Rejaul Karim Ridhon

• Username: 2★hridhon
• Country:  Bangladesh
• Student/Professional:Student
• Institution:Bangladesh University of Business and Technology Dhaka, Bangladesh
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

Last 6 Months 2025 (Jan-Jun)2024 (Jul-Dec)2024 (Jan-Jun)

Rating Graph

No. of Contests Participated: 30

Current Ratings Graph Old Ratings Graph

1476 (+43)RatingProvisional
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Starters 65 Division 4 (Rated)(2022-11-16 23:00:06)

Global Rank:   627

Cheated in:   

Ratings System Update

(2022-11-16 23:00:06)

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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1476 (+129)RatingProvisional
Rating i Provisional Rating, click to know more

Starters 65 Division 4 (Rated)(2022-12-20 00:00:00)

Global Rank:   627

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 (30)

March Challenge 2021 Division 3

No Time to Wait, Chef and Groups

June Challenge 2021 Division 3 (Rated)

Summer Heat

August Challenge 2021 Division 3 (Rated)

Olympics Ranking

CodeChef Starters 8 Division 3 (Rated)

Penalty Shots, Javelin Qualification

September Cook-Off 2021 Division 3

Cars and Bikes, Fake GCD

CodeChef Starters 12 Division 3 (Rated)

Good Weather, Make it Divisible

CodeChef Starters 13 Division 3 (Rated)

Magical Doors, The Preparations, Chef in Vaccination Queue

CodeChef Starters 14 Division 3 (Rated)

Diagonal movement, RCB and Playoffs

October Challenge 2021 Division 3 (Rated)

Three Boxes, Which Mixture

CodeChef Starters 16 Division 3 (Rated)

Professor And Directions, Chef And Salary Pay, Pass or Fail

December Cook-Off 2021 Division 3

Two Rooks, Friends Meetup

CodeChef Starters 21 Division 3 (Rated)

Devendra and Water Sports, Akash and Grid, Covid and Theatre Tickets

CodeChef Starters 22 Division 3 (Rated)

Equal Card Game, Elections in Chefland

January Long 2022 - I, Division 3 (Rated)

Covid Spread, Prime in a binary string, Keplers Law

Exun 2021-22 Division 3 (Rated)

Sarthak and his Magic Grid

CodeChef Starters 23 Division 3 (Rated)

Average of Three, Chef and Profits

CodeChef Starters 24 Division 3 (Rated)

Avoid Contact, Badminton Serves, Yet Another Constructive Problem, EVM Hacking

CodeChef Starters 25 Division 3 (Rated)

Chef and His Fruit Stand, Points and Lines, Fit in Data Type

CodeChef Starters 26 Division 3 (Rated)

Careless Chef, Count the Notebooks, Hostel Room, Control the Pollution

CodeChef Starters 28 Division 3 (Rated)

Permutation Xority, Self Defence Training, Car Choice, Count the Holidays

CodeChef Starters 29 Division 3 (Rated)

Plusle and Minun on Array, Bomb the base, String protocol

April Lunchtime 2022 Division 3(Rated)

Mario and Bullet, Palindrome Pain

Starters 36 Division 3 (Rated)

Chef and Bird farm

April Long Two 2022 Division 3 (Rated)

Sasta Shark Tank, Best Coupon, Pseudo Sorted Array

May Long One 2022 Division 4 (Rated)

Pushpa , Miami GP, Football Cup, Sugarcane Juice Business, Mystical Numbers, The Attack of Queen

May Lunchtime 2022 Division 3 (Rated)

Bucket and Water Flow , Problems in your to-do list

June Cook-Off 2022 Division 4 (Rated)

Rating Improvement, Playlist, First and Last

Starters 42 Division 4 (Rated)

Equal Distribution, Minimum number of Flips, Age Limit

Starters 63 Division 4 (Rated)

One-XOR Deletions, Packing Books, Tasty Decisions, Avoid Squares Please

Starters 65 Division 4 (Rated)

Nahaane Jaa, Parity, Candies, Hackerman

Total Problems Solved: 102