Prerna Gupta

• Username: 2★prerna_27
• Country:  India
• Student/Professional:Student
• Institution:Indian Institute of Engineering Science and Technology, Shibpur Howrah, West Bengal, 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: 12

Current Ratings Graph Old Ratings Graph

1558 (+42)RatingProvisional
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April Challenge 2021 Division 3(2021-04-12 15:00:04)

Global Rank:   2636

Cheated in:   

Ratings System Update

(2021-04-12 15:00:04)

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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1558 (-76)RatingProvisional
Rating i Provisional Rating, click to know more

April Challenge 2021 Division 3(2022-12-20 00:00:00)

Global Rank:   2636

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 (12)

December Challenge 2019 Division 2

That Is My Score!, Plus Multiply

April Challenge 2020 Division 2

Unit GCD, Sell All the Cars, COVID Pandemic and Long Queue, Strange Number

May Challenge 2020 Division 2

Coronavirus Spread, Isolation Centers

June Challenge 2020 Division 2

Chef and Icecream, Chef and Price Control, Chef and String, The Tom and Jerry Game!, Even Matrix

July Challenge 2020 Division 2

Ada King, Missing a Point, Chef and Card Game, Chef and Strings

August Challenge 2020 Division 2

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

January Challenge 2021 Division 3

Fair Elections, Chef and Division 3, Point Of Impact, Encoded String

February Challenge 2021 Division 3

Maximise Function, Highest Divisor, Prime Game, Chef and Meetings, Team Name, Frog Sort

March Challenge 2021 Division 3

Interesting XOR!, Chef and Groups, Space Arrays, No Time to Wait

April Challenge 2021 Division 3

Worthy Matrix, Chef and Dice, Valid Pair, World Record, Strong Language

Total Problems Solved: 53