Saimun Islam

• Username: 4★saimun
• Country:  Bangladesh
• Student/Professional:Student
• Institution:Noakhali Science and Technology 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: 36

Current Ratings Graph Old Ratings Graph

1830 (-50)RatingProvisional
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Starters 98 Division 2 (Rated)(2023-07-12 22:30:02)

Global Rank:   1798

Cheated in:   

Ratings System Update

(2023-07-12 22:30:02)

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1843 (-126)RatingProvisional
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Starters 68 Division 1 (Rated till 5-stars)(2022-12-20 00:00:00)

Global Rank:   100

Cheated in:   

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

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Learning Paths (0)

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Practice Paths (0)

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Contests (36)

April Challenge 2020 Division 2

Strange Number, Sell All the Cars, COVID Pandemic and Long Queue

May Challenge 2020 Division 2

Coronavirus Spread, Isolation Centers

March Cook-Off 2020 Division 2

Find Your Gift

April Cook-Off 2020 Division 2

Lift Requests

April Lunchtime 2020 Division 2

Chef in Fantasy League

June Challenge 2020 Division 2

Even Matrix, The Tom and Jerry Game!, Chef and Icecream, Covid Sampling (Challenge), Chef and String, Chef and Price Control

July Challenge 2020 Division 2

Ada King, Missing a Point, Chef and Card Game, Chef and Strings

June Lunchtime 2020 Division 2

Chef and Demonetisation, Increasing Decreasing, Gold Mining

November Challenge 2020 Division 2

Restore Sequence, Ada and Dishes, Magical Candy Store, Iron, Magnet and Wall

October Cook-Off 2020 Division 2

Split the Str Ing, Decreasing Srrnmieeda

November Cook-Off 2020 Division 2

Flip the String, Chef and IPC Certificates

October Lunchtime 2020 Division 2

AND Plus OR

February Lunchtime 2021 Division 2

Average Sorting, Sed Max, Palpal Strings, Coprime Range

May Lunchtime 2021 Division 2

Charges, Tom And Jerry 1, Total Components

May Challenge 2021 Division 2 (Rated)

Tree House, Xor Equality, Tic Tac Toe, Modular Equation

June Lunchtime 2021 Division 2

From Rational to Binary, False Number, Unpleasant Ones

September Cook-Off 2021 Division 2

Zebra Crossing, Fake Swaps, Adjacency Hatred

SnackDown 2021 - Online Qualifiers

Lucky Number, Maximum Number Of Distinct Elements

October Lunchtime 2021 Division 2

Median Rearrangement, Chef and Water Car, Exactly N plus 1 Values

SnackDown 2021 - Online Round 1A

Round Robin Ranks , Dance Moves, Min Max LCM

Exun 2021-22 Division 1 (Unrated)

Sarthak and his Magic Grid, Vedant and his Hidden Array, Aujasvit and the Circle Game, Harshikaa and the Rain

February Lunchtime 2022 Division 1

Magnet Sort

CodeChef Starters 29 Division 2 (Rated)

String protocol, Plusle and Minun on Array, Decomposition Reaction

June Long One 2022 Division 2 (Unrated)

Reduce to zero, Possible GCD

Starters 43 Division 2 (Rated)

Array Sorting, Make them Equal, The Optimal Pairs, Permutation AND, Distinct Palindrome

Starters 58 Division 1 (Unrated)

Equivalent Numbers

Starters 59 Division 1 (Unrated)

Maximum Subarray , Confusing Concatenations

Starters 63 Division 1 (Rated for 5 & 6 stars)

Maximize 1s, Make Length 1, Minimum Absolute Score

Starters 68 Division 1 (Rated till 5-stars)

Boring String, XOR Product, Make Money

Starters 70 Division 2 (Rated)

Minimum distance between 1s, X AND Y Tree, Prime Reversal, Frequency Array Retrieval

Starters 71 Division 2 (Rated)

Pet Store, Flip the Prefix, Maximizing LCS

Starters 74 Division 2 (Rated)

Lcm hates Gcd, Odd Even Binary String

February Cook-Off 2023 Division 2 (Rated)

Take Not Less, Alice Potter And Dumbledore Army, Permutation and Modulus, Minimum Beauty

Starters 79 Division 2 (Rated)

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

Starters 81 Division 2 (Unrated)

Distinct Matrix, Divide Pages

Starters 82 Division 2 (Rated)

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

Starters 87 Division 2 (Rated)

Inversions of subsequences, Existence, AB plus C

Starters 94 Division 2 (Rated)

CodeChef Streak, Possible or Not

Starters 96 Division 2 (Rated)

Swap the numbers, Mex Array, Remove Multiples

Starters 97 Division 2 (Rated)

Make It Special, Schrodinger Smiley, Triplets Min

Starters 98 Division 2 (Rated)

Airport Management, Ball Distribution

Total Problems Solved: 158