
Jeffrey Zhang
- 5★cleanser
United States
- Student
- Rutgers University
- No Active Plan. View Details
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Ratings System Update
(2024-05-15 22:00:00)Ratings System Update
(2022-12-20 00:00:00)Learning Paths (0)
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Practice Paths (0)
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Contests (40)
July Cook-Off 2022 Division 3 (Rated)
Permutation And Median, K-MEX, Xor Permutation, High Accuracy
June Cook-Off 2022 Division 4 (Rated)
Simple XOR, Rating Improvement, Playlist, Break the Stick, First and Last
June Long One 2022 Division 4 (Rated)
Reduce to zero, Chairs Requirement, Subscriptions, Divisible by i , Alternate Additions, Equal Strings
June Lunchtime 2022 Division 4 (Rated)
Zero Ones Equal One Zeros, The Lost Array, It is My Serve, Too many Floors, Determine the Score, Equal by XORing
June Long Two 2022 Division 3 (Rated)
Count the ACs, Make all equal using Pairs, AP Grid, Complementary Strand in a DNA, Reversal Sorting, Strong Elements
Starters 45 Division 3 (Rated)
Even Equal Odd, Xor and Multiply, Chef and his Apps, Retrieve the Array, Adjacent Sum Parity, Change Row and Column Both
July Long One 2022 Division 2 (Unrated)
Journey of the Knight, Game of Piles Version 1, Slow Solution
Starters 46 Division 2 (Rated)
Prime Xor, Vowel Anxiety, Array sorting, Sort the String
Starters 47 Division 2 (Rated)
Copy and Push Back, Similar Heights, End Sorted
July Lunchtime 2022 Division 2 (Rated)
Easy Pronunciation, Yet Another Palindrome Making Problem, Maximum Median Matching, Largest Family
Starters 48 Division 2 (Rated)
Fill The Grid, Make Palindrome 2, Positive array
July Long Two 2022 Division 2 (Unrated)
Maximize Difference, Concat Sort, To Divide or Not To Divide, Sum of Product 1
Starters 49 Division 2 (Rated)
Split The String, High Frequency, Monks, Valid Minimum
Starters 50 Division 2 (Rated)
Air Blimp, Permutation GCD, Sum Product Segments, Average Permutation
Starters 51 Division 2 (Rated)
Adjacent Xors, Split N, Copy and Paste, Different Medians
August Lunchtime 2022 Division 2 (Rated)
Easy Permutation, Array Equality, Tree Coloring, Subtract 12 Operation
Starters 53 Division 2 (Rated)
Black&White Ring Game, Make A and B equal, Queen Blocks
Starters 64 Division 2 (Rated)
Luigi and Uniformity, Range Assign, Number of Distinct Elements Minimize, Prime Factor Division, Distinct Neighbours
Starters 65 Division 1 (Rated for 5 & 6 stars)
Nahaane Jaa, Binod, Gormint Aunty
Starters 66 Division 1 (Rated till 5-stars)
Good Binary Strings, Palindrome by Splitting, Palindrome In Making
Starters 67 Division 2 (Rated)
Maximum Angriness, Expensive Steps , Counting Problem
Starters 68 Division 2 (Rated)
Boring String, XOR Product, Expense List, Interesting Array, Make Money
Starters 69 Division 1 (Rated till 6-stars)
Distinct Sequence, Longest Subarray
Starters 70 Division 1 (Rated till 6-stars)
Prime Reversal, Frequency Array Retrieval
Starters 71 Division 2 (Rated)
Pet Store, Flip the Prefix, Expected Sum, Maximizing LCS
Starters 72 Division 1 (Rated till 5-Stars)
N Triplets
Starters 73 Division 2 (Rated)
Consecutive Xor, Append for OR
Starters 74 Division 2 (Rated)
Lcm hates Gcd, Minimal Inversions, Odd Even Binary String
Starters 79 Division 2 (Rated)
One Stone or Two Stones, Add smallest prime factor, Distinct Opposite Sums
Starters 80 Division 2 (Rated)
Permutation Subsequence, c8kbf and Tree, Prefix Permutation, Equal Elements
Starters 81 Division 2 (Unrated)
Divide Pages
Starters 82 Division 2 (Rated)
Find eX, Make A-B Same, Difference Matrix, MIN To MAX
Starters 84 Division 2 (Rated)
SUM OR, Max count of 1, Digit Operation, Max Binary, Chef And Adjacent Sums
Starters 85 Division 1 (Rated till 6 stars)
Crazy Bishops on Chessboard, Efficient PAN Linking, GCD Queries, TripTastic
Starters 86 Division 1 (Rated for All)
Minimum Operation, String Game , Largest Y
Starters 87 Division 1 (Rated till 6 Stars)
Inversions of subsequences, AB plus C
Starters 83 Division 2 (Rated)
Construct String, Order by XOR
Starters 88 Division 1 (Rated till 6 Stars)
Maximum And Or, Chef and Asteroids
Starters 90 Division 1 (Rated till 6 Stars)
Crushed Apples and a Balance Scale, Sum of Goodness, Printing Binary Array, Anti Palindrome
Starters 91 Division 1 (Rated till 6 Stars)
XOR & Sum, Odd GCD Permutation, Chef Odd, Maximum Sum Permutation
Starters 92 Division 1 (Rated till 6 Stars)
Rectangular Tiling, Dividing into Groups, Beautification of array, Distance Coloring
Starters 133 Division 1 (Rated till 6-Star)
ABC Conjecture 3, Powered Parameters, Too Far For Comfort (Easy Version)
Starters 134 Division 1 (Rated till 6-Stars)
Origin, Prison Escape, 3out1in