Harry Zhang

• Username: 4★sugusor
• Country:  China
• Student/Professional:Student
• Institution:Fudan University
• CodeChef Pro Plan: No Active Plan. View Details

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

Rating Graph

No. of Contests Participated: 18

Current Ratings Graph Old Ratings Graph

1820 (-39)RatingProvisional
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October Challenge 2015(2015-10-12 15:00:00)

Global Rank:   2948

Cheated in:   

Ratings System Update

(2015-10-12 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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1820 (+78)RatingProvisional
Rating i Provisional Rating, click to know more

October Challenge 2015(2022-12-20 00:00:00)

Global Rank:   2948

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 (18)

November Challenge 2012

Coin Flip

March Challenge 2013

Random decreasing function, Fire Escape Routes, Minesweeper

September Challenge 2013

Little Elephant and Exams, Cool Guys, Project Spoon, CAO Stage-1

October Challenge 2013

CAO Stage-3, Yet Another Nice Girl

March Challenge 2014

A Story with Strings, Chef and Graph Queries

April Challenge 2014

Farmer Feb, Shortest Path in Binary Trees, Divide the Tangerine, Chef and Digits, Cards, bags and coins, Counting Matrices

May Challenge 2014

Little Elephant and Balloons

July Challenge 2014

Little Elephant and Painting, Garden Game, Chef and Frogs, Count Substrings, Reach The Point, Dish Owner

August Challenge 2014

Chef and Gift, The Leaking Robot, Little Elephant and T-Shirts, Chef and Reversing

September Challenge 2014

Sereja and Bubble Sort, Chef and Swaps, Chef and sequence, Flooring

November Challenge 2014

Distinct Characters Subsequence

January Lunchtime 2014

Chef and Numbers, Chef and Way, Chef and String, Chef and Shop

February Lunchtime 2014

Sereja and ASum, Sereja and D, Sereja and Arrays

July Lunchtime 2014

And Operation

February Challenge 2015

Chef and Chain, Chef and Equality, Xor Matrix, Let us play with rank list, Chef and Strings, Chef and Strange Formula, Time to Study Graphs with Chef

May Challenge 2015

Chef and new recipe

July Challenge 2015

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

October Challenge 2015

Count Subarrays, Who dares to be a millionaire

Total Problems Solved: 70