Ahnaf Hasan Shifat

• Username: 4★ah__f
• Country:  Bangladesh
• Student/Professional:Student
• Institution:Comilla University, Bangladesh
• 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: 14

Current Ratings Graph Old Ratings Graph

1812 (+24)RatingProvisional
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Starters 155 (Rated)(2024-10-09 22:00:02)

Global Rank:   578

Cheated in:   

Ratings System Update

(2024-10-09 22:00:02)

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1704 (-1)RatingProvisional
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Starters 69 Division 2 (Rated)(2022-12-20 00:00:00)

Global Rank:   625

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)

April Challenge 2020 Division 2

COVID Pandemic and Long Queue, Sell All the Cars

August Lunchtime 2020 Division 2

Mode of Frequencies

September Lunchtime 2020 Division 2

GCD operations, Watermelon

February Lunchtime 2021 Division 3

Daanish and Problems, Palpal Strings, Smallest Possible Whole Number, Coprime Range

Starters 55 Division 4 (Rated)

Fever, Broken Phone, Mean and Median, Permutation Clear, Balls and Boxes

Starters 63 Division 3 (Rated)

One-XOR Deletions, Make Length 1, Minimum Absolute Score, Avoid Squares Please

Starters 64 Division 3 (Rated)

Distinct Colors, Luigi and Uniformity, Mario and the Broken String

Starters 68 Division 3 (Rated)

Boring String, XOR Product, Expense List, Make AP, Make Money

Starters 69 Division 2 (Rated)

Akash and Dinner, Distinct Sequence

Starters 81 Division 2 (Unrated)

Divide Pages

Starters 121 Division 2 (Rated)

Frequal, Anti Adjacent Swaps, Caesar Cipher Lite

Starters 132 Division 2 (Rated)

ALIEN-OR, Optimal Flip, GAME 11

Starters 155 (Rated)

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

Total Problems Solved: 109