Maruf Ahmed Mridul

• Username: 4★dot_0
• 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: 13

Current Ratings Graph Old Ratings Graph

1982 (+35)RatingProvisional
Rating i Provisional Rating, click to know more

August Challenge 2020 Division 1(2020-08-17 15:00:00)

Global Rank:   110

Cheated in:   

Ratings System Update

(2020-08-17 15:00:00)

This is the difference due to changing the rating system.This graph is not updated after 20th Dec 2022. Know more

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1982 (-127)RatingProvisional
Rating i Provisional Rating, click to know more

August Challenge 2020 Division 1(2022-12-20 00:00:00)

Global Rank:   110

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)

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Contests (13)

August Long Challenge 2017

Chef and Rainbow Array

March Cook-Off 2017

Safe Robot

August Cook-Off 2017

Real obtuse, From heaven to earth

March Lunchtime 2017

Bear and Ladder

January Challenge 2018

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

May Cook-off 2018 Division 2

Secret Recipe

April Challenge 2018 Division 2

Weight of Numbers, Workers, Average of Pairs, Count Good Prefixes, Highway Crossing

May Lunchtime 2020 Division 2

Weird Walk, Lost Weekends

July Challenge 2020 Division 2

Chef and Strings, Chef and Card Game, Chefina and Swaps, (Challenge) Dynamic Hull, Doctor Chef, Chef and Dragon Dens, LCM Constraints, Ada King, Missing a Point

August Challenge 2020 Division 1

Insanely Hard School Exams, Subsequence Frequency Counting, Smallest KMP, Chef and Wedding Arrangements

July Cook-Off 2020 Division 1

OR-thodox Distinction, Even-tual Reduction

July Lunchtime 2020 Division 1

Golomb Sequence, Binary Concatenation

June Cook-Off 2020 Division 2

Cache Hits, Per Capita Income, Max Mex

Coders' Legacy (Rated for all)

Chef vs Doof, Doof on Cartesian, Doof fires Brackets

Total Problems Solved: 100