Shahidul Islam

• Username: 4★shahidul1004
• 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 2026 (Jan-Jun)2025 (Jul-Dec)2025 (Jan-Jun)

Rating Graph

No. of Contests Participated: 25

Current Ratings Graph Old Ratings Graph

1847 (-7)RatingProvisional
Rating i Provisional Rating, click to know more

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

Global Rank:   546

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?

1847 (-87)RatingProvisional
Rating i Provisional Rating, click to know more

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

Global Rank:   546

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)

None

Practice Paths (0)

None

Contests (25)

September Challenge 2018 Division 2

Chef and Adventures, Magician versus Chef

February Challenge 2019 Division 2

Appy and Contest, Deputy Chef, Chef and Secret Ingredients

March Challenge 2019 Division 2

Chef got Recipes, Chef and Number Game, Chef and a Beautiful Digit

March Lunchtime 2019 Division 2

Corrupted Seven-Segment Display, Testing Robot, Pogo Stick Competition

April Challenge 2019 Division 2

Maximum Remaining, Fencing, Subtree Removal, Friend or Girlfriend, Playing with Numbers, Kira Loves Palindromes

April Cook-Off 2019 Division 1

Random Game, Pied Piper vs Hooli

April Lunchtime 2019 Division 1

Firdavs and Planet F, Minimum Sum

May Challenge 2019 Division 1

Where to Build the Roads

May Cook-Off 2019 Division 1

Misha and Nice Sets

May Lunchtime 2019 Division 1 (Unrated)

Grid Tour, Reverse Maximisation, Abdullah and Toll Discounts

July Cook-Off 2019 Division 1

Birthday Gift Again

August Challenge 2019 Division 1

Dilemma, Guddu and his Mother

August Cook-Off 2019 Division 1

Rich Substrings, Two Circles

September Challenge 2019 Division 1

Chef Designed a Network

September Mega Cook-Off 2019 Division 2

Two Groups, Playing with Matches

October Challenge 2019 Division 1

Even Edges, Missing Number, Chef and Maximum Star Value, Array Modification

October Lunchtime 2019 Division 1 (Unrated)

Box Game

November Lunchtime 2019 Division 1

Washing Windows, Planting Trees

December Challenge 2019 Division 1

Chefina and Ranges, Binary XOR, Sticky Notes, Addition

January Challenge 2020 Division 1

Chef and Dynamo

February Cook-Off 2020 Division 1

XOR Game

January Lunchtime 2020 Division 2

Bob and His Friends, Chef and Street Food, Under the Tunnels

February Lunchtime 2020 Division 1

Swapping to Palindrome

July Cook-Off 2020 Division 1

Even-tual Reduction, OR-thodox Distinction

Total Problems Solved: 83