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

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 » Rishabh Kumar
user profile

Rishabh Kumar

  • 3★rishabhk965
  •   India
  • Student
  • Indian Institute of Information Technology, Ranchi Jharkhand, India
  • No Active Plan. View Details

Submissions Heat Map

Rating Graph

No. of Contests Participated: 48
1626 (+39)RatingProvisional
Rating i Provisional Rating, click to know more
October Challenge 2020 Division 1(2020-10-12 15:00:00)
Global Rank:   510
Cheated in:   

Ratings System Update

(2020-10-12 15:00:00)
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?
1626 (-241)RatingProvisional
Rating i Provisional Rating, click to know more
October Challenge 2020 Division 1(2022-12-20 00:00:00)
Global Rank:   510
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

5%

Contests (48)

September Mega Cook-Off 2018 Division 2

ATM Machine

October Mega Cook-Off 2018 Division 2

Ada and the Staircase

November Cook-Off 2018 Division 2

Truth and Dare

December Cook-Off 2018 Division 2

Camp Or Not

September Challenge 2018 Division 2

Magician versus Chef, Chef and Adventures

December Challenge 2018 Division 2

Max and Electrical Panel, Chef and Interactive Contests, Chef and An Ideal Problem

November Challenge 2018 Division 2

Chef and Ridges, Chef and Difficult Contests

October Challenge 2018 Division 2

Chef and Serves, Byte to Bit

September Lunchtime 2018 Division 2

Judging Delay

November Lunchtime 2018 Division 2

Event

October Lunchtime 2018 Division 2

Three Friends, Coloring the Grid

December Lunchtime 2018 Division 2

Print Pattern, Age Calculator

January Challenge 2019 Division 2

Different Neighbours, Lucky Number Game, Distinct Pairs, Chef and Modulo Game, Fancy Quotes

January Cook-Off 2019 Division 2

Ada School, Ada King

January Lunchtime 2019 Division 2

Rooks, The Nights Watch

February Challenge 2019 Division 2

Manhattan Rectangle, Chef and Magical Jars, Chef and Secret Ingredients, Appy and Contest, Art of Balance, Deputy Chef

February Cook-Off 2019 Division 2

Buying New Tablet, Chef and Party

February Lunchtime 2019 Division 2

Average Number, The Tricky Deal

March Challenge 2019 Division 1

Chef and Number Game, Chef and a Beautiful Digit

March Cook-Off 2019 Division 2

UEFA Champions League

March Lunchtime 2019 Division 2

Testing Robot, Pogo Stick Competition

April Challenge 2019 Division 2

Friend or Girlfriend, Maximum Remaining, Fencing

April Cook-Off 2019 Division 2

Making a Meal, Chef Learning Hungarian Algorithm

April Lunchtime 2019 Division 2

Attendance, Fast Food

May Challenge 2019 Division 2

Matches, Reduce to One, Where to Build the Roads

May Cook-Off 2019 Division 2

Chain Reaction, Recover the Sequence

May Lunchtime 2019 Division 2 (Unrated)

Dummy Palindromic Strings, CV

June Challenge 2019 Division 2

Road Signs, Chef and Proxy, Guddu on a Date, Chef and Ingredients

June Cook-Off 2019 Division 2

Multiple Choice Exam, Eat Twice

June Lunchtime 2019 Division 2

Ping Paja Pong, Magda and Silly Pairs

July Challenge 2019 Division 2

Guess the Prime!, Parity Again, Minimum and Maximum, Chef and Mean

July Cook-Off 2019 Division 2

Birthday Gift Again, Playing with Strings, Two Variables

July Lunchtime 2019 Division 1 (Unrated)

Easy Math

August Challenge 2019 Division 1

Dilemma, Football, Distribute Apples, Zombie and the Caves

August Cook-Off 2019 Division 1

Rich Substrings

September Challenge 2019 Division 1

Chef Designed a Network

September Mega Cook-Off 2019 Division 1

Playing with Matches

September Lunchtime 2019 Division 1

Find the Sum

November Challenge 2019 Division 1

A Simple Game

December Lunchtime 2019 Division 2

The Evil Professor, Stupid Machine, Check Algorithm

February Challenge 2020 Division 2

No Change Required, The Theatre Problem, School of Geometry, Hard Cash, (Challenge) Raisins, Long Contest and Cook Off Overlaps

January Lunchtime 2020 Division 2

Bob and His Friends, Chef and Street Food

February Lunchtime 2020 Division 2

At the Gates, Not All Flavours

Biteration #2 (Rated for Division 2)

A - Books, C - Chef and Maths

August Challenge 2020 Division 2

Subsequence Frequency Counting, Chef Wars - Return of the Jedi, Another Card Game Problem, Chef and Linear Chess, Smallest KMP, Chef and Wedding Arrangements

July Cook-Off 2020 Division 2

Even-tual Reduction

July Lunchtime 2020 Division 2

Chef and Steps

October Challenge 2020 Division 1

Positive AND, Replace for X

Total Problems Solved: 249

Contributions

Problems Authored (10)
Contest Problem
OTHERS CHFLOL
QBRCKTS
WRLDSTR
MOBGAME
CHFLOL2
CHFFACT
ROSELOVE
BRKUP
BRUH
AGMSTR
Problems Tested (0)

No Contribution

Editorials Contributed (0)

No Contribution

1626
(Div 2)
★★★
CodeChef Rating (Highest Rating 1837)
  • Inactive Global Rank
  • Inactive Country Rank

Badges

Contest Contender - Silver Badge

Contest Contender - Silver Badge

Received for participating in 25 Contests

Problem Solver - Bronze Badge

Problem Solver - Bronze Badge

Received for solving 50 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.