9.6 Implement an algorithm to print all valid (e.g., properly opened and closed) combinations of n-pairs of parentheses.EXAMPLEInput: 3Output: ((())), (()()), (())(), ()(()), ()()() LeetCode上的原题,请参见我之前的博客Generate Parentheses 生成括号. 解法一: class Solution…

我的代码 <!--代码高亮插件--> <link rel="stylesheet" type="text/css" href="/web/lib/highlight/styles/atelier-dune-dark.css"> <script type="text/javascript" src="/web/lib/highlight/highlight.pack.js">…

EmacsWiki上关于它的介绍HighlightParentheses,下载最新版请通过作者的GitHub:https://github.com/nschum/highlight-parentheses.el 目前的最新版是1.0.2 加载文件中加入以下语句 (require 'highlight-parentheses) 用M-x highlight-parentheses-mode来启动. 能看到光标处于括号中的任意位置,高亮最接近的括号,而且用不同颜色依次高亮外侧的n层括号.如果觉得默认…

Given a string of numbers and operators, return all possible results from computing all the different possible ways to group numbers and operators. The valid operators are +, -and *. Example 1 Input: "2-1-1". ((2-1)-1) = 0 (2-(1-1)) = 2 Output: …

Given n pairs of parentheses, write a function to generate all combinations of well-formed parentheses. For example, given n = 3, a solution set is: "((()))", "(()())", "(())()", "()(())", "()()()" 在LeetCo…

Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. The brackets must close in the correct order, "()" and "()[]{}" are all valid but "(]" and "([)]"…

在逛别人的博客的时候,看见别人的代码的例子使用了高亮的语法,无论是java,js还是php等等语言,都会自动的对关键字进行高亮. 于是在前几天自己写了一个博客,遇到code时,自然就想到了别人网站如何漂亮,巴拉巴拉. 开始了正式的捣鼓. 在捣鼓之前去别的网站看了看.这里贴上简书的效果: 其中的关键字,方法名,字符串都有不同的颜色,虽然这个代码高亮得不是很好看,但还过得去.于是去看了看document,发现是这样的: <pre class="hljs javascript">…

highlight 是一款简单易用的 web 代码高亮插件,可以自动检测编程语言并高亮,兼容各种框架,可以说是十分强大了.下面就简单介绍一下如何使用这款插件. 两种使用方式: 1. 手动选择主题,官网下载highlight 库文件,并在页面中分别引用 js 和 css 文件. 2. 使用 cdn 链接. 为了简单方便,这里使用第二种方法. cdn 地址:http://www.bootcdn.cn highlight cdn: https://cdn.bootcss.com/highlight.j…

Given n pairs of parentheses, write a function to generate all combinations of well-formed parentheses. For example, given n = 3, a solution set is: [ "((()))", "(()())", "(())()", "()(())", "()()()" ] 给定一…

Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. An input string is valid if: Open brackets must be closed by the same type of brackets. Open brackets must be closed in the correct…

Given n pairs of parentheses, write a function to generate all combinations of well-formed parentheses. For example, given n = 3, a solution set is: [ "((()))", "(()())", "(())()", "()(())", "()()()" ] 题意:…

显示静态的代码其实html的pre标签基本可以满足需求了,至少不会将换行的文本显示成一堆字符串. 不过能使静态的文本能高亮显示,倒更炫酷一点.其实很简单的,引入highlight.js包,可以使用cdn上的静态资源,引入css和js: <link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/8.4/styles/default.min.css"> <scr…

vim括号匹配高亮显示在vim7.4版本, 默认就是开启的. 但是默认的括号匹配 高亮的颜色是浅蓝色, 在亮瞎眼的同时, 严重影响我们写代码, 最明显的感受 就是, 连续打出一对括号, 接下来不仔细看, 根本找不到光标在哪? So, 怎么破? 在~/.vimrc配置文件中添加, 下面一行 hi MatchParen ctermbg=Yellow guibg=lightblue 其中Yellow就是我们需要修改的颜色, 我这里改成了红色, 后面那个颜色 暂时不知道有什么暖用, 不用管它. 更改后,…

