Md. Nafiz Fouad Sarker

• Username: 4★iridescent_one
• Country:  Bangladesh
• Student/Professional:Student
• Institution:Jahangirnagar University Dhaka, 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: 40

Current Ratings Graph Old Ratings Graph

1926 (-34)RatingProvisional
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Starters 130 Division 2 (Rated)(2024-04-17 22:00:02)

Global Rank:   1191

Cheated in:   

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(2024-04-17 22:00:02)

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1816 (-49)RatingProvisional
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June Cook-Off 2022 Division 2 (Rated)(2022-12-20 00:00:00)

Global Rank:   588

Cheated in:   

Ratings System Update

(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 (40)

December Lunchtime 2020 Division 2 (Unrated)

Sed Sequences

January Cook-Off 2021 Division 3

Prime Tuples, Distinct Pair Sums, Maximise Islands, Password

February Lunchtime 2021 Division 2

Average Sorting, Palpal Strings, Coprime Range

May Cook-Off 2021 Division 2

The Last Problem

June Cook-Off 2021 Division 2

The Wave

June Lunchtime 2021 Division 2

False Number

August Cook-Off 2021 Division 2

Odd Array, Different String, Chef and Closure, Equal Difference, Clear the Array

CodeChef Starters 9 Division 3 (Rated)

Black cells in a chessboard, Large Square, Bus full of passengers

CodeChef Starters 27 Division 2 (Rated)

String Reverse, Distinct Binary Strings, The product mystery

February Lunchtime 2022 Division 2

Four Equidistant Points on a Grid, Parallel Processing, Magnet Sort

CodeChef Starters 29 Division 2 (Rated)

String protocol, Plusle and Minun on Array, Decomposition Reaction

March Lunchtime 2022 Division 2

Sad Splits

April Cook-Off 2022 Division 2

Sticks and Rectangles

CodeChef Starters 34 Division 2 (Rated)

Binary Mismatch, Average Array, Binary String Xor

April Lunchtime 2022 Division 2(Rated)

Buckets Full of Candies, Pair Pain

Starters 36 Division 2 (Rated)

Presents for Cheffina

Starters 38 Division 2 (Rated)

Good Pairs, Average Gift, Circular Track

May Lunchtime 2022 Division 2 (Rated)

Bucket and Water Flow , Maximum Pairwise Modular Sum

June Cook-Off 2022 Division 2 (Rated)

Simple XOR, Break the Stick

Starters 82 Division 2 (Rated)

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

Starters 87 Division 2 (Rated)

Existence, AB plus C

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, Sum of Goodness, Printing Binary Array, Anti Palindrome

Starters 92 Division 2 (Rated)

Rectangular Tiling, Distance Coloring, Dotify Playlist

Starters 93 Division 2 (Rated)

NASA, Problem

Starters 97 Division 2 (Rated)

Make It Special, Schrodinger Smiley, No Palindrome, Triplets Min

Starters 98 Division 2 (Rated)

3-Blast Palindrome, Airport Management, Ball Distribution

Starters 99 Division 2 (Rated)

Segment Three, Two Piles, Card Swipe, Exclusion-Inclusion

Starters 103 Division 2 (Rated)

Unique xor, Divisible By 8, Dice Number

Starters 105 Division 2 (Rated)

Take it Easy, Spooky Sequences, Dull Operation, Wishcraft

Starters 106 Division 2 (Rated)

Playing with OR, Save People, Guess the winner!, Count Possibilities

Starters 107 Division 2 (Rated)

Rock Paper Scissor, OR Permutation

Starters 109 Division 2 (Rated)

Minimum XOR, Best of N Sets, Alter Ego, Chroma Swap

Starters 111 Division 2 (Rated)

LCM Mania, Prefixing, Beautiful Strings, Reach Codetown

Starters 112 Division 2 (Rated)

Cursed Indices, 3 Logicians Walk into a Bar, Permutation Construction, Max Nutrition

Starters 115 Division 2 (Rated)

Greedy LIS Algorithm, Binary Grid Forces, Make All Zero, A PLUS B Remastered, Decorating Christmas Tree

Starters 120 Division 2 (Rated)

Find Permutation , Construct Permutation, Count Subarrays, Sub or Swp

Starters 126 Division 2 (Rated)

Tree Distance Set, Freedom, Permutation Disturbance

Starters 130 Division 2 (Rated)

Make Equal, Alternating Binary String

Total Problems Solved: 174