Sohel Ahmed

• Username: 4★sohelcseiu
• Country:  Bangladesh
• Student/Professional:Student
• Institution:Islamic 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: 54

Current Ratings Graph Old Ratings Graph

1811 (-31)RatingProvisional
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November Challenge 2016(2016-11-14 15:00:00)

Global Rank:   2149

Cheated in:   

Ratings System Update

(2016-11-14 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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1811 (+80)RatingProvisional
Rating i Provisional Rating, click to know more

November Challenge 2016(2022-12-20 00:00:00)

Global Rank:   2149

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 (54)

December Cook-Off 2012

Packaging Cupcakes

February 2013 Challenge

Buy1-Get1

April Challenge 2013

Maximum Weight Difference

April Cook-Off 2013

Andrew and the Meatballs

May Challenge 2013

Name Reduction, Your Name is Mine

June Challenge 2013

Lapindromes

May Cook-off 2013

Subtraction Game 1

July Challenge 2013

Chef and Walking on the rectangle , Count K-Primes

July Cook-off 2013

Chopsticks

August Challenge 2013

Little Elephant and Lemonade, Hello Hello, Splitting Candies

September Challenge 2013

CAO Stage-1

October Challenge 2013

Helping Lira, Maxim and Dividers

December Challenge 2013

Magic Pairs

May Cook-Off 2014

Divide the Cake, Ups and Downs

July Cook-Off 2014

Copy-Paste, Sum Queries

September Cook-Off 2014, ACM-ICPC Warm up

Sherlock and the Grid, Subarray GCD

October Cook-Off 2014

The Army, Walk on the Axis

November Cook-Off 2014

Brackets

February Challenge 2014

Longest Common Pattern

May Challenge 2014

Compilers and Parsers, Chef-jumping, Stone

June Challenge 2014

Chef and Subarray, Guessing Game, Forgot Password

July Challenge 2014

Chef and Frogs, Chef and Rectangle Genome, Count Substrings, Reach The Point, Dish Owner

August Challenge 2014

The Leaking Robot, Chef and Gift

September Challenge 2014

Factorisation, Chef and Rainbow Array - 2, Chef and Left-Right, Chef and sequence, Fun with Rotation

October Challenge 2014

Remy paints the fence, Chef and Ground, Chef and Painting, Magical Girl and Colored Liquid Potions, DevuLand, Dinosaurs and Laddus

November Challenge 2014

Chef and Segment Game, Distinct Characters Subsequence, Chef and Red Black Tree, Let us construct palindrome

December Challenge 2014

Chef and Apple Trees

October Lunchtime 2014

Tanu and Head-bob, Cascading Style Sheets

January Challenge 2015

Chef and A Large Permutation, Chef and Stones, Sereja and Votes, One Dimensional Kingdoms, Gcd Queries

February Challenge 2015

Chef and Chain, Chef and Strange Formula, Chef and Strings, Let us play with rank list, Chef and Equality

March Challenge 2015

Chef and Notebooks

April Challenge 2015

Chef and Interview, Broken Telephone, Chef and Piano Scales

June Challenge 2015

Chef and Memory Limit, Chef and Polygons

July Challenge 2015

Bread, Na2a and lucky stone, Chef and Cube

September Challenge 2015

Chain of Doughnuts

December Challenge 2015

Chef and cinema, Chef and the stones, Plane Division, Oracle Devu and Longest Common Subsequence

February Cook-Off 2015

Fit Squares in Triangle

March Cook-Off 2015

How to Minimize a String

September Mega Cook-Off 2015

Forgotten Language, Stacks

December Lunchtime 2015

Distinct Codes

January Long Challenge 2016

Rupsa and the Game, Churu and Balls, Chef and Time Machine, Devu and Perfume

February Challenge 2016

Devu and a light discussion, Chef-Detective

April Challenge 2016

Help Watson Escape, Chef and Ballons, Chef And Magical Path, Chef And Coloring

June Challenge 2016

Chef And The Hiring Event, Chef and Rectangle Array, Chef and Array and K, Chef And Binary Operation, Chef and Coins Game, Devu and an Array

November Challenge 2016

Chef and squares, Task for Alexey

January Cook-Off 2016

Chef and Destruction, Chef and Fruits

February Cook-Off 2016

Puppy and Sum

March Cook-Off 2016

Digital clock, Dual Nim, Alternating subarray prefix

Total Problems Solved: 127