Ian Zhang

• Username: 3★izhang05
• Country:  United States
• Student/Professional:Student
• Institution:Newark Academy Livingston, New Jersey, United States
• 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: 13

Current Ratings Graph Old Ratings Graph

1671 (+53)RatingProvisional
Rating i Provisional Rating, click to know more

November Challenge 2021 Division 3 (Rated)(2021-11-15 15:00:00)

Global Rank:   12

Cheated in:   

Ratings System Update

(2021-11-15 15:00:00)

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?

1671 (-65)RatingProvisional
Rating i Provisional Rating, click to know more

November Challenge 2021 Division 3 (Rated)(2022-12-20 00:00:00)

Global Rank:   12

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)

None

Practice Paths (0)

None

Contests (13)

April Challenge 2020 Division 2

Unit GCD, Strange Number, COVID Pandemic and Long Queue, Sell All the Cars

May Challenge 2020 Division 2

Coronavirus Spread, Isolation Centers

April Lunchtime 2020 Division 2

Another Birthday Present!, Chef in Fantasy League

May Lunchtime 2020 Division 2

Weird Walk, Lost Weekends

July Challenge 2020 Division 2

Missing a Point, Chef and Strings, Chef and Card Game, Chefina and Swaps, Ada King

August Challenge 2020 Division 2

Chef Wars - Return of the Jedi, Another Card Game Problem, Chef and Linear Chess, Smallest KMP, Chef and Wedding Arrangements

September Challenge 2020 Division 2

Coronavirus Spread 2, A Problem on Sticks, Chefina and Swap, Ada Matrix

June Cook-Off 2020 Division 2

Cache Hits

June Lunchtime 2020 Division 2

Maximum AND, Chef and Demonetisation, Increasing Decreasing

RECode 12.0 (Rated for all)

Chef and String, Chef and Numbers

October Challenge 2020 Division 2

Covid Run, Chef and Easy Queries

June Challenge 2021 Division 3 (Rated)

Bella ciao, Summer Heat

November Challenge 2021 Division 3 (Rated)

Flip or Compress, Functional Array, Wildcard Replacement, Xor Equation, Weird Palindrome Making, Hill Sequence, Equal Coins, Which Fuel is Cheaper, Maximise the bridges

Total Problems Solved: 74