 15:00:00)

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?

1613 (-144)RatingProvisional
Rating i Provisional Rating, click to know more

January Challenge 2017(2022-12-20 00:00:00)

Global Rank:   1228

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 (14)

March Challenge 2015

Chef and Notebooks

December Cook-Off 2015

Chef and Subarrays

September Challenge 2016

Chef and digits of a number, Faded Palindromes, Chef and calculation

October Challenge 2016

Chef and Keyboard

November Challenge 2016

Task for Alexey

December Challenge 2016

Train Partner

October Cook-Off 2016

Watson asks Does Permutation Exist, ChefWatson uses Social Network

December Cook-Off 2016

Chef and Subset

September Lunchtime 2016

Chef and Inequality

January Challenge 2017

Capital Movement, Cats and Dogs, Reservior

Total Problems Solved: 31