Aymane Lotfi

• Username: 5★johnylas
• Country:  France
• Student/Professional:Student
• Institution:Ecole Centrale Paris Châtenay-Malabry, France
• 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: 16

Current Ratings Graph Old Ratings Graph

2002 (+61)RatingProvisional
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Starters 161 (Rated)(2024-11-20 22:30:02)

Global Rank:   13

Cheated in:   

Ratings System Update

(2024-11-20 22:30:02)

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1844 (-28)RatingProvisional
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April Lunchtime 2020 Division 2(2022-12-20 00:00:00)

Global Rank:   291

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 (16)

February Challenge 2019 Division 2

Chef and Secret Ingredients, Chef and Magical Jars, Deputy Chef, Appy and Contest, Art of Balance

April Lunchtime 2019 Division 2

Attendance, Fast Food, Minimum Sum

August Challenge 2019 Division 2

Dilemma, Football, Distribute Apples, Zombie and the Caves

August Lunchtime 2019 Division 2

Eidi Gift, Chef and Trip

September Challenge 2019 Division 2

Easy Fibonacci, Chef and Interesting Subsequences , Chef and Good Subsequences

December Lunchtime 2019 Division 2

The Evil Professor, Stupid Machine, Check Algorithm, Guess the number

Alkhwarizm (Rated for all)

Danny Wants To Know

April Lunchtime 2020 Division 2

Another Birthday Present!, Positive Mex, Chef in Fantasy League

SnackDown 2021 - Online Qualifiers

Lucky Number

SnackDown 2021 - Online Round 1A

Min Max LCM, Dance Moves, Round Robin Ranks

November Challenge 2021 Division 2 (Unrated)

Xor Equation

Starters 151 (rated)

Ball Game, Convert string, Shooting (Easy)

Starters 152 (Rated)

Maximize Hamming Distance, Range Minimize

Starters 153 (Rated)

Butterfly, Another Game, Colorful Tree (Easy Version), Xometry (Easy Version)

Starters 154 (Rated)

Add 1 or 2 Game, Triangle Count (Easy), GCD and XOR

Starters 155 (Rated)

GCD to 1 (Easy), GCD to 1 (Hard), Replace With First, Prefix Suffix Min Max, Array Concatanation

Starters 157 (Rated)

Small, Smaller, Smallest, Normal is Good, Not-too-far Replacement

Starters 161 (Rated)

Temporary Temperature, Red-Blue Sort, One To Three, Two Cards, Quick Exit

Total Problems Solved: 67