CodeChef Logo CodeChef Logo
Courses

Programming and DSA

Learn to think like a programmer. Develop your problem-solving skills with essential data structures and algorithms.

Career Paths

From beginner to job-ready. Explore our curated career paths designed to help you succeed in the tech industry.

Other Courses

Programming and DSA

Explore courses

Catalogue

Programming and DSA

Learn to think like a programmer. Develop your problem-solving skills with essential data structures and algorithms.

Career Paths

From beginner to job-ready. Explore our curated career paths designed to help you succeed in the tech industry.

Other Courses

Explore courses
Practice Compete Compiler
Upgrade to Pro
Courses

Programming and DSA

Learn to think like a programmer. Develop your problem-solving skills with essential data structures and algorithms.

Career Paths

From beginner to job-ready. Explore our curated career paths designed to help you succeed in the tech industry.

Other Courses

Programming and DSA

Explore courses

Catalogue

Programming and DSA

Learn to think like a programmer. Develop your problem-solving skills with essential data structures and algorithms.

Career Paths

From beginner to job-ready. Explore our curated career paths designed to help you succeed in the tech industry.

Other Courses

Explore courses
Practice Compete Compiler
Home » Ruhul Amin Choudhury
user profile

Ruhul Amin Choudhury

  • 1★ruhul1995
  •   India
  • Professional
  • Encora Technologies
  • No Active Plan. View Details

Submissions Heat Map

Rating Graph

No. of Contests Participated: 99
1342 (+13)RatingProvisional
Rating i Provisional Rating, click to know more
January Long 2023 Division 4 (Rated)(2023-01-16 15:00:06)
Global Rank:   2117
Cheated in:   

Ratings System Update

(2023-01-16 15:00:06)
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?
1329 (+95)RatingProvisional
Rating i Provisional Rating, click to know more
Starters 67 Division 4 (Rated)(2022-12-20 00:00:00)
Global Rank:   8787
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)

Practice Paths (1)

learn-icon

Practice for ZCO and INOI

0%

Contests (99)

May Challenge 2015

Chef and Prime Divisors, Set Difference , Chef and new recipe

June Challenge 2015

Chef and Memory Limit

July Challenge 2015

Bread, Chef and Cube

August Challenge 2015

Aditi and Magic Trick

October Challenge 2015

Time measure, Count Subarrays, Who dares to be a millionaire

November Challenge 2015

Eugene and function, Chef and cakes

May Cook-Off 2015

Devu and friendship testing

August Cook-Off 2015

Chef and the Wildcard Matching

September Mega Cook-Off 2015

Forgotten Language

April Lunchtime 2015

Tickets

March Challenge 2016

Palindromic substrings, maximize the sum

April Challenge 2016

Help Watson Escape, Chef and Ballons, Chef And Coloring

May Challenge 2016

Laddu

August Challenge 2016

Chef and Chocolate

September Challenge 2016

Chef and digits of a number, Faded Palindromes

October Challenge 2016

Chef and Keyboard, Chef and Three Dogs

December Challenge 2016

Train Partner

March Lunchtime 2016

Simple Statistics

March Challenge 2017

Xenny and Alternating Tasks, Bear and Extra Number

April Challenge 2017

Bear and Row 01, Similar Dishes

May Challenge 2017

Chef and his daily routine

June Challenge 2017

A Good Set

January Challenge 2018

Rectangle

February Challenge 2018

Chef And His Characters

March Challenge 2018 DIV 2

A Big Sale, Chef and Glove

June Challenge 2018 Division 2

Naive Chef

September Challenge 2018 Division 2

Magician versus Chef

December Challenge 2018 Division 2

Chef and Interactive Contests

October Challenge 2018 Division 2

Chef and Serves

August Challenge 2019 Division 2

Football

February Challenge 2020 Division 2

Hard Cash

May Lunchtime 2020 Division 2

Lost Weekends

July Challenge 2020 Division 2

Chef and Strings

August Challenge 2020 Division 2

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

October Challenge 2020 Division 2

Covid Run, Chef and Easy Queries

December Challenge 2020 Division 2

Even Pair Sum, Vaccine Production, Vaccine Distribution

February Challenge 2021 Division 3

Highest Divisor

March Challenge 2021 Division 3

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

April Challenge 2021 Division 3

Valid Pair, World Record, Strong Language

November Challenge 2021 Division 3 (Rated)

Weird Palindrome Making, Equal Coins, Which Fuel is Cheaper

December Challenge 2021 Division 3 (Rated)

List of Lists, Utkarsh and Placement tests

CodeChef Starters 21 Division 3 (Rated)

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

January Long 2022 - II, Division 3 (Rated)

Crying Colours, TCS Examination, Chef and Fixed Deposits

January Cook-Off 2022 Division 3

Palindromes Not Allowed, Mask Policy, Hungry Ashish

January Lunchtime 2022 Division 3

Chef and Subset Additions, Chef and Lockout Draws

CodeChef Starters 24 Division 3 (Rated)

Avoid Contact, Badminton Serves

February Long 2022 - I, Division 3 (Rated)

Binary Base Basics, N Queens Puzzle Solved !, Chef and the Hair Salon

CodeChef Starters 25 Division 3 (Rated)

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

February Long 2022 - II, Division 3 (Rated)

