PengyiZhai

• Username: 4★appreciate
• Country:  China
• Student/Professional:Other
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

Last 6 Months 2026 (Jan-Jun)2025 (Jul-Dec)2025 (Jan-Jun)

Rating Graph

No. of Contests Participated: 2

Current Ratings Graph Old Ratings Graph

1948? (+301)RatingProvisional
Rating i Provisional Rating, click to know more

Starters 39 Division 4 (Rated)(2022-05-18 23:00:06)

Global Rank:   42

Cheated in:   

Ratings System Update

(2022-05-18 23:00:06)

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?

1948? (+470)RatingProvisional
Rating i Provisional Rating, click to know more

Starters 39 Division 4 (Rated)(2022-12-20 00:00:00)

Global Rank:   42

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 (2)

Jump from 2* to 3*

6%

Level up from 1* to 2*

3%

Contests (2)

May Lunchtime 2022 Division 4 (Rated)

Apples and Oranges, Maximum Pairwise Modular Sum, Equal After And, How many unattempted problems, Problems in your to-do list, Bucket and Water Flow

Starters 39 Division 4 (Rated)

Recent contest problems, Chess Ratings, A or B, My very 1st contest!, Closest Vowels, Minimize Blocked Roads, Compress the Video

Starters 40 Division 3 (Unrated)

Difficulty Rating Order, Max Value of MST, Infinity Staircase, Or Permutation, Good Pairs, Take discount or Not

Total Problems Solved: 33