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