RAHUL UPADHYAY

• Username: 4★code4sure
• Country:  India
• Student/Professional:Student
• Institution:National Institute of Technology Warangal
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

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

Rating Graph

No. of Contests Participated: 26

Current Ratings Graph Old Ratings Graph

1936 (-50)RatingProvisional
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March Challenge 2016(2016-03-15 15:00:00)

Global Rank:   2011

Cheated in:   

Ratings System Update

(2016-03-15 15:00:00)

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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1936 (+201)RatingProvisional
Rating i Provisional Rating, click to know more

March Challenge 2016(2022-12-20 00:00:00)

Global Rank:   2011

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 (26)

August Challenge 2012

Little Elephant and Bombs

August Cook-Off 2012

Code Crazy Minions

September Challenge 2012

Kisses & Hugs, Racing Horses

October Challenge 2012

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

September Cook-Off 2012

Recipe Reconstruction, Carvans

November Challenge 2012

Coin Flip

January Challenge 2013

The Minimum Number Of Moves, Chef of the Year, Three Different Numbers

February 2013 Challenge

Little Elephant and Cards, Buy1-Get1, Climbing Stairs, Efficient Painting

March Challenge 2013

Random decreasing function, Tourist Translations, Approximately, Fire Escape Routes, Minesweeper

April Challenge 2013

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

May Challenge 2013

Matchsticks, Witua and Math, Tree Counting, Password Cracking Challenge, Name Reduction, Your Name is Mine, Field Trip

June Challenge 2013

Little Elephant and Mouses, Collecting Magical Berries, Just Some Permutations 3, Dessert Wizard, Two k-Convex Polygons, Count Special Matrices, Predictopus, To challenge or not, W String, Lapindromes

August Cook-Off 2013

Chef and The Right Triangles

September Challenge 2013

CAO Stage-1, CAO Stage-2

November Challenge 2013

Chef Game, Superpowers of 2, Yet Another Cute Girl, Sereja and Vectors, Uncle Johny, Square Digit Squares, Missing some chairs

November Cook-off 2013

Am I a Fibonacci Number

December Challenge 2013

Art in Digital Age, Cube Cakes, Chef and Codes, Funny Marbles, Magic Pairs, Reign, Rectangular Queries

December Cook-off 2013

Chef and Girlfriend

January Challenge 2014

Magic Trick, Byteland Tours, Bon Appetit, Please like me, Chef and Feedback

February Challenge 2014

Draughts, Make Him Happy, Longest Common Pattern, Little Elephant and Subarrays, Colored Array, Make It Zero 2

March Challenge 2014

Sereja and Sorting 2, Team Split, Binary Tournament, Walk, Maximum number, GCD condition, Little Chef and Numbers, Mike and Stamps, A Story with Strings

April Challenge 2014

Sereja and Permutation, Counting Matrices, Farmer Feb, Chef and Digits, Divide the Tangerine, Shortest Path in Binary Trees

May Challenge 2014

Little Elephant and Balloons, Compilers and Parsers, Chef-jumping, Chef and Strange Matrix, Stone

August Challenge 2014

Chef and Reversing, The Leaking Robot, Cleaning Tables, Chef and Gift

January Lunchtime 2014

Chef and Shop

March Challenge 2016

Palindromic substrings, maximize the sum

Total Problems Solved: 131