Md Shafiul Islam

• Username: 4★shaft
• Country:  Bangladesh
• Student/Professional:Professional
• Organisation:CodeMarshal IT Systems Ltd
• 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: 30

Current Ratings Graph Old Ratings Graph

1938 (-1)RatingProvisional
Rating i Provisional Rating, click to know more

July Cook-Off 2020 Division 1(2020-07-20 00:00:00)

Global Rank:   394

Cheated in:   

Ratings System Update

(2020-07-20 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?

1938 (-54)RatingProvisional
Rating i Provisional Rating, click to know more

July Cook-Off 2020 Division 1(2022-12-20 00:00:00)

Global Rank:   394

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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Practice Paths (0)

None

Contests (30)

June Challenge 2016

Chef and Coins Game, Chef And Binary Operation, Devu and an Array

September Challenge 2016

Chef and digits of a number, Chef and calculation, Faded Palindromes

June Cook-Off 2016

Sticks

September Cook-Off 2016

Lazy Jem

August Lunchtime 2016

Studying Alphabet

September Lunchtime 2016

Chef and Inequality

January Challenge 2017

Capital Movement, Cats and Dogs, Reservior

February Challenge 2017

Eugene and big number, Chef and His Apartment Dues, Chef and Triangles

May Challenge 2017

Chef and his daily routine, Courses in an university, Median of adjacent maximum numbers

June Challenge 2017

Pairwise union of sets, Triplets, Chef and the Feast, A Good Set, Chef and Prime Queries, Xenny and Coin Rankings

July Challenge 2017

Chef and Sign Sequences, Whats in the Name, Calculator , IPC Trainers

August Long Challenge 2017

Palindromic Game, Greedy Candidates, Chef and Mover, Chef and Rainbow Array

December Challenge 2017

Chef and Universe, Total Diamonds, Chef And his Cake, Chef And Easy Xor Queries, Penalty Shoot-out, Chef and Hamming Distance of arrays

May Cook-Off 2017

La Liga, Balanced Array

December Cook-Off 2017

Beautiful Array, Football Match

April Lunchtime 2017

Bear and Segment 01

May Lunchtime 2017

Prefix Inversions

July Lunchtime 2017

Find the Maximum Value

August Lunchtime 2017

Mathison and pangrams

November Lunchtime 2017

Smart Strategy

IOPC 2017 (Rated)

The Birthday Tears, Max Out

January Challenge 2018

K-Concatenation, Partition the numbers, String Merging, Rectangle, Maximum Score

February Challenge 2018

Chef And His Characters, Chef And The Patents, Car-pal Tunnel, Permutation and Palindrome

October Challenge 2018 Division 1

Appy and Balloons , Chef and Surprise Chessboard, Minimize Digitsum

August Lunchtime 2018 Division 1

Chef and Eid, Mix Mix Game

LoC April 2018 (Rated for Division 2)

Cricket Score

July Challenge 2020 Division 1

Doctor Chef, Missing a Point, Chef and Dragon Dens, Chefina and Swaps, LCM Constraints

July Cook-Off 2020 Division 1

Even-tual Reduction, OR-thodox Distinction

June Cook-Off 2020 Division 1

Per Capita Income

June Lunchtime 2020 Division 1

Maximum AND, Gold Mining

Coders' Legacy (Rated for all)

Chef vs Doof, Doof on Cartesian, Doof fires Brackets

Total Problems Solved: 111