Blackbeard

• Username: 3★sayed_tahsin
• Country:  Bangladesh
• Student/Professional:Student
• Institution:International Islamic University Chittagong 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: 33

Current Ratings Graph Old Ratings Graph

1786 (-16)RatingProvisional
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Starters 99 Division 2 (Rated)(2023-07-19 22:15:02)

Global Rank:   1123

Cheated in:   

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(2023-07-19 22:15:02)

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1706 (-4)RatingProvisional
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Starters 62 Division 2 (Rated)(2022-12-20 00:00:00)

Global Rank:   936

Cheated in:   

Ratings System Update

(2022-12-20 00:00:00)

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Learning Paths (0)

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Contests (33)

August Challenge 2021 Division 3 (Rated)

Problem Difficulties, Chef and Bulb Invention, Olympics Ranking

August Cook-Off 2021 Division 3

Different String, Equal Difference, Which Division, Team Formation

SnackDown 2021 - Online Qualifiers

Lucky Number, Maximum Number Of Distinct Elements

CodeChef Starters 16 Division 3 (Rated)

Professor And Directions, Chef And Salary Pay, Pass or Fail

SnackDown 2021 - Online Round 1A

Min Max LCM, Dance Moves, Round Robin Ranks

December Challenge 2021 Division 3 (Rated)

Valleys and Hills, List of Lists, Utkarsh and Placement tests

SnackDown 2021 - Elimination Parallel (Rated for Div 3)

Yet another subarray problem, Remove Element, Balance Zeroes and Ones, Car Range

CodeChef Starters 21 Division 2 (Rated)

Akash and Grid

CodeChef Starters 22 Division 2 (Rated)

An Interesting Sequence

January Cook-Off 2022 Division 3

Palindromes Not Allowed, Hungry Ashish, Mask Policy

CodeChef Starters 29 Division 3 (Rated)

String protocol, Plusle and Minun on Array, Decomposition Reaction, Bomb the base

March Lunchtime 2022 Division 2

Sad Splits, Adjacency Love

July Lunchtime 2022 Division 2 (Rated)

Easy Pronunciation, Yet Another Palindrome Making Problem

Starters 48 Division 2 (Rated)

Make Palindrome 2, Positive array, Fill The Grid

Starters 51 Division 2 (Rated)

Split N, Copy and Paste, Different Medians

Starters 53 Division 2 (Rated)

Make A and B equal

Starters 54 Division 2 (Unrated)

Equal Distinct

Starters 55 Division 2 (Rated)

Balls and Boxes, Mean and Median

Starters 59 Division 2 (Rated)

Alternative Sufferings, Suspense String, Maximum Subarray , Confusing Concatenations

Starters 60 Division 2 (Rated)

Distinct Numbers, Yet Another Palindrome Problem, Palindrome Flipping

Starters 61 Division 2 (Rated)

Minimise LCS, Weird Subarrays, Subarray Removal

Starters 62 Division 2 (Rated)

Sorted Substrings, Make Multiple, Final Sum

Starters 71 Division 2 (Rated)

Pet Store

February Cook-Off 2023 Division 2 (Rated)

Take Not Less, Permutation and Modulus

Starters 78 Division 2 (Rated)

Bitwise Equation, Valid Expression

Starters 79 Division 2 (Rated)

One Stone or Two Stones, Add smallest prime factor, Distinct Opposite Sums

Starters 82 Division 2 (Rated)

Make A-B Same, Difference Matrix, MIN To MAX

Starters 87 Division 2 (Rated)

Existence

Starters 88 Division 2 (Rated)

Maximum And Or, Unstable Subarray, Chef and Asteroids

Starters 89 Division 2 (Rated)

Plus 2 or Minus 1, Positive or Negative Subarrays, Subarray Removal

Starters 90 Division 2 (Rated)

Crushed Apples and a Balance Scale, Printing Binary Array, Anti Palindrome

Starters 91 Division 2 (Rated)

Maximum Sum Permutation, Blobby Volley Scores, Chef Odd, Odd GCD Permutation

Starters 92 Division 2 (Rated)

Rectangular Tiling, Distance Coloring, Dotify Playlist

Starters 93 Division 2 (Rated)

Break Free, Problem

Starters 94 Division 2 (Rated)

CodeChef Streak, Possible or Not, The Vowel Matrix

Starters 99 Division 2 (Rated)

Card Swipe, Exclusion-Inclusion

Total Problems Solved: 119