Rehan khan

• Username: 4★rehank478
• Country:  India
• Student/Professional:Student
• Institution:Indian Institute of Information Technology, Kalyani West Bengal, India
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

Last 6 Months 2025 (Jan-Jun)2024 (Jul-Dec)2024 (Jan-Jun)

Rating Graph

No. of Contests Participated: 17

Current Ratings Graph Old Ratings Graph

1825 (+61)RatingProvisional
Rating i Provisional Rating, click to know more

January Lunchtime 2022 Division 1(2022-01-29 23:00:00)

Global Rank:   138

Cheated in:   

Ratings System Update

(2022-01-29 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?

1825 (-348)RatingProvisional
Rating i Provisional Rating, click to know more

January Lunchtime 2022 Division 1(2022-12-20 00:00:00)

Global Rank:   138

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)

None

Practice Paths (0)

None

Contests (17)

April Challenge 2019 Division 2

Maximum Remaining

April Cook-Off 2019 Division 2

Making a Meal

June Challenge 2019 Division 2

Chef and Proxy, Guddu on a Date

August Challenge 2019 Division 2

Football

September Challenge 2019 Division 2

Easy Fibonacci, Chef and Interesting Subsequences

April Cook-Off 2020 Division 2

Matrix Decomposition, Lift Requests

July Challenge 2020 Division 2

Missing a Point, Chef and Strings, Chef and Card Game, Chefina and Swaps, Ada King

Coders' Legacy (Rated for all)

Chef vs Doof

January Lunchtime 2021 Division 3 (Unrated)

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

April Lunchtime 2021 Division 3

Coldplay, Array Rotation, Bench Press, Chef in Heaven , Equinox Strings

May Cook-Off 2021 Division 2

The Last Problem

May CodeChef Starters 2021 Division 2 (Unrated)

Cheating Time, Minimum Popping, Plagiarism, Lazy Chef, Correct Sentence

June Cook-Off 2021 Division 2

The Wave

June Lunchtime 2021 Division 2

From Rational to Binary, False Number, Unpleasant Ones

August Lunchtime 2021 Division 2

K-th Maximum, Just a Graph, Crossing Blocks

CodeChef Starters 22 Division 2 (Rated)

An Interesting Sequence, Even Subset Xor, Merging Binary Strings, Equal LIS

Exun 2021-22 Division 2 (Rated)

Sarthak and his Magic Grid, Vedant and his Hidden Array, Aujasvit and the Circle Game, Harshikaa and the Rain

January Lunchtime 2022 Division 1

Permutation XOR Sum

CodeChef Starters 24 Division 1 (Unrated)

Anti Palindrome

Starters 47 Division 1 (Unrated)

Copy and Push Back

Total Problems Solved: 130