wangziji

• Username: 4★wangziji
• Student/Professional:Student
• Institution:High School Affiliated to Renmin University Of China Beijing
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

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

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No. of Contests Participated: 9

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1913 (+87)RatingProvisional
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February Challenge 2021 Division 2(2021-02-15 15:00:02)

Global Rank:   9

Cheated in:   

Ratings System Update

(2021-02-15 15:00:02)

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1913 (-152)RatingProvisional
Rating i Provisional Rating, click to know more

February Challenge 2021 Division 2(2022-12-20 00:00:00)

Global Rank:   9

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?

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Contests (9)

November Challenge 2019 Division 2

Hard Sequence, Smallest Beautiful Number, Weapon Value, Chef and Minimum Colouring, (Challenge) Coloring Triangulations, Physical Exercise

December Challenge 2019 Division 2

Plus Multiply, Binary XOR, Easy Subsequence Selection, That Is My Score!

March Challenge 2020 Division 2

Pintu and Fruits, Ada Bishop 2, XOR Engine

April Challenge 2020 Division 2

Strange Number, Squared Subsequences, Unit GCD, Sell All the Cars, Leaked Answers (Challenge), COVID Pandemic and Long Queue

May Challenge 2020 Division 2

Coronavirus Spread, Isolation Centers

August Challenge 2020 Division 2

Insanely Hard School Exams, Chef and Wedding Arrangements, Smallest KMP, Chef and Linear Chess, Chef Wars - Return of the Jedi, Chefina and Strange Tree, Subsequence Frequency Counting, Another Card Game Problem

September Challenge 2020 Division 1

Chefina and Swap, Find XOR, Divide Candies, Ada Matrix

January Challenge 2021 Division 2

Watching CPL, Fair Elections, Expected Number of SCCs

February Challenge 2021 Division 2

Frog Sort, Team Name, Another Tree with Number Theory, Prime Game, Multiple Games, XOR Sums, Maximise Function

Total Problems Solved: 51