caoyu

• Username: 5★cy1013
• Country:  China
• Student/Professional:Student
• Institution:Changchun University of Science and Technology
• CodeChef Pro Plan: No Active Plan. View Details

Activity Heat Map

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

Rating Graph

No. of Contests Participated: 7

Current Ratings Graph Old Ratings Graph

2043 (+82)RatingProvisional
Rating i Provisional Rating, click to know more

January Challenge 2018(2018-01-15 15:00:00)

Global Rank:   284

Cheated in:   

Ratings System Update

(2018-01-15 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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2043 (-46)RatingProvisional
Rating i Provisional Rating, click to know more

January Challenge 2018(2022-12-20 00:00:00)

Global Rank:   284

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)

Practice Paths (1)

Practice for ZCO and INOI

1%

Contests (7)

April Challenge 2014

Farmer Feb

June Challenge 2014

Chef and Subarray, Guessing Game

July Challenge 2015

Addition and Multiplication, Bread, MasterChef, Na2a and lucky stone, Chef and Cube

August Lunchtime 2016

Studying Alphabet, Lock-Free Stack

June Challenge 2017

Chef and the Feast, Pairwise union of sets, Triplets, Xenny and Coin Rankings, A Good Set, Chef and Prime Queries

IOPC 2017 (Rated)

The Birthday Tears, Max Out, Christmas Time

January Challenge 2018

(Challenge) Chef and Palindromes, K-Concatenation, Maximum Score, Rectangle, String Merging, Partition the numbers

Total Problems Solved: 61