}elseif(c ==')') {if(low >0) --low;--high; }else{if(low >0) --low;++high; }if(high <0)returnfalse; }returnlow ==0; } }; 类似题目: Valid Parentheses Special Binary String 参考资料: https://leetcode.com/problems/valid-parenthesis-string/ https://leetcode.com/problems/valid...
Left parenthesis'('must go before the corresponding right parenthesis')'. '*'could be treated as a single right parenthesis')'or a single left parenthesis'('or an empty string"". Example 1: Input:s = "()"Output:true Example 2: Input:s = "(*)"Output:true Example 3: Input:s = "...
Java 实现 classSolution{publicbooleanisValid(String s){ Stack<Character> stack =newStack<>();for(inti=0; i<s.length(); i++) {charc=s.charAt(i);if(c =='('|| c =='['|| c =='{') { stack.push(c); }else{if(stack.empty()) {returnfalse; }chartopChar=stack.pop();if(c...
【LeetCode】2. Valid Parentheses·有效的括号 秦她的菜 吉利 程序员 来自专栏 · Leetcode刷题笔记 题目描述 英文版描述 Given a string s containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid.An input string is valid if: Open ...
==1 表示有A在栈底,!= 1 就表示Solution().isValid("((()[])[]") 尝试使用: 成功。 对于想刷题但是基础不够扎实的同学,推荐两本神书——一本补基础,另外一本上手算法+数据结构,助你 LeetCode 刷到飞起~
Can you solve this real interview question? Valid Parentheses - Given a string s containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. An input string is valid if: 1. Open brackets must be closed by th
Leetcode: Valid Parentheses 题目: 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 “([)]”...
LeetCode-Valid Parentheses Description: 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...
41. Longest Valid Parentheses 最长有效括号算法:本题用两种方法解,一是stack,二是双向遍历面试准备系列,注重培养互联网大厂的面试能力,注重编程思路,coding限时,代码规范,想要求职,转行或者跳槽的朋友们别忘了一键三连一下,新人up主需要你宝贵的支持哟~
32. 最长有效括号 Longest Valid Parentheses难度:Hard| 困难 相关知识点:字符串 动态规划题目链接:https://leetcode-cn.com/problems/longest-valid-parentheses/官方题解:https://leetcode-cn.com/problems/longest-valid-parentheses/solution/, 视频播放量 3908、