Kevin Chen

• Username: 5★binonun1
• Country:  United States
• Student/Professional:Professional
• Organisation:Palantir Technologies
• 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: 17

Current Ratings Graph Old Ratings Graph

2027 (+66)RatingProvisional
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September Challenge 2019 Division 2(2019-09-16 15:00:02)

Global Rank:   19

Cheated in:   

Ratings System Update

(2019-09-16 15:00:02)

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2027 (+173)RatingProvisional
Rating i Provisional Rating, click to know more

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

Global Rank:   19

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 (17)

July 2009 (Contest V)

Quadratic Equations, Lights Off, Sums in a cuboid, Lights Off, Revisited!, Buggy algorithm, The White Knight, Johny the farmer

August 2009 (Contest VI)

Magic sequence, Bytelandian Robots, Curry Stained Napkin, Golf course, Crystals, Divide and conquer

January 2010 (Contest XII)

Lost Primes

January 2011 Challenge

Restaurant Expansion, Count Relations, Flu Shot Lineup, Chess Pushing Game

March Challenge 2013

Tourist Translations, Approximately, Fire Escape Routes

April Challenge 2013

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

May Challenge 2013

Matchsticks, Witua and Math, Juno Puzzle for May, Name Reduction, Your Name is Mine, Field Trip

July Challenge 2013

Circle of death, Sereja and Sorting, Count K-Primes, Chef and Walking on the rectangle , Furik and Rubik and Sub Array, Galactik Football, Mountain Holidays, Needles and Pins, Across the River, The Probability Of Winning

August Challenge 2013

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

September Challenge 2013

Little Elephant and Exams, Cool Guys, Chef and Integers , Project Spoon, CAO Stage-1, CAO Stage-2

October Challenge 2013

Helping Lira, Yet Another Nice Girl, Sereja and Transformation, Little Elephant and Bamboo, Maxim and Dividers

March Challenge 2014

Team Split, Binary Tournament, Walk, Little Chef and Numbers, Mike and Stamps, A Story with Strings

June Challenge 2014

Guessing Game, Chef and Subarray

February Challenge 2016

Chef-Detective

September Challenge 2019 Division 2

Chef and Good Subsequences, Easy Fibonacci, Biladerim Icin, Fuzzy Linear Combinations, Doofish Set, Chef Designed a Network, Chef and Interesting Subsequences

Total Problems Solved: 80