kaifeng zhou

• Username: 5★lazier
• Student/Professional:Student
• Institution:Hunan University of Science and Technology
• 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: 16

Current Ratings Graph Old Ratings Graph

2176 (+48)RatingProvisional
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January Challenge 2014(2014-01-13 15:00:00)

Global Rank:   88

Cheated in:   

Ratings System Update

(2014-01-13 15:00:00)

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2176 (+80)RatingProvisional
Rating i Provisional Rating, click to know more

January Challenge 2014(2022-12-20 00:00:00)

Global Rank:   88

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 (16)

March 2012 Challenge

Home Delivery, Spoon in Matrix, Free Shuttle Service

April Challenge 2012

Parallel Computing, Fit to Play, Double Strings, Stacking Pancakes, Greatest Dumpling Fight, Similar Graphs

May Challenge 2012

Lucky lucky number, A Home for Chef, Remember the recipe, Divisible Pairs, Jewels and Stones, Little Elephant and Median, Killing Gs

July Challenge 2012

Chef's Dream, Gift Rift, Restaurant Rating

August Challenge 2012

Little Elephant and Bombs, Range of Data, Delivery Boy

December Challenge 2012

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

January Challenge 2013

Little Elephant and Alcohol, Hotel Balifornia, The Minimum Number Of Moves, End Of The World, A Fence for Byteland, Chef of the Year, Three Different Numbers

March Challenge 2013

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

April Challenge 2013

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

May Challenge 2013

Matchsticks, Witua and Math, Name Reduction, Your Name is Mine, Field Trip

June Challenge 2013

Collecting Magical Berries, Lapindromes, W String, To challenge or not, Predictopus, Dessert Wizard, Just Some Permutations 3, Little Elephant and Mouses

July Challenge 2013

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

August Challenge 2013

The Number Of Solutions, Splitting Candies, Prime Distance On Tree, Deleting numbers, Sereja and Ballons, Chef and Segments, Save The Princess, Hello Hello, Music & Lyrics, Little Elephant and Lemonade

September Challenge 2013

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

January Challenge 2014

Magic Trick, Sereja and Graph, ForbiddenSum, Meteor, Bon Appetit, Please like me, Chef and Feedback

Total Problems Solved: 104