Prakhar Rai

• Username: 3★rai_prakhar_
• Country:  India
• Student/Professional:Student
• Institution:Jaipur Engineering College and Research Centre Rajasthan, 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: 19

Current Ratings Graph Old Ratings Graph

1726 (+25)RatingProvisional
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CodeChef Starters 24 Division 2 (Rated)(2022-02-02 23:00:02)

Global Rank:   1111

Cheated in:   

Ratings System Update

(2022-02-02 23:00:02)

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1726 (-134)RatingProvisional
Rating i Provisional Rating, click to know more

CodeChef Starters 24 Division 2 (Rated)(2022-12-20 00:00:00)

Global Rank:   1111

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 (19)

June Challenge 2020 Division 2

Chef and Price Control

September Challenge 2020 Division 2

A Problem on Sticks, Ada Matrix

October Challenge 2020 Division 2

Covid Run

November Challenge 2020 Division 2

Restore Sequence, Ada and Dishes, Iron, Magnet and Wall

January Challenge 2021 Division 3

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

February Challenge 2021 Division 3

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

May Challenge 2021 Division 2 (Rated)

Xor Equality, Modular Equation, Tic Tac Toe

July Cook-Off 2021 Division 2

XOR-ORED, Mod Equality

August Challenge 2021 Division 2 (Unrated)

Special Triplets, Chef and Bulb Invention, Problem Difficulties, Olympics Ranking

August Lunchtime 2021 Division 2

K-th Maximum, Crossing Blocks, Just a Graph

CodeChef Starters 10 Division 2 (Rated)

Maximise the Subsequence Sum, Remove One Element

SnackDown 2021 - Online Qualifiers

Lucky Number, Maximum Number Of Distinct Elements

September Lunchtime 2021 Division 2

Balanced and Unique Arrays, Yet another SOD problem

October Cook-Off 2021 Division 2

Odd Sum, 01 Subsequence

SnackDown 2021 - Online Round 1A

Round Robin Ranks , Dance Moves, Equal Beauty, Min Max LCM

November Cook-Off 2021 Division 2

Missing Sums

December Lunchtime 2021 Division 2

Maximum Trio, Romantic Reversals

CodeChef Starters 22 Division 2 (Rated)

Equal LIS, Even Subset Xor, An Interesting Sequence

January Long 2022 - I, Division 2 (Unrated)

Prime in a binary string

January Long 2022 - II, Division 2 (Unrated)

Crying Colours

January Cook-Off 2022 Division 2

Palindromes Not Allowed, Mean Maximization, Subsegment Divisibility , Merged LIS

January Lunchtime 2022 Division 2

Subarray permutations, Prefix Zeros, Permutation XOR Sum

CodeChef Starters 24 Division 2 (Rated)

Anti Palindrome, Avoid Contact, Divisors and Reciprocals, Yet Another Constructive Problem

February Long 2022 - I, Division 2 (Unrated)

N Queens Puzzle Solved !

Total Problems Solved: 123