Prerna Singh Chauhan

• Username: 2★prerna_psc
• Country:  India
• Student/Professional:Student
• Institution:Indian Institute of Technology Kanpur
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

Last 6 Months 2025 (Jan-Jun)2024 (Jul-Dec)2024 (Jan-Jun)

Rating Graph

No. of Contests Participated: 10

Current Ratings Graph Old Ratings Graph

1589 (+19)RatingProvisional
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Starters 71 Division 3 (Rated)(2022-12-28 23:00:04)

Global Rank:   1136

Cheated in:   

Ratings System Update

(2022-12-28 23:00:04)

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1540 (+17)RatingProvisional
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December Long 2022 Division 3 (Rated)(2022-12-20 00:00:00)

Global Rank:   58

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 (10)

Starters 36 Division 4 (Rated)

Presents for Cheffina, Chef and Chapters, Chef and Bird farm, Who is taller!

Starters 39 Division 4 (Rated)

Compress the Video, Recent contest problems, My very 1st contest!, A or B, Chess Ratings

Starters 47 Division 4 (Rated)

Chef On Date, Minimum Coins, Chess Time

Starters 59 Division 4 (Rated)

Chef and Happy String , Speciality, Audible Range

October Long 2022 Division 4 (Rated)

Podium Finish, Minimum Pizzas, Binary Substituition, Building Race, Single Operation Part 1, Single Operation Part 2

Starters 60 Division 4 (Rated)

Card Removal, Yet Another Palindrome Problem, Palindrome Flipping, Tax in Chefland, Expert Setter, Paper Cutting

Starters 61 Division 4 (Rated)

Minimise LCS, Different Consecutive Characters , Reach on Time, Odd Sum Pair

Starters 70 Division 3 (Rated)

Frequency Array Retrieval, Prime Reversal, Minimum distance between 1s, Cost of Groceries

Starters 71 Division 3 (Rated)

Pet Store, Snapchat, Perfect Trio, Maximizing LCS

December Long 2022 Division 3 (Rated)

Divisible by A_i, Gcd of Subarrays, Divisible by K, Reach fast, Maximise XOR

Total Problems Solved: 54