2021年1月2日
system design - youtube
摘要： How much data does YouTube actually use? Video QualityResolution (pixels)Framrate (FPS)Bitrate (average)Data used per minuteData used per 60 minutes 1 阅读全文
posted @ 2021-01-02 18:32 habibah_chang 阅读(90) 评论(0) 推荐(0) 编辑
37. Sudoku Solver
摘要： 问题： 数独问题，给定一个数独数组，求解填入数字，有且只有一个解。 A sudoku solution must satisfy all of the following rules: Each of the digits 1-9 must occur exactly once in each ro 阅读全文
posted @ 2021-01-02 16:30 habibah_chang 阅读(80) 评论(0) 推荐(0) 编辑
22. Generate Parentheses
摘要： 问题： 给定一个计量括号数量的数字n，求所有的括号组合可能序列。 Example 1: Input: n = 3 Output: ["((()))","(()())","(())()","()(())","()()()"] Example 2: Input: n = 1 Output: ["()"] 阅读全文
posted @ 2021-01-02 12:28 habibah_chang 阅读(72) 评论(0) 推荐(0) 编辑
17. Letter Combinations of a Phone Number
摘要： 问题： 按照手机拨号输入英文字母，给定一串手机拨号数字，求可输入的英文字串的所有可能性。 Example 1: Input: digits = "23" Output: ["ad","ae","af","bd","be","bf","cd","ce","cf"] Example 2: Input: 阅读全文
posted @ 2021-01-02 11:53 habibah_chang 阅读(59) 评论(0) 推荐(0) 编辑