【LeetCode 193. Valid Phone Numbers】的更多相关文章

LeetCode 193. Valid Phone Numbers

分析 难度 易 来源 https://leetcode.com/problems/valid-phone-numbers/ 题目 Given a text file file.txt that contains list of phone numbers (one per line), write a one liner bash script to print all valid phone numbers. You may assume that a valid phone number m…

LeetCode（193. Valid Phone Numbers）(sed用法)

193. Valid Phone Numbers Given a text file file.txt that contains list of phone numbers (one per line), write a one liner bash script to print all valid phone numbers. You may assume that a valid phone number must appear in one of the following two f…

193 Valid Phone Numbers

Given a text file file.txt that contains list of phone numbers (one per line), write a one liner bash script to print all valid phone numbers. You may assume that a valid phone number must appear in one of the following two formats: (xxx) xxx-xxxx or…

[LeetCode] 193. Valid Phone Numbers_Easy tag: Bash

Given a text file file.txt that contains list of phone numbers (one per line), write a one liner bash script to print all valid phone numbers. You may assume that a valid phone number must appear in one of the following two formats: (xxx) xxx-xxxx or…

[LeetCode] Valid Phone Numbers 验证电话号码

Given a text file file.txt that contains list of phone numbers (one per line), write a one liner bash script to print all valid phone numbers. You may assume that a valid phone number must appear in one of the following two formats: (xxx) xxx-xxxx or…

[Bash]LeetCode193. 有效电话号码 | Valid Phone Numbers

Given a text file file.txt that contains list of phone numbers (one per line), write a one liner bash script to print all valid phone numbers. You may assume that a valid phone number must appear in one of the following two formats: (xxx) xxx-xxxx or…

[LeetCode] Longest Valid Parentheses

第一种方法,用栈实现,最容易想到,也比较容易实现,每次碰到‘)’时update max_len,由于要保存之前的‘(’的index,所以space complexity 是O(n) // 使用栈,时间复杂度 O(n),空间复杂度 O(n) class Solution { public: int longestValidParentheses(string s) { , last = -; stack<int> lefts; ; i < s.size(); ++i) { if (s[i]…

LeetCode(2) || Add Two Numbers && Longest Substring Without Repeating Characters

LeetCode(2) || Add Two Numbers && Longest Substring Without Repeating Characters 题记 刷LeetCode第二天,今天做了两道题,速度比我想的要慢,看样子两个月的目标有点难,尽力吧.今天主要做了Add Two Numbers和Longest Substring Without Repeating Characters 两道题,下面就来看下这两道题吧. 题一:Add Two Numbers 题目内容 You ar…

Valid Phone Numbers

Given a text file file.txt that contains list of phone numbers (one per line), write a one liner bash script to print all valid phone numbers. You may assume that a valid phone number must appear in one of the following two formats: (xxx) xxx-xxxx or…

[LeetCode] 036. Valid Sudoku (Easy) (C++)

指数:[LeetCode] Leetcode 解决问题的指数 (C++/Java/Python/Sql) Github: https://github.com/illuz/leetcode 036. Valid Sudoku (Easy) 链接: 题目:https://leetcode.com/problems/valid-sudoku/ 代码(github):https://github.com/illuz/leetcode 题意: 推断一个数独是否有效. 有效的数独不强求有解. 分析: 仅仅…