Rajan

• Username: 5★r_ajan
• Country:  India
• Student/Professional:Student
• Institution:Chitkara University Punjab, India
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

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

Rating Graph

No. of Contests Participated: 8

Current Ratings Graph Old Ratings Graph

2148 (+47)RatingProvisional
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December Challenge 2020 Division 1(2020-12-14 15:00:00)

Global Rank:   70

Cheated in:   

Ratings System Update

(2020-12-14 15:00:00)

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2148 (-83)RatingProvisional
Rating i Provisional Rating, click to know more

December Challenge 2020 Division 1(2022-12-20 00:00:00)

Global Rank:   70

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)

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Practice Paths (0)

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Contests (8)

July Challenge 2020 Division 2

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

August Challenge 2020 Division 2

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

September Challenge 2020 Division 1

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

July Cook-Off 2020 Division 2

Even-tual Reduction, OR-thodox Distinction

July Lunchtime 2020 Division 2

Chef and Steps, Maximum Candies

October Challenge 2020 Division 1

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

November Challenge 2020 Division 1

Magical Candy Store, Unusual Queries, Scalar Product Tree, Restore Sequence, Ada and Dishes, Connect on a Grid (Challenge)

December Challenge 2020 Division 1

Hail XOR, Square Root of LCA Convolution, Calculus, String Operations, Positive Prefixes, Even Pair Sum, Vaccine Production, Vaccine Distribution

September Challenge 2021 Division 1 (Unrated)

XOR Equal, Shuffling Parities, 2-D Point Meeting, Airline Restrictions, Travel Pass

SnackDown 2021 - Online Qualifiers

Lucky Number

October Challenge 2021 Division 1 (Unrated)

Longest AND Subarray, MEX-OR

CodeChef Starters 16 Division 1 (Unrated)

Professor And Directions, Chef and Magical Steps

SnackDown 2021 - Online Round 1A

Yet Another Flipping Problem, Round Robin Ranks , Dance Moves, Equal Beauty, Min Max LCM

Code: Nium Challenge

Alphabet Difference, Divide Students Into Classes

CodeChef Starters 22 Division 1 (Unrated)

Even Subset Xor, Merging Binary Strings, Equal LIS

Code Drive Division 1 (Unrated)

Maximum Factors Problem

January Long 2022 - I, Division 1 (Unrated)

Chef and Riffles

Total Problems Solved: 113