Abdul Quaum

• Username: 2★op678
• Country:  Bangladesh
• Student/Professional:Student
• Institution:Chittagong University of Engineering & Technology, Bangladesh
• CodeChef Pro Plan: No Active Plan. View Details

Submissions 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

1548 (+20)RatingProvisional
Rating i Provisional Rating, click to know more

June Challenge 2017(2017-06-12 15:00:00)

Global Rank:   3907

Cheated in:   

Ratings System Update

(2017-06-12 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?

1548 (-43)RatingProvisional
Rating i Provisional Rating, click to know more

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

Global Rank:   3907

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 (14)

November Challenge 2014

Let us construct palindrome, Distinct Characters Subsequence

December Challenge 2014

Chef and Apple Trees

October Lunchtime 2014

Tanu and Head-bob

January Challenge 2015

Chef and Stones, Gcd Queries

February Challenge 2015

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

March Challenge 2015

Chef and Notebooks

November Challenge 2015

Chef and cakes

September Lunchtime 2015

Sum of palindromic numbers

September Lunchtime 2016

Chef and Inequality

June Challenge 2017

A Good Set, Xenny and Coin Rankings, Triplets

IOPC 2017 (Rated)

The Birthday Tears, Max Out

Total Problems Solved: 24