Keerthana

• Username: 3★demonqueen
• Country:  India
• Student/Professional:Professional
• Organisation:Amazon Development Center, Bangalore, 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: 24

Current Ratings Graph Old Ratings Graph

1696 (+39)RatingProvisional
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February Cook-Off 2022 Division 2(2022-02-21 22:30:02)

Global Rank:   369

Cheated in:   

Ratings System Update

(2022-02-21 22:30:02)

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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1696 (-203)RatingProvisional
Rating i Provisional Rating, click to know more

February Cook-Off 2022 Division 2(2022-12-20 00:00:00)

Global Rank:   369

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?

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Contests (24)

April CodeChef Starters 2021 Division 3 (Rated)

Hiring Test, Chef On Island

May Cook-Off 2021 Division 3

Marathon, The Last Problem

May Lunchtime 2021 Division 2

Tom And Jerry 1

May CodeChef Starters 2021 Division 3 (Rated)

Cheating Time, Plagiarism, Lazy Chef, Correct Sentence

June Challenge 2021 Division 3 (Rated)

Bella ciao, Summer Heat

June Cook-Off 2021 Division 3

XOR Folding, ICPC Balloons, Chefland Visa, The Wave

June Lunchtime 2021 Division 2

False Number, Unpleasant Ones

June CodeChef Starters 2021 Division 2 (Unrated)

Cyclic Quadrilateral, Chess Match, Chef and Queries, Total Correct Submissions

July Cook-Off 2021 Division 2

XOR-ORED, Mod Equality

July Lunchtime 2021 Division 2

Beautiful Pairs

August Cook-Off 2021 Division 2

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

September Cook-Off 2021 Division 2

Zebra Crossing, Fake Swaps, Adjacency Hatred

CodeChef Starters 11 Division 2 (Rated)

The Grid Fill Problem, Obtain the Sum

CodeChef Starters 13 Division 2 (Rated)

Magical Doors, Maximum Light Up, Chef in Vaccination Queue

September Lunchtime 2021 Division 2

Balanced and Unique Arrays, Alice vs Bob Faceoff, Yet another SOD problem

CodeChef Starters 19 Division 2 (Rated)

Indivisible Permutation

December Cook-Off 2021 Division 2

Median Minimization, Musical Chairs

December Lunchtime 2021 Division 2

Maximum Trio, Romantic Reversals

CodeChef Starters 21 Division 2 (Rated)

Akash and Grid, And Or Union

CodeChef Starters 22 Division 2 (Rated)

An Interesting Sequence, Even Subset Xor, Equal LIS

Exun 2021-22 Division 2 (Rated)

Sarthak and his Magic Grid, Vedant and his Hidden Array

January Cook-Off 2022 Division 2

Palindromes Not Allowed, Merged LIS, Subsegment Divisibility , Mean Maximization

CodeChef Starters 24 Division 2 (Rated)

Anti Palindrome, Avoid Contact, Divisors and Reciprocals, Yet Another Constructive Problem

February Long 2022 - I, Division 2 (Unrated)

Binary Base Basics, Bitwise Blend, N Queens Puzzle Solved !

CodeChef Starters 25 Division 2 (Rated)

Building Towers, Equal MEX, Points and Lines

February Cook-Off 2022 Division 2

Perfect Permutation, PerMEXuation , Prefix Permutation

Total Problems Solved: 90