Rahul Chakraborty

• Username: 3★rahul_chk
• Country:  India
• Student/Professional:Professional
• Organisation:Amazon Development Center, Bangalore, 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: 32

Current Ratings Graph Old Ratings Graph

1727 (-41)RatingProvisional
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November Challenge 2020 Division 2(2020-11-16 15:00:02)

Global Rank:   8378

Cheated in:   

Ratings System Update

(2020-11-16 15:00:02)

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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1727 (+217)RatingProvisional
Rating i Provisional Rating, click to know more

November Challenge 2020 Division 2(2022-12-20 00:00:00)

Global Rank:   8378

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 (32)

November Cook-Off

Subanagrams

February 2012 Challenge

Lucky Long, Count of Maximum, Word Counting

March 2012 Challenge

Free Shuttle Service, Spoon in Matrix, Home Delivery

April Challenge 2012

Fit to Play, Double Strings, Stacking Pancakes, Greatest Dumpling Fight

May Challenge 2012

Jewels and Stones, Lucky lucky number, Remember the recipe, A Home for Chef

May Cook-Off 2012

Little Elephant and Strings

June Challenge 2012

Little Elephant and Candies, Arranging Cup-cakes

July Challenge 2012

Chef's Dream, My Fair Coins, Gift Rift

August Challenge 2012

Little Elephant and Bombs, Lucky Driving, Range of Data, Delivery Boy

September Challenge 2012

Three is Crowd, Racing Horses, Kisses & Hugs

October Challenge 2012

Little Elephant and Order, Fierce Battles, Event Organizer, The New Scheme, Need More Diamonds

October Cook-Off 2012

Buying Sweets, Tennis Tournament

November Challenge 2012

Sridhar Likes Travelling, Coin Flip, Delicious Dishes, Lucky Balance

December Challenge 2012

Granama Recipes, Book Exercises, Magic Rankings, The Uncountable Ways, Pizza Delivery

December Cook-Off 2012

Packaging Cupcakes, Reversing directions

January Challenge 2013

Three Different Numbers, Chef of the Year, End Of The World, Little Elephant and Alcohol, The Minimum Number Of Moves

January Cook-Off 2013

Many Chefs, Minimum Distance

February 2013 Challenge

Little Elephant and Cards, Buy1-Get1, Climbing Stairs

March Challenge 2013

Tourist Translations, Approximately, Fire Escape Routes

April Challenge 2013

Maximum Weight Difference, Levy Conjecture, Barcelona Gameplay Tactics, Little Elephant and Music

May Challenge 2013

Matchsticks, Name Reduction, Your Name is Mine

June Challenge 2013

Dessert Wizard, Predictopus, Lapindromes

October Cook-Off 2013

Polo the Penguin and the Numbers, Polo the Penguin and the Test

June Challenge 2014

Guessing Game, Chef and Subarray

July Challenge 2014

Little Elephant and Painting, Garden Game, Chef and Frogs, Chef and Rectangle Genome, Count Substrings, Reach The Point, Dish Owner

August Challenge 2014

Chef and Reversing, The Leaking Robot, Chef and Gift

September Challenge 2014

Chef and Left-Right, Fun with Rotation, Chef and Rainbow Array - 2

October Challenge 2014

Chef and Ground, Magical Girl and Colored Liquid Potions, DevuLand, Dinosaurs and Laddus

January Challenge 2015

Sereja and Votes, One Dimensional Kingdoms

July Challenge 2016

Andrash and Stipendium

March Challenge 2020 Division 2

XOR Engine, Ada Bishop 2, Pintu and Fruits

November Challenge 2020 Division 2

Restore Sequence

Total Problems Solved: 134