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 » Rehan Khan
user profile

Rehan Khan

  • 4★n00bie_1004
  •   India
  • Student
  • Delhi Public School, Faridabad Haryana
  • No Active Plan. View Details

Submissions Heat Map

Rating Graph

No. of Contests Participated: 18
1813 (-20)RatingProvisional
Rating i Provisional Rating, click to know more
Exun 2021-22 Division 2 (Rated)(2022-01-12 23:00:02)
Global Rank:   1704
Cheated in:   

Ratings System Update

(2022-01-12 23:00:02)
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?
1813 (-1)RatingProvisional
Rating i Provisional Rating, click to know more
Exun 2021-22 Division 2 (Rated)(2022-12-20 00:00:00)
Global Rank:   1704
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

40%

Contests (18)

August Cook-Off 2020 Division 2

Polygon Relationship

October Challenge 2020 Division 2

Positive AND, Chef and Easy Queries, Covid Run, D-Dimensional MST, Replace for X, Adding Squares

November Challenge 2020 Division 1

Restore Sequence, Magical Candy Store

December Challenge 2020 Division 1

Hail XOR, Calculus, Positive Prefixes, Even Pair Sum

December Cook-Off 2020 Division 1

Self-Destructing Strings

January Cook-Off 2021 Division 2

Prime Tuples, Maximise Islands

December Lunchtime 2020 Division 1 (Unrated)

Three Letters, One Zero Swaps

October Cook-Off 2020 Division 1

Path-etic Sums

November Cook-Off 2020 Division 1

Chef and IPC Certificates, Flip the String

November Lunchtime 2020 Division 1

Gasoline Introduction, Gasoline

September Cook-Off 2020 Division 2

Maximise Subsequence Value, Bowling Strategy

September Lunchtime 2020 Division 2

GCD operations, Root the Tree, Watermelon

February Lunchtime 2021 Division 2

Average Sorting, Palpal Strings, Coprime Range

April Lunchtime 2021 Division 2

Chef in Heaven , Bench Press, Array Rotation

May Lunchtime 2021 Division 2

K-Subarrays, Total Components, Charges, Tom And Jerry 1

June Challenge 2021 Division 1 (Unrated)

Shortest Route, Bitwise Tuples

July Challenge 2021 Division 1 (Unrated)

XxOoRr, Chef vs Bharat, Optimal Denomination, Maximum Production, Relativity, K Path Query

CodeChef Starters 6 Division 1 (Unrated)

Even tuples, Three Dices, Cricket Ranking

CodeChef Starters 7 Division 1 (Unrated)

Chess Format, Food Chain

August Challenge 2021 Division 1 (Unrated)

Olympics Ranking, Problem Difficulties, Chef and Bulb Invention, Array Filling, Charge Scheduling

August Cook-Off 2021 Division 1

Odd Array, Different String, Clear the Array

September Challenge 2021 Division 1 (Unrated)

XOR Equal, Shuffling Parities, Airline Restrictions, Travel Pass

SnackDown 2021 - Online Qualifiers

Lucky Number, Maximum Number Of Distinct Elements

SnackDown 2021 - Online Round 1A

Round Robin Ranks , Dance Moves, Min Max LCM

SnackDown 2021 - Online Round 1B

Queens Placement , Largest Laddu, Help Nishant

Exun 2021-22 Division 2 (Rated)

Sarthak and his Magic Grid, Vedant and his Hidden Array

Total Problems Solved: 195

1813
(Div 2)
★★★★
CodeChef Rating (Highest Rating 1875)
  • Inactive Global Rank
  • Inactive Country Rank

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

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
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.