Arifur Rahman

• Username: 1★hornet_47
• Country:  Bangladesh
• Student/Professional:Student
• Institution:Khulna University of Engineering & Technology Khulna, 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: 22

Current Ratings Graph Old Ratings Graph

1199 (+8)RatingProvisional
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October Long 2022 Division 4 (Rated)(2022-10-10 15:00:06)

Global Rank:   7884

Cheated in:   

Ratings System Update

(2022-10-10 15:00:06)

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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1199 (-83)RatingProvisional
Rating i Provisional Rating, click to know more

October Long 2022 Division 4 (Rated)(2022-12-20 00:00:00)

Global Rank:   7884

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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Contests (22)

December Challenge 2021 Division 3 (Rated)

Utkarsh and Placement tests

December Lunchtime 2021 Division 3

Chef and Vacation Transportation , Maximum Trio, Chef Loves 1010

CodeChef Starters 21 Division 3 (Rated)

Devendra and Water Sports, Covid and Theatre Tickets

Infinity 2k21 Division 3 (Rated)

The Squid Game, Red Light, Green Light

Code Drive Division 3 (Rated)

Game between friends, Favourite String of Chef

January Long 2022 - II, Division 3 (Rated)

TCS Examination, Chef and Fixed Deposits

January Cook-Off 2022 Division 3

Mask Policy, Hungry Ashish

CodeChef Starters 23 Division 3 (Rated)

Average of Three, Chef and Profits, Subarray Mex

January Lunchtime 2022 Division 3

Subarray permutations, Chef and Subset Additions, Chef and Lockout Draws

March Long Two 2022, Division 3 (Rated)

Chef and Races, The Rating Dilemma

March Lunchtime 2022 Division 3

Minimum number of coins, Buy 2 Get 1 Free

CodeChef Starters 32 Division 3 (Rated)

Binary String Cost, Finding Shoes

April Cook-Off 2022 Division 3

Funny Hand

CodeChef Starters 33 Division 3 (Rated)

Non Adjacent Flips, Make Them Equal, Minimum Cars required, Distinct Dilemma

April Long One 2022, Division 3 (Rated)

Dazzling GCD Pair, Prime Sum, Dazzling AXNODR Challenge , The Cooler Dilemma 2, Pairwise Xors

CodeChef Starters 34 Division 3 (Rated)

Positive Products, Is the Score Consistent, Average Array, Good Quality Bulbs

May Long Two 2022 Division 4 (Rated)

Xor Palindrome, Score High, Total Prize Money, Make them Zero, Degree of Polynomial, Practice makes us perfect

Starters 42 Division 4 (Rated)

How Many Maximums, Minimum number of Flips, Equal Distribution, Age Limit, Divisible by 3, Minimum or Maximum

June Long One 2022 Division 4 (Rated)

Equal Strings, Alternate Additions, Possible GCD, Divisible by i , Subscriptions, Reduce to zero, Expected move, Full Path Eraser, Chairs Requirement

June Lunchtime 2022 Division 4 (Rated)

Equal by XORing, Determine the Score, Too many Floors, It is My Serve, Zero Ones Equal One Zeros

June Long Two 2022 Division 4 (Rated)

Count the ACs, Make all equal using Pairs, Complementary Strand in a DNA, Reversal Sorting, Fitness

October Long 2022 Division 4 (Rated)

Podium Finish, Minimum Pizzas, Building Race

Total Problems Solved: 75