Steven Zhang

• Username: 2★joker23
• Country:  United States
• Student/Professional:Student
• Institution:Georgia Institute of Technology
• 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: 18

Current Ratings Graph Old Ratings Graph

1549 (-20)RatingProvisional
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September Challenge 2015(2015-09-14 15:00:00)

Global Rank:   4307

Cheated in:   

Ratings System Update

(2015-09-14 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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1549 (+66)RatingProvisional
Rating i Provisional Rating, click to know more

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

Global Rank:   4307

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)

February Challenge 2014

Longest Common Pattern, Little Elephant and Subarrays, Colored Array, Make Him Happy

March Challenge 2014

Walk, Little Chef and Numbers

April Challenge 2014

Farmer Feb, Shortest Path in Binary Trees

May Challenge 2014

Compilers and Parsers, Chef-jumping

June Challenge 2014

Chef and Subarray, Guessing Game

July Challenge 2014

Count Substrings

September Challenge 2014

Fun with Rotation, Chef and Left-Right

November Challenge 2014

Distinct Characters Subsequence, Let us construct palindrome

December Challenge 2014

Chef and Apple Trees

January Challenge 2015

Chef and Stones, Sereja and Votes, One Dimensional Kingdoms

February Challenge 2015

Chef and Chain, Let us play with rank list, Chef and Equality

March Challenge 2015

Chef and Notebooks

April Challenge 2015

Chef and Interview, Broken Telephone

May Challenge 2015

Chef and new recipe

September Challenge 2015

Count Steps in Matrix

Total Problems Solved: 54