Given n pairs of parentheses, write a function to generate all combinations of well-formed parentheses. For example, given n = 3, a solution set is: "((()))", "(()())", "(())()", "()(())", "()()()" 求出所有可能的…

［抄题］: Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. The brackets must close in the correct order, "()" and "()[]{}" are all valid but "(]" and "([)…

Given a string containing just the characters'(',')','{','}','['and']', determine if the input string is valid. The brackets must close in the correct order,"()"and"()[]{}"are all valid but"(]"and"([)]"are not. 题意:给…

描述 Given n pairs of parentheses, write a function to generate all combinations of well-formed parentheses. For example, given n = 3, a solution set is: [ "((()))", "(()())", "(())()", "()(())", "()()()" ]…

题目 Given n pairs of parentheses, write a function to generate all combinations of well-formed parentheses. For example, given n=3, a solution set is:  [   "( ( ( ) ) )",   "( ( ) ( ) )",   "( ( ) ) ( )",   "( ) ( ( ) )&q…

Given a string of numbers and operators, return all possible results from computing all the different possible ways to group numbers and operators. The valid operators are +, - and *. Example 1: Input: "2-1-1" Output: [0, 2] Explanation: ((2-1)-…

Given n pairs of parentheses, write a function to generate all combinations of well-formed parentheses. For example, given n = 3, a solution set is: [ "((()))", "(()())", "(())()", "()(())", "()()()" ]   …

Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. An input string is valid if: Open brackets must be closed by the same type of brackets. Open brackets must be closed in the correct…

Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. An input string is valid if: Open brackets must be closed by the same type of brackets. Open brackets must be closed in the correct…

Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. Have you met this question in a real interview?     Example The brackets must close in the correct order, "()" and "()[]{…

Given n pairs of parentheses, write a function to generate all combinations of well-formed parentheses. Have you met this question in a real interview?     Example Given n = 3, a solution set is: "((()))", "(()())", "(())()",…

题意: 产生n对合法括号的所有组合,用vector<string>返回. 思路: 递归和迭代都可以产生.复杂度都可以为O(2n*合法的括号组合数),即每次产生出的括号序列都保证是合法的. 方法都是差不多的,就是记录当前产生的串中含有左括号的个数cnt,如果出现右括号,就将cnt--.当长度为2*n的串的cnt为0时,就是答案了,如果当前cnt比剩下未填的位数要小,则可以继续装“(”,否则不能再装.如果当前cnt>0,那么就能继续装“)”与其前面的左括号匹配(无需要管匹配到谁,总之能匹配)…

给定一个仅包含 '('.')'.'{'.'}'.'['.']'的字符串,确定输入的字符串是否合法. e.g. "()"."()[]{}"."[()]([]({}))" 是合法的,而"(]"."([)]" 是不合法的. 使用栈stack C++实现: bool isValid(string s) { stack<char> stack; for (char &c : s) { if (c…

题目链接 https://leetcode.com/problems/valid-parentheses/?tab=Description   Problem: 括号匹配问题. 使用栈,先进后出!   参考代码1: package leetcode_50; import java.util.Stack; /*** * * @author pengfei_zheng * 括号匹配问题 */ public class Solution20 { public static boolean isVali…

问题描述:给定一个字符串,其中只包含字符‘{’,    '}',    '[',    ']',   '(',    ')'确定如果输入字符串是有效的.括号必须以正确的顺序排列,“()”和“()[]{ }”都是有效的,   "{",  " {]"等都是无效的. 解题思路:利用栈,如果不是右括号就压入栈中,如果是右括号,就看前一个字符是不是匹配的左括号,如果匹配出栈,接着看后面字符,不匹配则返回false. public boolean isValid(String…

Level: ​  Easy 题目描述: Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. An input string is valid if: Open brackets must be closed by the same type of brackets. Open brackets must be…

给 n 对括号,写一个函数生成所有合适的括号组合.比如,给定 n = 3,一个结果为:[  "((()))",  "(()())",  "(())()",  "()(())",  "()()()"]详见:https://leetcode.com/problems/generate-parentheses/description/ 由于字符串只有左括号和右括号两种字符,而且最终结果必定是左括号3个,右括号3个…