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 » Raj Singh
user profile

Raj Singh

  • 4★raj1307
  •   India
  • Student
  • Jalpaiguri Government Engineering College West Bengal, India
  • No Active Plan. View Details

Submissions Heat Map

Rating Graph

No. of Contests Participated: 44
1996 (+0)RatingProvisional
Rating i Provisional Rating, click to know more
May Lunchtime 2022 Division 1 (Rated)(2022-05-15 23:00:00)
Global Rank:   144
Cheated in:   

Ratings System Update

(2022-05-15 23:00:00)
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?
1996 (-114)RatingProvisional
Rating i Provisional Rating, click to know more
May Lunchtime 2022 Division 1 (Rated)(2022-12-20 00:00:00)
Global Rank:   144
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

1%

Contests (44)

October Mega Cook-Off 2018 Division 2

Ada and the Staircase

November Cook-Off 2018 Division 2

Truth and Dare

September Challenge 2018 Division 2

Magician versus Chef

November Challenge 2018 Division 2

Chef and Ridges, Appy Loves One, Chef and Difficult Contests, Chef and Happiness

October Challenge 2018 Division 2

Chef and Serves, Byte to Bit, Chef and Circles

October Lunchtime 2018 Division 2

Three Friends

Encoder (Rated for Division 2)

Knight Chess

December Lunchtime 2018 Division 2

Print Pattern

January Challenge 2019 Division 2

Yet Another Problem About Sequences, Different Neighbours, Lucky Number Game, Distinct Pairs, Chef and Modulo Game, Fancy Quotes, A Pizza Slice

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, Guess It Right, 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

March Challenge 2019 Division 2

Chef got Recipes, Chef and Number Game, Yet Again a Subarray Problem, Chef and a Beautiful Digit, (Challenge) Interleaving Strings

March Cook-Off 2019 Division 2

UEFA Champions League

March Lunchtime 2019 Division 2

Testing Robot, Pogo Stick Competition

Coders' Legacy 2019 (Rated for all)

IPL and RCB

June Challenge 2019 Division 1

Road Signs

September Challenge 2019 Division 1

Fuzzy Linear Combinations

November Lunchtime 2019 Division 1

Pizza or Broccoli

International Coding League 2019 (Rated for Division 2)

FlatLand, Too Many Candies

January Challenge 2020 Division 1

Chef and Dynamo, Doraemon

February Challenge 2020 Division 1

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

April Cook-Off 2020 Division 2

Matrix Decomposition, Lift Requests, Simple Operations

January Lunchtime 2020 Division 2

Bob and His Friends, Chef and Street Food, Under the Tunnels

April Lunchtime 2020 Division 1

Positive Mex

Biteration #2 (Rated for Division 2)

C - Chef and Maths

International Coding Marathon (Rated for all)

Lavanya Loves DFA, Mr Pr in a Dilemma

September Challenge 2020 Division 1

Chefina and Swap, Chef and Trump Cards, Find XOR, Ada Matrix

August Cook-Off 2020 Division 1

Red-blue Trees, Polygon Relationship

August Lunchtime 2020 Division 1

Game on a Strip, Alien Invasion

June Cook-Off 2020 Division 2

Cache Hits, Per Capita Income, Max Mex

June Lunchtime 2020 Division 1

Maximum AND, Gold Mining

RECode 12.0 (Rated for all)

Chef and String, Chef and Rotation, Chef and Numbers

December Lunchtime 2020 Division 1 (Unrated)

Three Letters, One Zero Swaps

January Lunchtime 2021 Division 1 (Unrated)

Even Sum

October Lunchtime 2020 Division 2

AND Plus OR, Chef and Subtree MEXs, Chef Likes Good Sequences, Chef Is Just Throwing Random Words, Cute Chef Gift

November Lunchtime 2020 Division 1

Gasoline

Coders' Legacy (Rated for all)

Chef vs Doof, Doof on Cartesian

SnackDown 2021 - Online Qualifiers

Lucky Number

October Lunchtime 2021 Division 1

Median Rearrangement

SnackDown 2021 - Online Round 1A

Round Robin Ranks , Dance Moves, Equal Beauty, Min Max LCM

SnackDown 2021 - Online Pre-Elimination

Non-Decreasing Subsequence of size K, Product Pain

November Lunchtime 2021 Division 1

Permutation Pairs, Subarray Jumps

Infinity 2k21 Division 1 (Unrated)

Marbles

January Lunchtime 2022 Division 1

Permutation XOR Sum

February Lunchtime 2022 Division 1

Magical Modulo, Magnet Sort

March Lunchtime 2022 Division 1

Winter, Adjacency Love

April Lunchtime 2022 Division 1(Rated)

Secret Machine Mania

May Lunchtime 2022 Division 1 (Rated)

Equal After And

Total Problems Solved: 279

Contributions

Problems Authored (2)
Contest Problem
OTHERS OLYMREC
ARYACAKE
Problems Tested (1)
Contest Problem
OTHERS OLYMREC
Editorials Contributed (0)

No Contribution

1996
(Div 2)
★★★★
CodeChef Rating (Highest Rating 2035)
  • Inactive Global Rank
  • Inactive Country Rank

Badges

Contest Contender - Silver Badge

Contest Contender - Silver Badge

Received for participating in 25 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 [email protected] +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
SQL for Data Analysis
Frontend Developer
Java Backend Developer
Data Analysis using Python
Python Backend Developer
C++ Developer

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

© 2025 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.