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Programming and DSA

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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

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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.

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Practice Compete Compiler
Home » Redoy Kumar
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Redoy Kumar

Bronze League Bronze League
  • 2★redoy_cse50
  •   Bangladesh
  • Student
  • Bangabandhu Sheikh Mujibur Rahman Science and Technology University Gobra, Bangladesh
  • No Active Plan. View Details

Submissions Heat Map

Rating Graph

No. of Contests Participated: 66
1413 (+25)RatingProvisional
Rating i Provisional Rating, click to know more
Starters 213 (Rated)(2025-11-19 22:00:06)
Global Rank:   2087
Cheated in:   

Ratings System Update

(2025-11-19 22:00:06)
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1354 (+52)RatingProvisional
Rating i Provisional Rating, click to know more
Starters 69 Division 4 (Rated)(2022-12-20 00:00:00)
Global Rank:   9647
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 (1)

learn-icon

Learn JavaScript

23%

Practice Paths (0)

None

Contests (66)

January Cook-Off 2021 Division 3

Distinct Pair Sums, Password

January Lunchtime 2021 Division 3 (Unrated)

Ashishgup and Interviews, Pair Me, Even Differences, Even Sum

February Challenge 2021 Division 3

Chef and Meetings, Maximise Function, Highest Divisor

March Cook-Off 2021 Division 3

Pawri Meme, Weight Balance

February Lunchtime 2021 Division 3

Smallest Possible Whole Number

CodeChef Div 3 Rated Contest 2021 Division 3

Chef and Patients, Body Mass Index, Total Score

February CodeChef Starters 2021 Division 3 (Rated)

Maximum Value, Chef and Coupon

March Challenge 2021 Division 3

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

March Lunchtime 2021 Division 3

Motivation

April Challenge 2021 Division 3

Valid Pair, World Record, Strong Language

International Coding Marathon 2021 Division 3 (Rated)

Lucky Boundaries

April Cook-Off 2021 Division 3

Bodybuilder, Passing Marks, Chocolate Monger

April Lunchtime 2021 Division 3

Equinox Strings, Coldplay

SPYBITS IIT BHU Division 3 (Rated)

B - Valentine Couples, A - Save Water Save Life

April CodeChef Starters 2021 Division 3 (Rated)

Chef On Island, Hiring Test

May Cook-Off 2021 Division 3

Marathon

May Lunchtime 2021 Division 3

Birthday Gifts, Hoop Jump, Tom And Jerry 1

May Challenge 2021 Division 3 (Rated)

Xor Equality, Golf, Solubility

June Cook-Off 2021 Division 3

ICPC Balloons, Chefland Visa

June Lunchtime 2021 Division 3

False Number, HTML Tags, Richie Rich

June CodeChef Starters 2021 Division 3 (Rated)

Chess Match, Cyclic Quadrilateral

CodeChef Starters 7 Division 3 (Rated)

Chess Format

August Challenge 2021 Division 3 (Rated)

Problem Difficulties, Olympics Ranking

October Challenge 2021 Division 3 (Rated)

Which Mixture

November Challenge 2021 Division 3 (Rated)

Weird Palindrome Making, Equal Coins, Which Fuel is Cheaper

CodeChef Starters 17 Division 3 (Rated)

Chef on Vacation, New Piece

CodeChef Starters 19 Division 3 (Rated)

Chef and Contest, Sleepy Chef, Indivisible Permutation

CodeChef Starters 22 Division 3 (Rated)

An Interesting Sequence, Equal Card Game, Elections in Chefland

CodeChef Starters 24 Division 3 (Rated)

Avoid Contact, Badminton Serves

CodeChef Starters 26 Division 3 (Rated)

Count the Notebooks, Hostel Room

CodeChef Starters 27 Division 3 (Rated)

Distinct Binary Strings, Too many items, Blackjack, The product mystery

February Lunchtime 2022 Division 3

Good Program, Watching Movies at 2x

CodeChef Starters 30 Division 3 (Rated)

Chef and Water Bottles

July Cook-Off 2022 Division 4 (Rated)

Enough Space, Chef Drinks Tea, High Accuracy

June Long Two 2022 Division 3 (Rated)

Count the ACs, Complementary Strand in a DNA

Starters 68 Division 4 (Rated)

XOR Product, Expense List, Bull or Bear, Make AP, Make Money

Starters 69 Division 4 (Rated)

Rain in Chefland, Scalene Triangle

Starters 70 Division 4 (Rated)

Kitchen Timings, Spice Level, Cost of Groceries, Prime Reversal

Starters 73 Division 4 (Rated)

Chef Plays Ludo, Multivitamin Tablets, Lucky Numbers

February Cook-Off 2023 Division 4 (Rated)

Battery Health, Take Not Less, Bi_lindrome!, Permutation and Modulus, Netflix

Starters 77 Division 4 (Rated)

Tekken, Tom and Jerry Chase, Codechef Airlines

Starters 80 Division 4 (Rated)

Just One More Episode, Single-use Attack, Running Comparison, Equal Elements

Starters 82 Division 3 (Rated)

Reach Home, Difference Matrix, MIN To MAX

Starters 86 Division 4 (Rated)

Cricket Match, CodeChef Learn Problem Solving

Starters 90 Division 4 (Rated)

Learning SQL, Favourite Numbers

Starters 91 Division 4 (Rated)

Odd GCD Permutation, Chef Odd, Blobby Volley Scores, Bus Seat Numbering, Parking Charges

Starters 92 Division 4 (Rated)

Rectangular Tiling, Dotify Playlist, Water Filling, Oneful Pairs

Starters 93 Division 4 (Rated)

Break Free, Right There, 7 Rings, Problem

Starters 95 Division 3 (Rated)

Alt-Tab, Transfusion Chain

Starters 97 Division 3 (Rated)

Best of Two

Starters 101 Division 4 (Rated)

Off By One

Starters 102 Division 4 (Rated)

Sports Section, Selling Insurance, Chef and Stocks

Starters 103 Division 4 (Rated)

Sunday Brunch, October Marathon, Dice Number

Starters 104 Division 4 (Rated)

Pizza Cutting, Double Rent

Starters 105 Division 4 (Rated)

Bone Appetit, Dracula Eats

Starters 106 Division 4 (Rated)

Fan Poll

Starters 107 Division 4 (Rated)

Pending Assignments, Clear Day, OR Permutation

Starters 108 Division 4 (Rated)

Rivalry, Chess Pairing

Starters 109 Division 4 (Rated)

Minimum XOR, Cricket World Cup Qualifier, Best of N Sets, Worth of a Video

August Long 2023 Division 4 (Unrated)

All New CodeChef

Starters 113 Division 4 (Rated)

Make N Zero, Thala For A Reason

Starters 114 Division 4 (Rated)

Painting Walls, Christmas Greetings

Starters 115 Division 4 (Rated)

Chocolate Distribution, Codechef Round

Starters 118 Division 4 (Rated)

Literacy Rate, International Education Day!

Starters 208 (Rated)

Spring Cleaning, Sabotage, Alternate Jumps

Starters 210 (Rated)

Chocolate Eating, Profits, Notebook Counting, First Element Counting

Starters 213 (Rated)

Exun and the Pizzas, EXML Race, Separation, No 4 Please

Total Problems Solved: 263

1413
(Div 3)
★★
CodeChef Rating (Highest Rating 1481)
  • 41612 Global Rank
  • 1467 Country Rank

Skill tests

13%

C language skill test

Attempted on October 2025
View skill tests

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

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