A valid parentheses string is either empty , A , orA B, whereAandBare valid parentheses strings, and represents string concatenation. For example, , , , and are all valid parentheses strings. A valid ...
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Remove the minimum number of invalid parentheses in order to make the input string valid. Return all possible results. Note: The input string may ...
Leetcode之深度优先搜索（DFS）专题-301. 删除无效的括号（Remove Invalid Parentheses） 删除最小数量的无效括号，使得输入的字符串有效，返回所有可能的结果。 说明: 输入可能包含了除 ( 和 ) 以外的字符。 示例 1: 示例 ...
Given a string s of '(' , ')' and lowercase English characters. Your task is to remove the minimum number of parentheses ( '(' or ')', in any ...
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: "((()))", "(()())", "(())()", "()(())", "()()()" ...
= 3, a solution set is: 在 LeetCode 中有关括号的题共有七 ...
Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determine if the i ...
Given a balanced parentheses string `S`, compute the score of the string based on the following rule: () has score 1 AB has score A + B, where ...
题目描述 给出 n 代表生成括号的对数，请你写出一个函数，使其能够生成所有可能的并且有效的括号组合。 例如，给出 n =3，生成结果为： 解题思路 利用回溯的思想递归的生成括号。具体来说记录当前剩余左括号数left，剩余右括号数right，当前 ...
