22. 括号生成 Generate Parentheses难度:Medium| 中等相关知识点:字符串、回溯算法题目链接:https://leetcode-cn.com/problems/generate-parentheses/官方题解:https://leetcode-cn.com/problems/generate-parentheses/solution/, 视频播放量 1552、弹幕量 2、点赞数 1
Givennpairs of parentheses, write a function to generate all combinations of well-formed parentheses. For example, givenn= 3, a solution set is: [ "((()))", "(()())", "(())()", "()(())", "()()()" ] 这道题目难度颇高,如果没有正确的思路出发点,是很难做出来的。 典型的...
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: "((()))", "(()())", "(())()", "()(())", "()()()" 【思路】 自然而然地相当递归。 不知有没有非递归的解法。简单查了一...
public List<String> generateParenthesis(int n) { this.c = new char[n * 2]; this.n = n * 2; dspGener(0); return strList; } List<String> strList = new ArrayList<String>(); char c[];//暂存中间结果 char kuohao[] = new char[] { '(', ')' }; int n = 0; void dspGener...
Leetcode: Generate Parentheses 题目: 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: “((()))”, “(()())”, “(())()”, “()(())”, “()()()”...
自己没想出来,全部参考 LeetCode 给出的Solution。 解法一 暴力破解 列举所有的情况,每一位有左括号和右括号两种情况,总共 2n 位,所以总共 种情况。 publicList<String>generateParenthesis(intn){List<String>combinations=newArrayList();generateAll(newchar[2*n],0,combinations);returncombinations;}publicvoidgene...
1. Description Generate Parentheses 2. Solution class Solution{public:vector<string>generateParenthesis(intn){vector<string>result;push(0,0,result,"",n,'(');returnresult;}private:voidpush(intleft,intright,vector<string>&result,string s,constintn,charch){s+=ch;if(ch=='('){left++;}else{...
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: 分析 这一题猛一看很容易想到用stack去做,但是...leetcode Generate Parentheses题解 题目描述: Given n pairs of parentheses, write a function ...
Leetcode Generate Parentheses 题目:http://oj.leetcode.com/problems/generate-parentheses/ Givennpairs of parentheses, write a function to generate all combinations of well-formed parentheses. For example, givenn= 3, a solution set is: "((()))", "(()())", "(())()", "()(())", ...
https://leetcode.com/problems/generate-parentheses/description/ """ classSolution(object): defgenerateParenthesis(self,n): """ :type n: int :rtype: List[str] """ result=[] def_generateParenthesis(x,y,parenthesis): ifnotxandnoty: