Prakhar Singh

• Username: 2★prakhar646
• Country:  India
• Student/Professional:Student
• Institution:Indian Institute of Technology Kharagpur 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: 17

Current Ratings Graph Old Ratings Graph

1585 (-54)RatingProvisional
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Starters 53 Division 2 (Rated)(2022-08-24 23:00:02)

Global Rank:   1893

Cheated in:   

Ratings System Update

(2022-08-24 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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1585 (-203)RatingProvisional
Rating i Provisional Rating, click to know more

Starters 53 Division 2 (Rated)(2022-12-20 00:00:00)

Global Rank:   1893

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)

January Challenge 2020 Division 2

Doraemon, Chef and Dynamo, Breaking Bricks, Equality

February Challenge 2020 Division 2

No Change Required, The Theatre Problem, School of Geometry, Hard Cash, Long Contest and Cook Off Overlaps

March Challenge 2020 Division 2

XOR Engine, Ada Bishop 2, Pintu and Fruits

May Challenge 2020 Division 2

Isolation Centers, Coronavirus Spread

February Cook-Off 2020 Division 2

Penalty Shoot-Out II, Tax Slabs

UWCOI 2020 (Rated for all)

Button Pairs, Find maximum in an Array

December Challenge 2020 Division 2

Positive Prefixes, Even Pair Sum, Vaccine Production, Vaccine Distribution

March Challenge 2021 Division 3

No Time to Wait, Chef and Groups

April Challenge 2021 Division 3

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

May Cook-Off 2021 Division 3

The Last Problem, Marathon, Vaccine Drive

May Challenge 2021 Division 3 (Rated)

Xor Equality, Golf, Solubility

June Challenge 2021 Division 2 (Unrated)

Summer Heat

August Challenge 2021 Division 2 (Unrated)

Olympics Ranking

CodeChef Starters 21 Division 2 (Rated)

Akash and Grid, ChefWM, And Or Union

January Cook-Off 2022 Division 2

Palindromes Not Allowed, Mean Maximization, Subsegment Divisibility

January Lunchtime 2022 Division 2

Subarray permutations, Prefix Zeros, Permutation XOR Sum

Starters 53 Division 2 (Rated)

Make A and B equal

Total Problems Solved: 115