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Seb's Whiteboard
  • 👨‍💻Welcome, I'm Sebastien St Vil
  • Extras
    • Gradient Descent
    • How I learned Java
    • Machine Learning by Andrew Ng
  • Projects
    • 📉Backtest Equity Trading with SMA Strategy
    • Wellington GA Lab
    • Stock analysis
    • 📈Time Series Regression-based Trading Strategy
  • Arrays & Strings
    • Best Time to Buy and Sell Stock II
    • Online Stock Span
    • Implement strStr()
    • 2Sum
    • 3Sum
    • 3Sum Closest
    • 4Sum II
    • Set Matrix Zeroes
    • Group Anagrams
    • Longest Substring Without Repeating Characters
    • Remove Duplicates from Sorted Array
    • Move Zeroes
    • Valid Sudoku
    • Rotate Image
    • First Unique Character in a String
    • Design a Circular Queue
    • Longest Common Prefix
  • Binary Tree
  • Second Minimum Node In a Binary Tree (671)
  • Design
  • LRU Cache
  • Min Stack (155)
  • Sorting & Searching
    • Merge Sorted Array (88)
    • First Bad Version
  • Math
    • Power of Three (326)
    • Power of Two (231)
    • Count Prime (204)
    • Roman to Integer (13)
    • Fizz Buzz (412)
    • Count-and-Say
  • Dynamic Programming
    • Pascal's Triangle (118)
  • Linked List
    • Copy List with Random Pointer
    • Remove Nth Node From End of List
    • Remove Duplicated from Sorted List II
  • Tips
    • Finding dups
  • Sliding Window
    • Subarray Product Less Than K
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  1. Linked List

Copy List with Random Pointer

PreviousPascal's Triangle (118)NextRemove Nth Node From End of List

Last updated 3 years ago

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Approach1: Optimal