Rabbani Islam Refat

• Username: 5★cloud_
• 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: 27

Current Ratings Graph Old Ratings Graph

2033 (+47)RatingProvisional
Rating i Provisional Rating, click to know more

Starters 144 Division 2 (Rated)(2024-07-24 22:00:02)

Global Rank:   63

Cheated in:   

Ratings System Update

(2024-07-24 22:00:02)

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?

1878 (-18)RatingProvisional
Rating i Provisional Rating, click to know more

Starters 64 Division 2 (Rated)(2022-12-20 00:00:00)

Global Rank:   74

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 (27)

August Challenge 2020 Division 2

Another Card Game Problem, Chef and Linear Chess, Smallest KMP, Chef Wars - Return of the Jedi

October Challenge 2020 Division 2

Positive AND, Covid Run, Chef and Easy Queries

January Challenge 2021 Division 3

Watching CPL, Fair Elections, Chef and Division 3, Point Of Impact, Encoded String

March Challenge 2021 Division 3

Chef and Groups, No Time to Wait, Space Arrays, Interesting XOR!

SnackDown 2021 - Online Qualifiers

Lucky Number, Maximum Number Of Distinct Elements

SnackDown 2021 - Online Round 1A

Round Robin Ranks , Dance Moves, Min Max LCM

SnackDown 2021 - Online Round 1B

Queens Placement , Largest Laddu, Help Nishant

February Cook-Off 2022 Division 3

PerMEXuation , Prefix Permutation, Peaceful Party, Lazy Salesman, Perfect Permutation

CodeChef Starters 27 Division 2 (Rated)

Distinct Binary Strings, Non Coprime Neighbours, The product mystery, String Reverse

February Lunchtime 2022 Division 2

Four Equidistant Points on a Grid, Parallel Processing, Magnet Sort

CodeChef Starters 28 Division 2 (Rated)

Travelling in the Graph, Permutation Xority, Count the Holidays

CodeChef Starters 30 Division 2 (Rated)

Minimum Coloring, Balanced Reversals, Gift Shop and Coupon

June Lunchtime 2022 Division 2 (Rated)

Zero Ones Equal One Zeros, Max Shift After XOR, Equal by XORing

Starters 51 Division 2 (Rated)

Adjacent Xors, Split N, Copy and Paste, Different Medians

Starters 61 Division 2 (Rated)

Subarray Removal, Minimise LCS, Red Blue Flowers

Starters 62 Division 2 (Rated)

Sorted Substrings, Pythagorean Pair, Make Multiple, Final Sum

Starters 64 Division 2 (Rated)

Luigi and Uniformity, Range Assign, Number of Distinct Elements Minimize, Prime Factor Division, Distinct Neighbours

February Cook-Off 2023 Division 2 (Rated)

Take Not Less, Permutation and Modulus

Starters 91 Division 2 (Rated)

Chef Odd, Maximum Sum Permutation, Blobby Volley Scores, Odd GCD Permutation, XOR & Sum

Starters 94 Division 2 (Rated)

CodeChef Streak, Possible or Not, Search for 404, The Vowel Matrix

Starters 95 Division 2 (Rated)

Boxes, Transfusion Chain, EVacuate to Moon

Starters 114 Division 2 (Rated)

Rock-Paper-Scissors, Christmas Candy

Starters 131 Division 2 (Rated)

K-Closeness, Digit Space, Dice Deception, Encrypt Value, T-Perm

Starters 132 Division 2 (Rated)

ALIEN-OR, Optimal Flip, MEX QUERIES , Prime Query, GAME 11

Starters 133 Division 1 (Rated till 6-Star)

Powered Parameters

Starters 134 Division 2 (Rated)

Origin, Prison Escape, Rock Paper Scissors, 3out1in

Starters 136 Division 1 ( Rated till 6-Stars )

Sum of Modes

Starters 142 Division 2 (Rated)

Chef loves Pizza Chef loves halfs, Array Removal, Number Hunt

Starters 144 Division 2 (Rated)

Minimise Inversions, Budget Allotment, Largest K

Total Problems Solved: 113