Avoid Fixed Points, World Chess Championship, Chef and NextGen, Xor Palindrome

CodeChef Starters 26 Division 3 (Rated)

Count the Notebooks

CodeChef Starters 27 Division 4 (Rated)

Distinct Binary Strings, Get Lowest Free, Too many items, Shopping Change, Blackjack, The product mystery

February Cook-Off 2022 Division 4

Complete the credits, Guess the bottom face, Lazy Salesman, Peaceful Party

February Lunchtime 2022 Division 4

Good Program, Battery Low, Watching Movies at 2x, Chessboard Distance

CodeChef Starters 28 Division 4 (Rated)

Chef and Instant Noodles, Self Defence Training, Car Choice, Qualify the round

March Long One 2022, Division 4 (Rated)

Akash and Function, Akash and Missing Class, Exact Marks, Discus Throw, Bath in Winters, Wordle

CodeChef Starters 29 Division 4 (Rated)

Fill the Bucket, Tyre problem

March Long Two 2022, Division 4 (Rated)

Chef and Races, Increase IQ, The Three Topics, The Rating Dilemma

CodeChef Starters 31 Division 4 (Rated)

Alternating String, Sign Moves, Cup Finals, Group Assignment, Economics Class

March Lunchtime 2022 Division 4

Credit score, Minimum number of coins, Buy 2 Get 1 Free, CRED Coins

April Cook-Off 2022 Division 4

Email Reminders

April Long One 2022, Division 4 (Rated)

Dazzling GCD Pair, Dazzling AXNODR Challenge , Ezio and Guards, The Cooler Dilemma 1, The Cooler Dilemma 2, Pairwise Xors

Starters 35 Division 4 (Rated)

Dark Light, Water Requirement, Police and Thief, Jenga Night

April Long Two 2022 Division 4 (Rated)

Geometric Mean Inequality, Sasta Shark Tank, Six Friends, Best Coupon, Pseudo Sorted Array

May Cook-Off 2022 Division 4 (Rated)

Chef and Gym, Chef and Masks, Farmers League, Game of Pooks

May Long One 2022 Division 4 (Rated)

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

May Lunchtime 2022 Division 4 (Rated)

Bucket and Water Flow , Apples and Oranges, How many unattempted problems, Problems in your to-do list

Starters 39 Division 4 (Rated)

Compress the Video, Recent contest problems, My very 1st contest!, A or B, Chess Ratings

May Long Two 2022 Division 4 (Rated)

Practice makes us perfect, Xor Palindrome, Score High, Total Prize Money, Degree of Polynomial

June Long One 2022 Division 4 (Rated)

Chairs Requirement, Subscriptions

Starters 44 Division 4 (Rated)

Biryani classes, Air Hockey

Starters 43 Division 4 (Rated)

Burgers, DNA Storage, Distinct Palindrome, Joining Date, Waiting Time

June Lunchtime 2022 Division 4 (Rated)

It is My Serve, Too many Floors, Determine the Score

Starters 47 Division 4 (Rated)

Chef On Date, Minimum Coins, Chess Time

Starters 50 Division 4 (Rated)

Discount, Mileage matters, Nearest Court

August Long 2022 Division 4 (Rated)

Sale Season, Maximum Submissions, Make A and B equal

September Long 2022 Division 4 (Rated)

Speed Limit Test, Bob at the Bank, Chef and Wire Frames, Good Pairs

October Long 2022 Division 4 (Rated)

Podium Finish, Minimum Pizzas, Building Race, Single Operation Part 1, Single Operation Part 2

Starters 67 Division 4 (Rated)

Minimum Number of Ones, Tour of King

January Long 2023 Division 4 (Rated)

Asymmetric Swaps, Far from origin, Overspeeding Fine, Negative Product

Total Problems Solved: 357

1342
(Div 4)
★
CodeChef Rating (Highest Rating 1457)
  • Inactive Global Rank
  • Inactive Country Rank

Badges

Contest Contender - Gold Badge

Contest Contender - Gold Badge

Received for participating in 50 Contests

Problem Solver - Silver Badge

Problem Solver - Silver Badge

Received for solving 250 Problems

Daily Streak - Bronze Badge

Daily Streak - Bronze Badge

Received for maintaining a streak of 5 days

Recent Activity

Fetching recent activity

Workden, MNR PRIDE, 14, HAL Old Airport Rd, Domlur I Stage, 1st Stage, DOMLUR, Bengaluru, Karnataka 560071 help@codechef.com +91 95911 47880
Find us online

ROADMAPS

Learn Python
Learn Java
Learn C
Learn C++
Data structures and Algorithms
Competitive Programming
More Roadmaps

CAREER PATHS

React JS Developer
Full stack Developer
SQL for Data Analysis
Frontend Developer
Java Backend Developer
Data Analysis using Python
Python Backend Developer
C++ Developer
Machine Learning using Python

COMPILERS

HTML online compiler
C++ online compiler
C online compiler
Java online compiler
Python online compiler
SQL online compiler
JavaScript online compiler
React online compiler
More compilers

COMPANY

About us
For colleges
Coding Contests
Blogs
Contact us
Privacy Policy
Frequently Asked Questions

© 2026 CodeChef Inc. All rights reserved.

We use cookies to improve your experience and for analytical purposes. Read our Privacy Policy and Terms to know more. You consent to our cookies if you continue to use our website.