leetcode.com 2026-09-27
🟡1190.reverse-substrings-between-each-pair-of-parentheses
🏷️ Tags
#stack #string #bracket_sequences
🟡1190.reverse-substrings-between-each-pair-of-parentheses
🏷️ Tags
#stack #string #bracket_sequences
Telegraph
reverse-substrings-between-each-pair-of-parentheses
You are given a string s that consists of lower case English letters and brackets. Reverse the strings in each pair of matching parentheses, starting from the innermost one. Your result should not contain any brackets. Example 1: Input: s = "(abcd)" Output:…
leetcode.cn 2026-09-28
🟢1614.maximum-nesting-depth-of-the-parentheses
🏷️ Tags
#stack #string #bracket_sequences
🟢1614.maximum-nesting-depth-of-the-parentheses
🏷️ Tags
#stack #string #bracket_sequences
Telegraph
maximum-nesting-depth-of-the-parentheses
给定 有效括号字符串 s,返回 s 的 嵌套深度。嵌套深度是嵌套括号的 最大 数量。 示例 1: 输入:s = "(1+(2*3)+((8)/4))+1" 输出:3 解释:数字 8 在嵌套的 3 层括号中。 示例 2: 输入:s = "(1)+((2))+(((3)))" 输出:3 解释:数字 3 在嵌套的 3 层括号中。 示例 3: 输入:s = "()(())((()()))" 输出:3 提示:
leetcode.com 2026-09-28
🟢1614.maximum-nesting-depth-of-the-parentheses
🏷️ Tags
#stack #string #bracket_sequences
🟢1614.maximum-nesting-depth-of-the-parentheses
🏷️ Tags
#stack #string #bracket_sequences
Telegraph
maximum-nesting-depth-of-the-parentheses
Given a valid parentheses string s, return the nesting depth of s. The nesting depth is the maximum number of nested parentheses. Example 1: Input: s = "(1+(2*3)+((8)/4))+1" Output: 3 Explanation: Digit 8 is inside of 3 nested parentheses in the string.…
leetcode.cn 2026-09-29
🔴2267.check-if-there-is-a-valid-parentheses-string-path
🏷️ Tags
#array #dynamic_programming #matrix #bracket_sequences
🔴2267.check-if-there-is-a-valid-parentheses-string-path
🏷️ Tags
#array #dynamic_programming #matrix #bracket_sequences
Telegraph
check-if-there-is-a-valid-parentheses-string-path
一个括号字符串是一个 非空 且只包含 '(' 和 ')' 的字符串。如果下面 任意 条件为 真 ,那么这个括号字符串就是 合法的 。
leetcode.com 2026-09-29
🔴2267.check-if-there-is-a-valid-parentheses-string-path
🏷️ Tags
#array #dynamic_programming #matrix #bracket_sequences
🔴2267.check-if-there-is-a-valid-parentheses-string-path
🏷️ Tags
#array #dynamic_programming #matrix #bracket_sequences
Telegraph
check-if-there-is-a-valid-parentheses-string-path
A parentheses string is a non-empty string consisting only of '(' and ')'. It is valid if any of the following conditions is true:
leetcode.cn 2026-09-30
🟡1111.maximum-nesting-depth-of-two-valid-parentheses-strings
🏷️ Tags
#stack #string #bracket_sequences
🟡1111.maximum-nesting-depth-of-two-valid-parentheses-strings
🏷️ Tags
#stack #string #bracket_sequences
Telegraph
maximum-nesting-depth-of-two-valid-parentheses-strings
如果一个字符串仅由字符 "(" 和 ")" 组成,并且满足以下条件,则称为有效括号字符串(VPS):
leetcode.com 2026-09-30
🟡1111.maximum-nesting-depth-of-two-valid-parentheses-strings
🏷️ Tags
#stack #string #bracket_sequences
🟡1111.maximum-nesting-depth-of-two-valid-parentheses-strings
🏷️ Tags
#stack #string #bracket_sequences
Telegraph
maximum-nesting-depth-of-two-valid-parentheses-strings
A string is a valid parentheses string (denoted VPS) if and only if it consists of "(" and ")" characters only, and:
leetcode.com 2026-10-02
🟡22.generate-parentheses
🏷️ Tags
#string #dynamic_programming #backtracking #bracket_sequences
🟡22.generate-parentheses
🏷️ Tags
#string #dynamic_programming #backtracking #bracket_sequences
Telegraph
generate-parentheses
Given n pairs of parentheses, write a function to generate all combinations of well-formed parentheses. Example 1: Input: n = 3 Output: ["((()))","(()())","(())()","()(())","()()()"] Example 2: Input: n = 1 Output: ["()"] Constraints:
leetcode.cn 2026-10-03
🔴32.longest-valid-parentheses
🏷️ Tags
#stack #string #dynamic_programming #bracket_sequences
🔴32.longest-valid-parentheses
🏷️ Tags
#stack #string #dynamic_programming #bracket_sequences
Telegraph
longest-valid-parentheses
给你一个只包含 '(' 和 ')' 的字符串,找出最长有效(格式正确且连续)括号 子串 的长度。 左右括号匹配,即每个左括号都有对应的右括号将其闭合的字符串是格式正确的,比如 "(()())"。 示例 1: 输入:s = "(()" 输出:2 解释:最长有效括号子串是 "()" 示例 2: 输入:s = ")()())" 输出:4 解释:最长有效括号子串是 "()()" 示例 3: 输入:s = "" 输出:0 提示:
leetcode.com 2026-10-03
🔴32.longest-valid-parentheses
🏷️ Tags
#stack #string #dynamic_programming #bracket_sequences
🔴32.longest-valid-parentheses
🏷️ Tags
#stack #string #dynamic_programming #bracket_sequences
Telegraph
longest-valid-parentheses
Given a string containing just the characters '(' and ')', return the length of the longest valid (well-formed) parentheses substring. Example 1: Input: s = "(()" Output: 2 Explanation: The longest valid parentheses substring is "()". Example 2: Input:…