rahul arya

• Username: 4★alien_r
• Country:  India
• Student/Professional:Student
• Institution:Indian Institute of Technology Roorkee Uttarakhand, 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: 37

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February Challenge 2019 Division 2(2019-02-13 15:00:02)

Global Rank:   11582

Cheated in:   

Ratings System Update

(2019-02-13 15:00:02)

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1804 (+233)RatingProvisional
Rating i Provisional Rating, click to know more

February Challenge 2019 Division 2(2022-12-20 00:00:00)

Global Rank:   11582

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 (37)

August Challenge 2013

Little Elephant and Lemonade, Hello Hello, Splitting Candies

August Cook-Off 2013

Chef and The Right Triangles

September Challenge 2013

Cool Guys, Chef and Integers , CAO Stage-1, CAO Stage-2

October Challenge 2013

Helping Lira, Maxim and Dividers

November Challenge 2013

Superpowers of 2, Uncle Johny, Square Digit Squares, Missing some chairs

December Challenge 2013

Magic Pairs

January Challenge 2014

Sereja and Graph, Bon Appetit, Please like me, Chef and Feedback

January Cook-off 2014

Chef and the Cake I

March Cook-Off 2014

Dividing Stamps

July Cook-Off 2014

Copy-Paste, Sum Queries

August Cook-Off 2014

Permutation Shuffle

February Challenge 2014

Make Him Happy, Longest Common Pattern, Little Elephant and Subarrays

March Challenge 2014

Team Split, Walk, Little Chef and Numbers

April Challenge 2014

Farmer Feb, Chef and Digits, Shortest Path in Binary Trees

May Challenge 2014

Compilers and Parsers, Chef-jumping, Chef and Strange Matrix, Stone

June Challenge 2014

Chef and Functions, Chef and Digit Jumps, Chef and Subarray, Guessing Game, Forgot Password

July Challenge 2014

Garden Game, Chef and Frogs, Count Substrings, Reach The Point

August Challenge 2014

Mountain Holidays 2, Chef and Reversing, The Leaking Robot, Cleaning Tables, Chef and Gift

October Challenge 2014

Remy paints the fence, Chef and Ground, Chef and Painting, Magical Girl and Colored Liquid Potions, DevuLand, Dinosaurs and Laddus

November Challenge 2014

Chef and Segment Game, Distinct Characters Subsequence, Chef and Red Black Tree, Let us construct palindrome

December Challenge 2014

Chef and Apple Trees

July Lunchtime 2014

And Operation, Shift The String

November Lunchtime 2014

A wolf, a sheep and cabbage

May Challenge 2017

Chef and Sub Array , Chef and his daily routine, Courses in an university, Median of adjacent maximum numbers

June Challenge 2017

A Good Set, Chef and the Feast, Xenny and Coin Rankings, Triplets, Pairwise union of sets

July Challenge 2017

Chef and Sign Sequences, Whats in the Name, Calculator , IPC Trainers

August Long Challenge 2017

Chef and Rainbow Array, Chef and Mover, Greedy Candidates

December Challenge 2017

Total Diamonds, Chef And his Cake, Penalty Shoot-out, Chef and Hamming Distance of arrays

June Cook-Off 2017

Ada and crayons, SnackUp

July Lunchtime 2017

Find the Maximum Value

January Challenge 2018

K-Concatenation, Maximum Score, Rectangle, String Merging, Partition the numbers

March Challenge 2018 DIV 2

A Big Sale, Mix the Colors, Chef and Glove, Minion Chef and Bananas

April Challenge 2018 Division 2

Chef and Array (Challenge), Weight of Numbers, Highway Crossing, Count Good Prefixes, Average of Pairs, Workers

May Challenge 2018 Division 2

Mighty Friend, Minimum Deletions, Xor Again, Fake Binary Search, Dibs on Fibs

February Challenge 2019 Division 2

Chef and Magical Jars

Total Problems Solved: 130