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 » Rajat Kumar Prajapati
user profile

Rajat Kumar Prajapati

Rookie League Rookie League
  • 1★itsrajatkumar
  •   India
  • Professional
  • Aarachnomesh Pvt Ltd
  • No Active Plan. View Details

Submissions Heat Map

Rating Graph

No. of Contests Participated: 19
1225 (+47)RatingProvisional
Rating i Provisional Rating, click to know more
Starters 235 (Rated)(2026-04-22 22:00:06)
Global Rank:   2368
Cheated in:   

Ratings System Update

(2026-04-22 22:00:06)
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?
1173 (+17)RatingProvisional
Rating i Provisional Rating, click to know more
September Long 2022 Division 3 (Rated)(2022-12-20 00:00:00)
Global Rank:   3441
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?

DSA Rating Graph

No. of DSA Contests Participated: 4
1383? (-9)RatingProvisional
Rating i Provisional Rating, click to know more
Monday Munch - DSA Challenge 010 (Rated)(2026-07-06 22:00:00)
Global Rank:   2909
Cheated in:   

Ratings System Update

(2026-07-06 22:00:00)
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 (2)

learn-icon

Git/Github

5%
learn-icon

Linked Lists

28%

Practice Paths (4)

learn-icon

Arrays, Strings & Sorting

10%
learn-icon

Practice JavaScript

26%
learn-icon

Practice Python

10%
learn-icon

Level up from 1* to 2*

6%

Contests (19)

SnackDown 2021 - Online Qualifiers

Lucky Number

SnackDown 2021 - Online Round 1A

Round Robin Ranks , Min Max LCM, Dance Moves

November Challenge 2021 Division 3 (Rated)

Equal Coins, Which Fuel is Cheaper

FizzBuzz Division 3 (Rated)

Can_Reach, Can You Eat It

CodeChef Starters 32 Division 3 (Rated)

Finding Shoes

CodeChef Starters 33 Division 4 (Rated)

The Cheaper Cab, Monthly Budget, Minimum Cars required

May Long One 2022 Division 4 (Rated)

Miami GP, Football Cup, Sugarcane Juice Business

June Cook-Off 2022 Division 4 (Rated)

Rating Improvement, Playlist, First and Last

June Long Two 2022 Division 4 (Rated)

Count the ACs, Complementary Strand in a DNA, Fitness

Starters 49 Division 4 (Rated)

Is it hot or cold

August Long 2022 Division 4 (Rated)

Maximum Submissions, Make A and B equal, Two Trains, XOR with smallest element, Sale Season, Hello Equation

Starters 52 Division 4 (Rated)

AI Analysing Code, Minimum Sum, WA Test Cases, Air Conditioner Temperature, K-Flip, Gritty Grid

August Lunchtime 2022 Division 4 (Rated)

Easy Permutation, Height of Rationals, Array Equality, Equalizing Numbers, Candy Distribution, Test Averages

Starters 53 Division 4 (Rated)

Black&White Ring Game, Car Trip, Greater Average, Odd Pairs, Make A and B equal, Queen Blocks, Weights

Starters 54 Division 4 (Rated)

Team of Two, Number of Credits, Equal Distinct, Ticket Fine

September Long 2022 Division 3 (Rated)

Speed Limit Test, Bob at the Bank

Starters 79 Division 4 (Rated)

Better Deal, Ageing

Starters 224 (Rated)

The Coding Streak, Qualified or Not

Starters 225 (Rated)

Maximum Score, Payment Scheme, All Even

Starters 235 (Rated)

Contest Registration Fee, Recover Palindrome, MEX Spectrum, Balanced Positions in a Permutation

Weekend Dev Challenge 44: Cybersecurity

Challenge 1 - SQL Injection Firewall, Challenge 2 - Cross-Site Scripting (XSS) Sanitizer, Challenge 3 - CSRF Protector, Challenge 4 - Secure Password Storage, Challenge 5 - API Rate Limiting Enforcer

Weekend Dev Challenge 45: Cybersecurity

Challenge 5 - File Upload Sanitizer, Challenge 3 - Privilege Escalation Defender, Challenge 4 - Session Security Guardian, Challenge 1 - Security Headers Enforcer, Challenge 2 - IDOR Access Protector

Weekend Dev Challenge 46: Cybersecurity

Challenge 1 - Historical Cipher Decryption, Challenge 2 - Pixelated Secrets, Challenge 3 - The Obfuscated Vault, Challenge 4 - The Two-Faced Token, Challenge 5 - The Bobby Tables Portal

Weekend Dev Challenge 47: Cybersecurity

The MongoDB Operator, The Ghost Commit, The Silent Typist, The Mutilated Archive, The Remainder Paradox

Weekend Dev Challenge 48: Golang Projects

Cloud Budget Estimator, GitHub Profile Analyzer

Monday Munch - DSA Challenge 002 (Rated)

Largest Odd Substring, Chef Builds Subsets, Is the i-th bit set, Chef need runs

Monday Munch - DSA Challenge 004 (Rated)

Win the league, Mountain Peak

Monday Munch - DSA Challenge 009 (Rated)

Leader of an Array, CodeChef XP, Least Common Anagram

Monday Munch - DSA Challenge 010 (Rated)

Power Grid, Chef and the Frisbee

Total Problems Solved: 232

1225
(Div 4)
★
CodeChef Rating (Highest Rating 1360)
  • 79931 Global Rank
  • 76083 Country Rank
1383?i Provisional Rating, click to know more
DSA Rating (Highest Rating 1392)
  • 4163 Global Rank
  • 4062 Country Rank

Skill tests

41%

JavaScript Skill test

Attempted on September 2025
View skill tests

Badges

Contest Contender - Bronze Badge

Contest Contender - Bronze Badge

Received for participating in 5 Contests

Problem Solver - Bronze Badge

Problem Solver - Bronze Badge

Received for solving 50 Problems

Certificates

SNCK1A21

Issued November 2021

View

Recent Activity

Fetching recent activity

Bizzhub Workspaces, 6th Floor, MSR North Tower, Outer Ring Rd, Manayata Tech Park, Nagavara, Bengaluru, Karnataka 560045 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
Hire from us
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.