black_coder

• Username: 3★black_coder_bu
• Country:  Bangladesh
• Student/Professional:Student
• Institution:Barisal University Bangladesh
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

Last 6 Months 2025 (Jul-Dec)2025 (Jan-Jun)2024 (Jul-Dec)2024 (Jan-Jun)

Rating Graph

No. of Contests Participated: 16

Current Ratings Graph Old Ratings Graph

1620 (-68)RatingProvisional
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Starters 80 Division 2 (Rated)(2023-03-08 23:00:02)

Global Rank:   1486

Cheated in:   

Ratings System Update

(2023-03-08 23:00:02)

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1464 (-118)RatingProvisional
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December Long 2022 Division 3 (Rated)(2022-12-20 00:00:00)

Global Rank:   58

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

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Learning Paths (0)

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Practice Paths (0)

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Contests (16)

December Challenge 2018 Division 2

Chef and Interactive Contests

November Challenge 2018 Division 2

Chef and Difficult Contests

January Lunchtime 2019 Division 2

The Nights Watch

February Challenge 2019 Division 2

Appy and Contest

March Challenge 2019 Division 2

Chef and Number Game, Chef and a Beautiful Digit

December Lunchtime 2020 Division 2 (Unrated)

Three Letters, Sed Sequences, One Zero Swaps

December Lunchtime 2021 Division 3

Maximum Trio, Romantic Reversals, Optimal Sorting, Chef Loves 1010, Chef and Vacation Transportation

Starters 37 Division 4 (Rated)

The Mango Truck, Roller Coaster, Beat the Average, Laptop Recommendation , Infernos, Maximum OR Minimum

Starters 46 Division 4 (Rated)

Group Assignment, Army Training, MATH1 Enrolment, Sort the String, Array sorting, Prime Xor, Counting Words

Starters 62 Division 2 (Rated)

Sorted Substrings, Make Multiple, Final Sum

Starters 71 Division 3 (Rated)

Pet Store, Flip the Prefix, Snapchat, Perfect Trio, Maximizing LCS

December Long 2022 Division 3 (Rated)

Gcd of Subarrays, Maximise XOR, Reach fast, Divisible by K, Divisible by A_i

Starters 74 Division 2 (Rated)

Lcm hates Gcd, Odd Even Binary String

January Long 2023 Division 3 (Rated)

Asymmetric Swaps, Minimize the Maximum, Array Halves, Far from origin

February Cook-Off 2023 Division 2 (Rated)

Take Not Less, Permutation and Modulus, Minimum Beauty

Starters 80 Division 2 (Rated)

Permutation Subsequence

Total Problems Solved: 58