Walden Wang

• Username: 3★waldenwang4
• Country:  United States
• Student/Professional:Student
• Institution:Columbia University in the City of New York USA
• 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

1625 (-29)RatingProvisional
Rating i Provisional Rating, click to know more

Starters 36 Division 2 (Rated)(2022-04-27 23:00:02)

Global Rank:   1378

Cheated in:   

Ratings System Update

(2022-04-27 23:00:02)

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?

1625 (-123)RatingProvisional
Rating i Provisional Rating, click to know more

Starters 36 Division 2 (Rated)(2022-12-20 00:00:00)

Global Rank:   1378

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)

CodeChef Starters 24 Division 3 (Rated)

Badminton Serves

CodeChef Starters 25 Division 3 (Rated)

Points and Lines, Chef and His Fruit Stand, Fit in Data Type

February Cook-Off 2022 Division 3

Lazy Salesman, Peaceful Party, Prefix Permutation

February Long 2022 - II, Division 3 (Rated)

Avoid Fixed Points, World Chess Championship, Chef and NextGen, Xor Palindrome

CodeChef Starters 26 Division 3 (Rated)

Count the Notebooks, Control the Pollution, Hostel Room, Careless Chef

CodeChef Starters 27 Division 3 (Rated)

Distinct Binary Strings, Too many items, Blackjack, The product mystery

February Lunchtime 2022 Division 3

Magnet Sort, Chessboard Distance, Watching Movies at 2x, Parallel Processing, Good Program, Four Equidistant Points on a Grid, Battery Low

CodeChef Starters 28 Division 2 (Rated)

Chef and Instant Noodles, Permutation Xority, Self Defence Training, Car Choice, Qualify the round, Count the Holidays

March Long One 2022, Division 2 (Unrated)

Akash and Missing Class, Wordle, Bath in Winters, Discus Throw, Exact Marks, Substring of a Substring, Subarray XOR, Akash and Function

CodeChef Starters 29 Division 2 (Rated)

String protocol, Plusle and Minun on Array, Fill the Bucket, Tyre problem, Decomposition Reaction

March Long Two 2022, Division 2 (Unrated)

Same Parity Swaps in Binary Strings, The Rating Dilemma, The Three Topics, Increase IQ, Chef and Races, Missing Numbers

CodeChef Starters 30 Division 2 (Rated)

Gift Shop and Coupon, Chef and Water Bottles, Swapping Chefs Way, Chef and Chocolates, Balanced Reversals

March Cook-Off 2022 Division 2

Alternating Divisibility, Equal Mex Splitting, Janmansh at Fruit Market, Fixed Weight

CodeChef Starters 31 Division 2 (Rated)

XOR and AND, Alternating String, Sign Moves, Cup Finals, The Unchanging OR, Group Assignment, Economics Class

CodeChef Starters 32 Division 2 (Rated)

Flip Sorting, Course Registration, Finding Shoes, Binary String Cost, Maximize the Minimum, Volume Control

April Cook-Off 2022 Division 2

Chef Goes Shopping, Sticks and Rectangles, Funny Hand, Email Reminders

CodeChef Starters 33 Division 2 (Rated)

Non Adjacent Flips, Make Them Equal, Minimum Cars required, Monthly Budget, The Cheaper Cab, Broken Life, Distinct Dilemma

CodeChef Starters 34 Division 2 (Rated)

Average Array, Is the Score Consistent, Good Quality Bulbs, Expiring Bread

Starters 35 Division 2 (Rated)

Jump to Sibling, Dark Light, Admins and Shopping, Water Requirement, Police and Thief, Jenga Night

Starters 36 Division 2 (Rated)

Presents for Cheffina

Total Problems Solved: 102