Prashant Upadhyay

• Username: 1★persy
• Country:  India
• Student/Professional:Student
• Institution:Birla Institute of Technology Mesra Ranchi, Jharkhand, 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: 17

Current Ratings Graph Old Ratings Graph

1209 (+42)RatingProvisional
Rating i Provisional Rating, click to know more

May Challenge 2019 Division 2(2019-05-13 15:03:00)

Global Rank:   1479

Cheated in:   

Ratings System Update

(2019-05-13 15:03:00)

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?

1209 (-109)RatingProvisional
Rating i Provisional Rating, click to know more

May Challenge 2019 Division 2(2022-12-20 00:00:00)

Global Rank:   1479

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 (17)

August Challenge 2016

Chef and Round Run, Chef and Chocolate

September Challenge 2016

Chef and digits of a number, Faded Palindromes

December Challenge 2016

Train Partner

August Lunchtime 2016

Studying Alphabet

November Lunchtime 2016

Chef and his Students

January Challenge 2017

Cats and Dogs

February Challenge 2017

Chef and His Apartment Dues

March Challenge 2017

Xenny and Alternating Tasks

August Long Challenge 2017

Chef and Rainbow Array

August Lunchtime 2017

Mathison and pangrams

May Challenge 2018 Division 2

Mighty Friend, Minimum Deletions, Xor Again

June Challenge 2018 Division 2

Naive Chef

March Challenge 2019 Division 2

Chef got Recipes, Chef and Number Game, Chef and a Beautiful Digit

May Challenge 2019 Division 2

Matches, Reduce to One

Total Problems Solved: 50