Longest Valid Parentheses Given a string containing just the characters '(' and ')', find the length of the longest valid (well-formed) parentheses substring. For "(()", the longest valid parentheses substring is "()", which has length…
Given a string containing just the characters '(' and ')', find the length of the longest valid (well-formed) parentheses substring. For "(()", the longest valid parentheses substring is "()", which has length = 2. Another example is &…
一天一道LeetCode系列 (一)题目 Given a string containing just the characters '(' and ')', find the length of the longest valid (well-formed) parentheses substring. For "(()", the longest valid parentheses substring is "()", which has length = 2.…
Given a string containing just the characters '(' and ')', find the length of the longest valid (well-formed) parentheses substring. For "(()", the longest valid parentheses substring is "()", which has length = 2. Another example is &…
# -*- coding: utf8 -*-'''__author__ = 'dabay.wang@gmail.com' 32: Longest Valid Parentheseshttps://oj.leetcode.com/problems/longest-valid-parentheses/ Given a string containing just the characters '(' and ')',find the length of the longest valid (well…
Longest Valid Parentheses Given a string containing just the characters '(' and ')', find the length of the longest valid (well-formed) parentheses substring. For "(()", the longest valid parentheses substring is "()", which has length…
Longest Common Prefix Write a function to find the longest common prefix string amongst an array of strings. 解法一: 思路:设置一个位数记录器num,遍历所有字符串的第num位.如果都相同,则num++. 直到某字符串结束或者所有字符串的第num位不都相同,则返回[0~num-1]位,即最长公共前缀. class Solution { public: string longestComm…
20. Valid Parentheses 错误解法: "[])"就会报错,没考虑到出现')'.']'.'}'时,stack为空的情况,这种情况也无法匹配 class Solution { public: bool isValid(string s) { if(s.empty()) return false; stack<char> st; st.push(s[]); ;i < s.size();i++){ if(s[i] == '(' || s[i] == '['…
一.题目说明 题目是32. Longest Valid Parentheses,求最大匹配的括号长度.题目的难度是Hard 二.我的做题方法 简单理解了一下,用栈就可以实现.实际上是我考虑简单了,经过5次提交终于正确了. 性能如下: Runtime: 8 ms, faster than 61.76% of C++ online submissions for Longest Valid Parentheses. Memory Usage: 9.8 MB, less than 10.71% of…
[LeetCode]522. Longest Uncommon Subsequence II 解题报告(Python) 标签(空格分隔): LeetCode 作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 题目地址:https://leetcode.com/problems/longest-uncommon-subsequence-ii/description/ 题目描述: Given a list of strings, you…