Zhenyang Dai

• Username: 6★daizhenyang
• Student/Professional:Professional
• Organisation:Google
• 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

2336 (+26)RatingProvisional
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April Cook-Off 2015(2015-04-20 00:30:00)

Global Rank:   31

Cheated in:   

Ratings System Update

(2015-04-20 00:30:00)

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2336 (+72)RatingProvisional
Rating i Provisional Rating, click to know more

April Cook-Off 2015(2022-12-20 00:00:00)

Global Rank:   31

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)

October Long Contest 2011

Repeated String, Dish Distribution

January 2012 Challenge

Gap Filler Game

March 2012 Challenge

Longest Weird Subsequence

March Cook-Off 2012

Ciel Numbers I, Ciel Numbers II, Ciel and a new island

April Challenge 2012

Double Strings, Stacking Pancakes, Fit to Play

May Challenge 2012

Little Elephant and Median, Jewels and Stones

September Cook-Off 2012

Prime Permutations

January Cook-Off 2013

Minimum Distance, Many Chefs

March Challenge 2013

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

March Cook-off 2013

The Ball And Cups, Palindrome, Level Of Difference

April Challenge 2013

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

April Cook-Off 2013

Andrew and the Birthday, Andrew and the Meatballs, Andrew and the Strings, Andrew and the Balls, Andrew and the Meatballs again

May Challenge 2013

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

May Cook-off 2013

Subtraction Game 1, Subtraction Game 2

Lunch Time July 2013

Cooking dishes, Paying optimally, Optimal Trip

August Challenge 2013

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

September Challenge 2013

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

March Cook-Off 2014

Game of Divisors, ABC-Strings, 3-Palindromes, Dividing Stamps

May Cook-Off 2014

Divide the Cake, Ups and Downs

June Cook-Off 2014

Knapsack Problem, Painting, Counting Flags

July Cook-Off 2014

Copy-Paste, Sum Queries, Friends

February Cook-Off 2015

Parenthesis with Maximum Sum Subarray, Fit Squares in Triangle, Strategy for the World Cup

April Cook-Off 2015

Lucky Fives, Equality, Version Control System

Total Problems Solved: 87