Doc Zhang

• Username: 5★ahdoc
• Student/Professional:Student
• Institution:Home Schooling
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

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

Rating Graph

No. of Contests Participated: 3

Current Ratings Graph Old Ratings Graph

2117? (+188)RatingProvisional
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January Lunchtime 2019 Division 1(2019-01-26 22:30:00)

Global Rank:   18

Cheated in:   

Ratings System Update

(2019-01-26 22:30:00)

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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2117? (+111)RatingProvisional
Rating i Provisional Rating, click to know more

January Lunchtime 2019 Division 1(2022-12-20 00:00:00)

Global Rank:   18

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 (3)

December Lunchtime 2018 Division 2

Print Pattern, Choosing from Buckets, Drawing Lines, Age Calculator

January Challenge 2019 Division 2

Yet Another Problem About Sequences, Different Neighbours, Lucky Number Game, Distinct Pairs, Chef and Modulo Game, Fancy Quotes, A Pizza Slice

January Lunchtime 2019 Division 1

Distances, Wanderer, Rooks, Mouse Meets Cheese

Total Problems Solved: 17