Roshan Kumar

• Username: 5★roshk_21
• Country:  India
• Student/Professional:Student
• Institution:The LNM Institute of Information Technology, Jaipur Rajasthan, India
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

Last 6 Months 2026 (Jan-Jun)2025 (Jul-Dec)2025 (Jan-Jun)

Rating Graph

No. of Contests Participated: 11

Current Ratings Graph Old Ratings Graph

2029 (+46)RatingProvisional
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CodeChef Starters 22 Division 2 (Rated)(2022-01-19 23:00:02)

Global Rank:   191

Cheated in:   

Ratings System Update

(2022-01-19 23:00:02)

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2029 (-22)RatingProvisional
Rating i Provisional Rating, click to know more

CodeChef Starters 22 Division 2 (Rated)(2022-12-20 00:00:00)

Global Rank:   191

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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Contests (11)

August Cook-Off 2020 Division 2

Polygon Relationship, Chef and Work, K-Foldable String, Red-blue Trees

August Lunchtime 2020 Division 1

Game on a Strip, Alien Invasion

December Cook-Off 2020 Division 1

Self-Destructing Strings, Circle of Chaos

December Lunchtime 2020 Division 1 (Unrated)

One Zero Swaps, Three Letters

Code Ensemble (Rated for Division 2)

Cherry and Bits, Priya and AND, Traversing Trees, Help Martha

July Cook-Off 2021 Division 2

XOR-ORED, Mod Equality

August Cook-Off 2021 Division 2

Odd Array, Clear the Array, Equal Difference, Chef and Closure, Different String

December Lunchtime 2021 Division 2

Maximum Trio, Romantic Reversals

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

Starters 61 Division 1 (Unrated)

Weird Subarrays, Subarray Removal

Total Problems Solved: 37