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LeetCode 刷题记录

  1. 535 Encode and Decode TinyURL
    • 映射关系
  2. 461 Hamming Distance
    • 需要补习位运算
  3. 561 Array Partition I
    • 理解题意,有点不好懂
  4. 595 Big Countries
    • SQL
  5. 476 Number Complement
    • 需要补习位运算
  6. 500 Keyboard Row
    • 正则解
    • 多遍历循环解
  7. 537 Complex Number Multiplication
    • 解析字符串后进行复数乘法
  8. 419 Battleships in a Board
    • DFS
    • 计算临边是否存有战船 X
  9. 344 Reverse String
    • StringBuilder(s).reverse()
    • char[] 内部自翻转
  10. 412 Fizz Buzz
  11. 620 Not Boring Movies
    • SQL
  12. 627 Swap Salary
    • update salary set sex = (case when sex='m' then 'f' else 'm' end)
  13. 575 Distribute Candies
    • 思路很有意思
  14. 292 NimGame
    • 找寻规律,思路转化
  15. 442 find all duplicates in an array
    • 主要与原始数据的 index 进行关联

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LeetCode 刷题记录

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