Prerna Rathi

• Username: 2★prerna_rathi
• Country:  India
• Student/Professional:Student
• Institution:Pune Institute of Computer Technology Pune, Maharashtra, 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: 26

Current Ratings Graph Old Ratings Graph

1538 (+32)RatingProvisional
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CodeChef Starters 15 Division 3 (Rated)(2021-10-12 23:15:04)

Global Rank:   704

Cheated in:   

Ratings System Update

(2021-10-12 23:15:04)

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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1538 (-91)RatingProvisional
Rating i Provisional Rating, click to know more

CodeChef Starters 15 Division 3 (Rated)(2022-12-20 00:00:00)

Global Rank:   704

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 (26)

January Lunchtime 2021 Division 3 (Unrated)

Even Sum, Pair Me

February Challenge 2021 Division 3

Highest Divisor

April CodeChef Starters 2021 Division 3 (Rated)

Chef On Island, Hiring Test

May Lunchtime 2021 Division 3

Hoop Jump

May CodeChef Starters 2021 Division 3 (Rated)

Lazy Chef

June Challenge 2021 Division 3 (Rated)

Summer Heat

June Lunchtime 2021 Division 3

Richie Rich

July Challenge 2021 Division 3 (Rated)

Maximum Production, Relativity

July Cook-Off 2021 Division 3

Shoe Fit

July Lunchtime 2021 Division 3

Chef and Spells, Red Alert

CodeChef Starters 6 Division 3 (Rated)

Three Dices, Cricket Ranking

CodeChef Starters 7 Division 3 (Rated)

Chess Format, Food Chain

August Challenge 2021 Division 3 (Rated)

Special Triplets, Problem Difficulties, Olympics Ranking

August Lunchtime 2021 Division 3

Maximum Length Even Subarray, Programming Languages

CodeChef Starters 8 Division 3 (Rated)

Javelin Qualification, Penalty Shots

CodeChef Starters 9 Division 3 (Rated)

Black cells in a chessboard, Large Square, Bus full of passengers

AlgoManiac - Code For Future Division 3 (Rated)

The Old Saint And Three Questions

September Challenge 2021 Division 3 (Rated)

Travel Pass, Airline Restrictions, Shuffling Parities

September Cook-Off 2021 Division 3

Cars and Bikes, Fake GCD, Adjacency Hatred

SnackDown 2021 - Online Qualifiers

Lucky Number

CodeChef Starters 11 Division 3 (Rated)

The Grid Fill Problem, Find the Direction, Obtain the Sum, The Two Dishes

CodeChef Starters 13 Division 3 (Rated)

Chef in Vaccination Queue, Maximum Light Up, The Preparations, Magical Doors

CodeChef Starters 14 Division 3 (Rated)

Diagonal movement, RCB and Playoffs, FIXFIX, Odd GCD

October Challenge 2021 Division 3 (Rated)

Longest AND Subarray, MEX-OR, Three Boxes, Which Mixture

September Lunchtime 2021 Division 3

Two Dishes, Balanced and Unique Arrays, Vaccine Dates , Yet another SOD problem

SnackDown 2021 - Online Round 1A

Dance Moves, Min Max LCM

November Challenge 2021 Division 2 (Unrated)

Weird Palindrome Making, Equal Coins

Total Problems Solved: 144