Prakash Arora

• Username: 4★vantaablackk
• Country:  India
• Student/Professional:Other
• CodeChef Pro Plan: No Active Plan. View Details

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Last 6 Months 2026 (Jan-Jun)2025 (Jul-Dec)2025 (Jan-Jun)

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No. of Contests Participated: 25

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1872 (+3)RatingProvisional
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Starters 102 Division 2 (Rated)(2023-09-27 22:00:02)

Global Rank:   410

Cheated in:   

Ratings System Update

(2023-09-27 22:00:02)

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1844 (-1)RatingProvisional
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Starters 69 Division 2 (Rated)(2022-12-20 00:00:00)

Global Rank:   159

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

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Contests (25)

CodeChef Starters 33 Division 4 (Rated)

Monthly Budget, The Cheaper Cab, Non Adjacent Flips, Minimum Cars required

CodeChef Starters 34 Division 4 (Rated)

Binary Mismatch, Expiring Bread, Positive Products, Good Quality Bulbs, Is the Score Consistent, Binary String Xor, Average Array

April Lunchtime 2022 Division 4(Rated)

Lunchtime, Mario and Transformation, Buckets Full of Candies, Mario and Bullet, Pair Pain, Palindrome Pain

Starters 35 Division 3 (Rated)

Dark Light, Chef Find XOR Beautiful, Police and Thief

Starters 36 Division 3 (Rated)

Chef and Bird farm, Presents for Cheffina, Buying Sweets, Reduce to 1

May Cook-Off 2022 Division 2 (Rated)

Doubled Distances

Starters 37 Division 2 (Rated)

Beat the Average, Infernos, Maximum OR Minimum

Starters 38 Division 2 (Rated)

A Bit Easy, Good Pairs, Circular Track

May Lunchtime 2022 Division 2 (Rated)

Maximum Pairwise Modular Sum, Bucket and Water Flow

Starters 39 Division 2 (Rated)

Compress the Video, Closest Vowels, Even Subarray XOR

Starters 40 Division 2 (Unrated)

Infinity Staircase

Starters 41 Division 2 (Rated)

Equal Integers, Remove and Add, Is this priority or parity!, Path Parity

June Cook-Off 2022 Division 2 (Rated)

Simple XOR, Break the Stick

Starters 42 Division 2 (Rated)

Maximise Set Bits , Minimum or Maximum, Divisible by 3

Starters 43 Division 2 (Rated)

Make them Equal, The Optimal Pairs, Distinct Palindrome

June Lunchtime 2022 Division 2 (Rated)

XOR Times 2 Is Sum, Equal by XORing, Max Shift After XOR, Zero Ones Equal One Zeros

July Lunchtime 2022 Division 2 (Rated)

Easy Pronunciation, Yet Another Palindrome Making Problem

Starters 48 Division 2 (Rated)

Fill The Grid, Make Palindrome 2, Positive array, Accurate XOR

Starters 51 Division 2 (Rated)

Different Medians, Copy and Paste, Adjacent Xors, Split N

Starters 55 Division 2 (Rated)

Balls and Boxes, Mean and Median, OR Tuples

Starters 60 Division 2 (Rated)

Distinct Numbers, Red Green Grids, Yet Another Palindrome Problem, Palindrome Flipping

Starters 67 Division 2 (Rated)

Counting Problem, Expensive Steps , Maximum Angriness

Starters 69 Division 2 (Rated)

Akash and Dinner, Distinct Sequence, Longest Subarray

Starters 101 Division 2 (Rated)

Minimize Xor Difference, Warrior Chef, Lockpicking Chef

Starters 102 Division 2 (Rated)

Parity Permutation, Bit Play, Array Sum

SQL Contest (Unrated)

First Problem on SQL

Total Problems Solved: 209