Given a balanced parentheses string S , compute the score of the string based on the following rule: has score ABhas scoreA B, where A and B are balanced parentheses strings. A has score A, where A i ...
2019-03-31 23:55 0 1574 推荐指数：
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 ...
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 ...
1: Example 2: 这道求最长有效括号比之前那道 Valid Parentheses ...
A valid parentheses string is either empty (""), "(" + A + ")", or A + B, where A and B are valid parentheses strings, and + represents string ...
Remove the minimum number of invalid parentheses in order to make the input string valid. Return all possible results. Note: The input string may ...
You are given a string s that consists of lower case English letters and brackets. Reverse the strings in each pair of matching parentheses ...
