ls_naveen

• Username: 5★chef_lsn
• Country:  India
• Student/Professional:Student
• Institution:Indian Institute of Technology Madras
• 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: 21

Current Ratings Graph Old Ratings Graph

2162 (+14)RatingProvisional
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SnackDown 2021 - Online Elimination Round (Rated for all)(2021-12-13 16:30:00)

Global Rank:   179

Cheated in:   

Ratings System Update

(2021-12-13 16:30:00)

This is the difference due to changing the rating system.This graph is not updated after 20th Dec 2022. Know more

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2162 (-116)RatingProvisional
Rating i Provisional Rating, click to know more

SnackDown 2021 - Online Elimination Round (Rated for all)(2022-12-20 00:00:00)

Global Rank:   179

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 (21)

December Challenge 2019 Division 2

Easy Subsequence Selection, Plus Multiply, That Is My Score!

February Challenge 2020 Division 2

No Change Required, The Theatre Problem, School of Geometry, Hard Cash

April Challenge 2020 Division 1

Strange Number, Squared Subsequences, Leaked Answers (Challenge)

March Cook-Off 2020 Division 2

Mysterious Sequence, Find Your Gift, Box of Chocolates

April Cook-Off 2020 Division 2

Matrix Decomposition, Lift Requests, Simple Operations

May Cook-Off 2020 Division 1

Roads in Chefland, Chef, Chefina and Their Friendship

January Lunchtime 2020 Division 2

Bob and His Friends, Chef and Street Food, Under the Tunnels

February Lunchtime 2020 Division 2

At the Gates, Swapping to Palindrome, Not All Flavours

March Lunchtime 2020 Division 1 (Unrated)

Maximize LCM

April Lunchtime 2020 Division 1

Positive Mex

May Lunchtime 2020 Division 1

Convert the String

July Challenge 2020 Division 1

Chefina and Swaps, Chef and Dragon Dens, Missing a Point, Doctor Chef

August Challenge 2020 Division 1

Chef and Wedding Arrangements, Chef Thanos Wants Perfect Balance, Subsequence Frequency Counting, Insanely Hard School Exams, Smallest KMP

August Cook-Off 2020 Division 1

Red-blue Trees, Polygon Relationship

June Lunchtime 2020 Division 1

Maximum AND, Gold Mining

January Cook-Off 2021 Division 1

Mex Subsequence, Prefix And

January Lunchtime 2021 Division 1 (Unrated)

Shifting Spoons, Even Sum, Dreams of Divisibility, Good Grid

Coders' Legacy (Rated for all)

Chef vs Doof, Doof on Cartesian, Doof fires Brackets

September Cook-Off 2020 Division 1

Maximise Subsequence Value, Minimum Insertions

SnackDown 2021 - Online Qualifiers

Lucky Number, Minimise Difference, Maximum Number Of Distinct Elements

SnackDown 2021 - Online Round 1A

Round Robin Ranks , Dance Moves, Equal Beauty, Min Max LCM

November Challenge 2021 Division 1 (Unrated)

Xor Equation, Weird Palindrome Making, Hill Sequence

SnackDown 2021 - Online Pre-Elimination

Non-Decreasing Subsequence of size K, Good ranking, Product Pain, Guests like slippers

SnackDown 2021 - Online Elimination Round (Rated for all)

Graduate Work Matters, Sorting Segments

January Long 2022 - I, Division 1 (Unrated)

Sequence Master, Chef and Riffles

Total Problems Solved: 160