Prafful vishnoi

• Username: 2★derek_pv
• Country:  India
• Student/Professional:Student
• Institution:Indian Institute of Information Technology, Lucknow Uttar Pradesh, India
• 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: 20

Current Ratings Graph Old Ratings Graph

1569 (-57)RatingProvisional
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Starters 75 Division 2 (Rated)(2023-01-26 23:00:02)

Global Rank:   1485

Cheated in:   

Ratings System Update

(2023-01-26 23:00:02)

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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1626 (+9)RatingProvisional
Rating i Provisional Rating, click to know more

Starters 64 Division 3 (Rated)(2022-12-20 00:00:00)

Global Rank:   97

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 (20)

January Cook-Off 2022 Division 3

Hungry Ashish, Mask Policy

February Long 2022 - I, Division 3 (Rated)

Chef and the Hair Salon, N Queens Puzzle Solved !

March Long Two 2022, Division 4 (Rated)

Increase IQ, The Three Topics, The Rating Dilemma

CodeChef Starters 32 Division 4 (Rated)

Binary String Cost, Volume Control, Finding Shoes, Course Registration

April Lunchtime 2022 Division 4(Rated)

Lunchtime, Mario and Transformation, Mario and Bullet, Pair Pain

Starters 35 Division 4 (Rated)

Police and Thief, Jenga Night, Water Requirement, Dark Light

Starters 38 Division 4 (Rated)

Chef gives Party, Get Subscription, Average Gift, Dominant Army, Circular Track

May Lunchtime 2022 Division 4 (Rated)

Bucket and Water Flow , Apples and Oranges, How many unattempted problems, Problems in your to-do list

June Cook-Off 2022 Division 4 (Rated)

Rating Improvement, Playlist, Break the Stick, First and Last

July Lunchtime 2022 Division 4 (Rated)

True and False Paper, Interior Design, The Last Levels

Starters 48 Division 4 (Rated)

Buy Lamps, Fill The Grid, Passes for Fair, Fill Candies, Make Palindrome 2, Positive array, Accurate XOR

Starters 49 Division 3 (Rated)

N Buttons 1 Bulb, Split The String, High Frequency, Monks, Valid Minimum

Starters 50 Division 3 (Rated)

Nearest Court

Starters 51 Division 3 (Rated)

Dominant Element, TV Discount, Copy and Paste, Split N, Different Medians

August Long 2022 Division 3 (Rated)

Sale Season, XOR with smallest element, Hello Equation, Make A and B equal

Starters 52 Division 3 (Rated)

Air Conditioner Temperature, Gritty Grid, WA Test Cases, Minimum Sum

Starters 53 Division 3 (Rated)

Odd Pairs, Make A and B equal, Weights

Starters 64 Division 3 (Rated)

Mario and the Broken String, Luigi and Uniformity, Prime Factor Division, Distinct Neighbours , Distinct Colors

Total Problems Solved: 84