mobasshir ahmad

• Username: 4★blackstone1
• Country:  Bangladesh
• Student/Professional:Professional
• Organisation:Dhaka
• 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: 25

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Coders' Legacy (Rated for all)(2020-07-16 00:15:00)

Global Rank:   566

Cheated in:   

Ratings System Update

(2020-07-16 00:15:00)

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1857 (-36)RatingProvisional
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Coders' Legacy (Rated for all)(2022-12-20 00:00:00)

Global Rank:   566

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 (25)

Encoder (Rated for Division 2)

Knight Chess

February Cook-Off 2019 Division 2

Buying New Tablet, Chef and Party

February Lunchtime 2019 Division 2

Average Number, The Tricky Deal

March Challenge 2019 Division 2

Chef got Recipes, Chef and Number Game, Yet Again a Subarray Problem, Chef and a Beautiful Digit, (Challenge) Interleaving Strings

March Cook-Off 2019 Division 2

UEFA Champions League

March Lunchtime 2019 Division 2

Testing Robot, Pogo Stick Competition

April Cook-Off 2019 Division 2

Chef Learning Hungarian Algorithm, Making a Meal, Pied Piper vs Hooli

April Lunchtime 2019 Division 2

Attendance, Fast Food, Minimum Sum

May Cook-Off 2019 Division 2

Chain Reaction, Recover the Sequence

May Lunchtime 2019 Division 2 (Unrated)

Dummy Palindromic Strings, CV

June Cook-Off 2019 Division 2

Multiple Choice Exam, Ants and Anteaters, Eat Twice

June Lunchtime 2019 Division 2

Ping Paja Pong, Magda and Silly Pairs

July Cook-Off 2019 Division 2

Two Variables, Birthday Gift Again, Playing with Strings

September Lunchtime 2019 Division 1

All Substrings, Find the Sum

October Mega Cook-Off 2019 Division 1

D-Or

November Lunchtime 2019 Division 2

Compress the List

International Coding League 2019 (Rated for Division 2)

FlatLand

Alkhwarizm (Rated for all)

Danny Wants To Know

May Cook-Off 2020 Division 2

Chef and Recipe, Chef, Chefina and Their Friendship

February Lunchtime 2020 Division 2

At the Gates, Not All Flavours

Exun Programming Prelims 2019 (Rated for all)

Weird Modulo Problem , Tennis Tournament

International Coding Marathon (Rated for all)

Mr Pr in a Dilemma

UWCOI 2020 (Rated for all)

Find maximum in an Array, Base Plans, Button Pairs

June Cook-Off 2020 Division 2

Cache Hits, Per Capita Income, Max Mex

RECode 12.0 (Rated for all)

Chef and String, Chef and Numbers

January Lunchtime 2021 Division 2 (Unrated)

Binary Subsequence, Even Differences, Even Sum

Coders' Legacy (Rated for all)

Chef vs Doof, Doof on Cartesian, Doof fires Brackets

Code Ensemble (Rated for Division 2)

Cherry and Bits, Priya and AND, Help Martha

Total Problems Solved: 99