Mostafa Abdullah

• Username: 4★mostafa_11
• Country:  Egypt
• Student/Professional:Student
• Institution:Faculty of Computers and Information - Cairo University
• 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: 5

Current Ratings Graph Old Ratings Graph

1838 (-76)RatingProvisional
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Starters 72 Division 2 (Rated)(2023-01-04 23:00:02)

Global Rank:   1050

Cheated in:   

Ratings System Update

(2023-01-04 23:00:02)

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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1914 (+5)RatingProvisional
Rating i Provisional Rating, click to know more

July Cook-Off 2022 Division 2 (Rated)(2022-12-20 00:00:00)

Global Rank:   1205

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)

Practice Paths (1)

Rise from 3* to 4*

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Contests (5)

CodeChef Starters 24 Division 3 (Rated)

Avoid Contact, Badminton Serves, Divisors and Reciprocals, Yet Another Constructive Problem, EVM Hacking, Anti Palindrome

February Cook-Off 2022 Division 2

Perfect Permutation, PerMEXuation , Mango Market, Prefix Permutation

CodeChef Starters 26 Division 2 (Unrated)

Car or Bike, Control the Pollution, Hostel Room, Count the Notebooks, Valentine is Coming, Careless Chef

CodeChef Starters 31 Division 2 (Rated)

XOR and AND, Alternating String, Sign Moves, The Unchanging OR

July Cook-Off 2022 Division 2 (Rated)

Permutation And Median, Xor Permutation

Starters 72 Division 2 (Rated)

N Triplets

Total Problems Solved: 50