Jaafar Mahmoud

• Username: 4★jaafar95
• Country:  Russia
• Student/Professional:Student
• Institution:Saint Petersburg National Research University of Information Technologies, Mechanics and Optics
• 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: 5

Current Ratings Graph Old Ratings Graph

1891 (+140)RatingProvisional
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March Lunchtime 2019 Division 2(2019-03-30 22:30:02)

Global Rank:   15

Cheated in:   

Ratings System Update

(2019-03-30 22:30:02)

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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1891 (-84)RatingProvisional
Rating i Provisional Rating, click to know more

March Lunchtime 2019 Division 2(2022-12-20 00:00:00)

Global Rank:   15

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 (5)

September Mega Cook-Off 2018 Division 2

ATM Machine, Make a Permutation

October Mega Cook-Off 2018 Division 2

Binary Nim 2, Ada and the Staircase, Pumping Water

September Lunchtime 2018 Division 2

Judging Delay, Opposite Cites, Chef Restaurant

January Challenge 2019 Division 1

Yet Another Problem About Sequences, Distinct Pairs

March Lunchtime 2019 Division 2

Testing Robot, Pogo Stick Competition, Travelling Saleschef

Total Problems Solved: 22