原文:[LeetCode] 1021. Remove Outermost Parentheses 去除最外層括號

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 ...

2021-02-08 02:19 0 317 推薦指數:

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[Leetcode] generate parentheses 生成括號

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: "((()))", "(()())", "(())()", "()(())", "()()()" ...

Thu Jul 13 19:08:00 CST 2017 0 2644
LeetCode 22. 括號生成(Generate Parentheses

題目描述 給出 n 代表生成括號的對數,請你寫出一個函數,使其能夠生成所有可能的並且有效的括號組合。 例如,給出 n =3,生成結果為: 解題思路 利用回溯的思想遞歸的生成括號。具體來說記錄當前剩余左括號數left,剩余右括號數right,當前 ...

Sun May 27 01:48:00 CST 2018 3 816
 
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