PRABHAT KUMAR

• Username: 4★prabhuon786
• Country:  India
• Student/Professional:Student
• Institution:Indian Institute of Technology Dhanbad
• CodeChef Pro Plan: No Active Plan. View Details

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

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No. of Contests Participated: 23

Current Ratings Graph Old Ratings Graph

1820 (+41)RatingProvisional
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Starters 62 Division 2 (Rated)(2022-10-26 23:00:02)

Global Rank:   75

Cheated in:   

Ratings System Update

(2022-10-26 23:00:02)

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1820 (+2)RatingProvisional
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Starters 62 Division 2 (Rated)(2022-12-20 00:00:00)

Global Rank:   75

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?

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Contests (23)

February Challenge 2021 Division 3

Chef and Meetings, Highest Divisor

March Cook-Off 2021 Division 2

Consecutive Deletions, Matrix XOR, Guess the Number

February Lunchtime 2021 Division 3

Daanish and Problems, Palpal Strings, Coprime Range

CodeChef Div 3 Rated Contest 2021 Division 3

Rectangle, Chef and Patients, Body Mass Index, Total Score

March Challenge 2021 Division 2

Interesting XOR!, College Life 4, Space Arrays

March Lunchtime 2021 Division 2

Dinner by Candlelight, Racing, Lunchtime

April Challenge 2021 Division 2

Chef and Dice

May Lunchtime 2021 Division 3

Birthday Gifts, Charges, Hoop Jump, Tom And Jerry 1

May Challenge 2021 Division 2 (Rated)

Xor Equality

June Cook-Off 2021 Division 2

Binary String on Steroids, The Wave

July Cook-Off 2021 Division 2

XOR-ORED, Mod Equality

July Lunchtime 2021 Division 2

Beautiful Pairs, Array Rotation Returns

August Challenge 2021 Division 2 (Unrated)

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

CodeChef Starters 9 Division 2 (Unrated)

Black cells in a chessboard, Large Square, Bus full of passengers

CodeChef Starters 10 Division 2 (Rated)

Magical Flips, Maximise the Subsequence Sum, Remove One Element

AlgoManiac - Code For Future Division 2 (Unrated)

Say No To Drugs, The Rumbling, The Old Saint And Three Questions, Meet In The Median

SnackDown 2021 - Online Qualifiers

Lucky Number

CodeChef Starters 11 Division 2 (Rated)

Positive Spewing, The Grid Fill Problem, Obtain the Sum

October Lunchtime 2021 Division 2

Chef and Water Car, Exactly N plus 1 Values

SnackDown 2021 - Online Round 1A

Round Robin Ranks , Dance Moves, Min Max LCM

SnackDown 2021 - Online Round 1B

Queens Placement , Largest Laddu, Help Nishant

December Challenge 2021 Division 2 (Unrated)

Valleys and Hills, List of Lists

January Long 2022 - I, Division 2 (Unrated)

Prime in a binary string, Retrieve back the Array

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

CodeChef Starters 24 Division 2 (Rated)

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

February Long 2022 - I, Division 2 (Unrated)

Binary Base Basics, Bitwise Blend, Remove Adjacent, N Queens Puzzle Solved !

CodeChef Starters 25 Division 2 (Rated)

Building Towers, Equal MEX, Points and Lines

February Long 2022 - II, Division 2 (Unrated)

Avoid Fixed Points, Sequence GCD, Bitwise swaps, Xor Palindrome

July Long Two 2022 Division 2 (Unrated)

Maximize Difference, To Divide or Not To Divide, Sum of Product 1

August Long 2022 Division 2 (Unrated)

XOR with smallest element, Hello Equation, Two Trains

August Lunchtime 2022 Division 2 (Rated)

Easy Permutation, Array Equality

Starters 55 Division 2 (Rated)

Non Zero Xor, Balls and Boxes, Mean and Median, OR Tuples

Starters 59 Division 2 (Rated)

Maximum Subarray , Suspense String, Confusing Concatenations

October Long 2022 Division 2 (Unrated)

Binary Substituition, Single Operation Part 1, Single Operation Part 2

Starters 62 Division 2 (Rated)

Joint XOR, Sorted Substrings, Make Multiple, Final Sum, Pythagorean Pair

Total Problems Solved: 151