Reid Rizvi Rahman

• Username: 4★zer0nes
• Country:  India
• Student/Professional:Student
• Institution:Indian Institute of Technology Kanpur
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

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

Rating Graph

No. of Contests Participated: 10

Current Ratings Graph Old Ratings Graph

1890 (-12)RatingProvisional
Rating i Provisional Rating, click to know more

January Challenge 2015(2015-01-12 15:00:00)

Global Rank:   1678

Cheated in:   

Ratings System Update

(2015-01-12 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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1890 (+102)RatingProvisional
Rating i Provisional Rating, click to know more

January Challenge 2015(2022-12-20 00:00:00)

Global Rank:   1678

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 (10)

February 2013 Challenge

Buy1-Get1, Climbing Stairs, Little Elephant and Cards

March Challenge 2013

Tourist Translations, Approximately, Fire Escape Routes

April Challenge 2013

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

May Challenge 2013

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

July Challenge 2013

Galactik Football, The Probability Of Winning, Chef and Walking on the rectangle , Count K-Primes, Circle of death

August Challenge 2013

Little Elephant and Lemonade, Splitting Candies, Deleting numbers, Chef and Segments, Save The Princess, Hello Hello, The Number Of Solutions

September Challenge 2013

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

March Challenge 2014

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

January Challenge 2015

Chef and A Large Permutation, Chef and Stones, Sereja and Votes, One Dimensional Kingdoms, Gcd Queries

Total Problems Solved: 80