Ashikur Rahman

• Username: 4★ashikur_rahman
• Country:  Bangladesh
• Student/Professional:Student
• Institution:Ahsanullah University of Science and Technology Dhaka, 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: 27

Current Ratings Graph Old Ratings Graph

1844 (+62)RatingProvisional
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November Challenge 2020 Division 1(2020-11-16 15:00:00)

Global Rank:   122

Cheated in:   

Ratings System Update

(2020-11-16 15:00:00)

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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1844 (-179)RatingProvisional
Rating i Provisional Rating, click to know more

November Challenge 2020 Division 1(2022-12-20 00:00:00)

Global Rank:   122

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 (27)

January Challenge 2018

Rectangle

February Challenge 2018

Chef And His Characters, Permutation and Palindrome, Chef And The Patents, Akanksha and End of Semester

February Cook-Off 2018

Chef and Cook-Off

February Lunchtime 2018

Jumping in the hills

March Challenge 2018 DIV 2

Chef and Easy Problem, A Big Sale, Mix the Colors, Chef and Glove, Minion Chef and Bananas

March Cook-off 2018 Division 2

Chef Goes to the Cinema, Chef Judges a Competition, Chef Restores a Matrix

September Mega Cook-Off 2018 Division 2

OneTwo, ATM Machine, Make a Permutation

March Lunchtime 2018 Division 2 (Unrated)

Chef and Friends, Three Integers, Magic Elements

April Lunchtime 2018 Division 2

The hardest gcd problem, Two vs Ten

May Challenge 2018 Division 2

Mighty Friend, Minimum Deletions, Xor Again, Fake Binary Search, Dibs on Fibs

August Challenge 2018 Division 1

Modular GCD

November Challenge 2018 Division 2

Chef and Happiness, Chef and Difficult Contests, Good Median, Appy Loves One, Chef and Ridges

October Challenge 2018 Division 2

Appy and Balloons , Minimize Digitsum, Chef and Serves, Byte to Bit

September Lunchtime 2018 Division 2

Judging Delay, Opposite Cites, Chef Restaurant

Quick Code (Rated for Division 2)

Immortal Frieza, Majin Vegeta

February Challenge 2019 Division 1

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

March Challenge 2019 Division 2

Chef and Number Game, Yet Again a Subarray Problem, Chef and a Beautiful Digit, (Challenge) Interleaving Strings, Chef got Recipes

June Challenge 2019 Division 1

Lent Money, Chef and Ingredients, Sum and GCD

February Challenge 2020 Division 1

No Change Required

March Challenge 2020 Division 2

XOR Engine, Pintu and Fruits

April Challenge 2020 Division 2

Strange Number, Squared Subsequences, Unit GCD, Sell All the Cars, Leaked Answers (Challenge), COVID Pandemic and Long Queue

March Cook-Off 2020 Division 2

Box of Chocolates, Mysterious Sequence, Find Your Gift

April Lunchtime 2020 Division 2

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

June Challenge 2020 Division 1

The Tom and Jerry Game!

July Challenge 2020 Division 1

Chefina and Swaps, Missing a Point

August Challenge 2020 Division 2

Chef and Linear Chess, Chef and Wedding Arrangements, Smallest KMP, Another Card Game Problem, Chef Wars - Return of the Jedi, Subsequence Frequency Counting

September Challenge 2020 Division 1

Chefina and Swap, Chef and Trump Cards, Find XOR, Ada Matrix

July Lunchtime 2020 Division 2

Chef and Steps

November Challenge 2020 Division 1

Restore Sequence, Magical Candy Store, Scalar Product Tree

Total Problems Solved: 143