Md. Istiak

• Username: 4★istiak_a2i
• Country:  Bangladesh
• Student/Professional:Student
• Institution:Shahjalal University of Science & Technology Sylhet, 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

1916 (+33)RatingProvisional
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Starters 185 (Rated)(2025-05-07 22:00:02)

Global Rank:   96

Cheated in:   

Ratings System Update

(2025-05-07 22:00:02)

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1896 (-56)RatingProvisional
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Starters 47 Division 2 (Rated)(2022-12-20 00:00:00)

Global Rank:   225

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 (16)

September Cook-Off 2021 Division 3

Zebra Crossing, Fake Swaps, Fake GCD, Adjacency Hatred, Cars and Bikes

CodeChef Starters 12 Division 3 (Rated)

K - balanced string, Good Weather, Make it Divisible, Maximum Points

September Lunchtime 2021 Division 2

Balanced and Unique Arrays, Alice vs Bob Faceoff, Yet another SOD problem

C.O.D.E.R.S Division 2 (Rated)

The One with Ross Wedding, The One with All the Candy, The One On The Last Night

July Cook-Off 2022 Division 2 (Rated)

Permutation And Median, Xor Permutation, Segmentation Fault

Starters 45 Division 2 (Rated)

Even Equal Odd, Xor and Multiply, KBG and GN-Theory, Retrieve the Array, Adjacent Sum Parity

Starters 46 Division 2 (Rated)

Prime Xor, Vowel Anxiety, Array sorting, Sort the String

Starters 47 Division 2 (Rated)

Copy and Push Back, End Sorted, Similar Heights

Starters 100 Division 2 (Rated)

Stamps 100

September Short 2023 Division 2 (Unrated)

GCD Discount, Ultimate Fencing, Lucky Seven, Slow Start, Mixing Extraordinaire

Starters 139 Division 2 (Rated)

Sum of N, Maximum Distance Permutations, Destroying Bridges Part 2

Starters 142 Division 2 (Rated)

Number Hunt, Array Removal, Chef loves Pizza Chef loves halfs

Starters 143 Division 2 (Rated)

Non-Divisor Array

Starters 177 (Rated)

Flip or Reverse, Ordered Distances, 2 Boxes

Starters 178 (Rated)

Smoothly Increasing , Big Difference, Minimum Colours (Easy), Placing 01 And 10

Starters 185 (Rated)

GCD Summation, Asymmetric Cookies, Creature Hunter, Array Deletion Game

Total Problems Solved: 66