Remove the minimum number of invalid parentheses in order to make the input string valid. Return all possible results. Note: The input string may contain letters other than the parentheses ( and ). Example1: Input:"()())()"Output: ["()()()", "(())()"] Example2: Input:"(a)()...
思路:可以利用DFS或者BFS来解这道题,感觉还是BFS简单点,即对于从给定的字符串通过移除 ( 或 ) 来构造所有可能的合法串,如果合法就加入到set集合中,不合法到到下一轮的BFS中。 publicclassSolution {publicList<String>removeInvalidParentheses(String s) { List<String> res =newArrayList<>();//sanity checkif...
301. Remove Invalid Parentheses 样例 Remove the minimum number of invalid parentheses in order to make the input string valid. Return all possible results. Note: The input string may contain letters other than the parentheses ( and ). Example 1: Input: "()())()" Output: ["()()()", ...
【Leetcode】Remove Invalid Parentheses 题目链接:https://leetcode.com/problems/remove-invalid-parentheses/ 题目: Remove the minimum number of invalid parentheses in order to make the input string valid. Return all possible results. Note: The input string may contain letters other than the parentheses...
Description Remove the minimum number of invalid parentheses in order to make the input string valid. Return all possible results. Note: The input string may contain letters other than the parentheses ( and ). Example 1: Input: "()())()" ...
class Solution { public: vector<string> removeInvalidParentheses(string s) { vector<string> res; int cnt1 = 0, cnt2 = 0; for (char c : s) { cnt1 += (c == '('); if (cnt1 == 0) cnt2 += (c == ')'); else cnt1 -= (c == ')'); } helper(s, 0, cnt1, cnt2...
简介: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。 Description Remove the minimum number of invalid parentheses in order to make the input string valid. Return all possible results. ...
int dp[1005][1005]; vector<string> removeInvalidParentheses(string s) { if(s=="") { str[0][0].push_back(""); return str[0][0]; } for(int i=0;i<s.length();i++) { if(s[i]=='('||s[i]==')') { dp[i][i] = 1; ...
先尝试 remove 零个,再一个,再两个,再三个……每次都调用 isValid 方法来判定是否 valid。 代码语言:javascript 代码运行次数:0 运行 复制 public class Solution { public List<String> removeInvalidParentheses(String s) { List<String> list = new ArrayList<>(); Set<String> set = new HashSet<>()...
Here are some of the best backtracking interview questions. We recommend: Word Search II, Remove Invalid Parentheses and Regular Expression Matching. Sorting and Searching These problems deal with sorting or searching in a sorted structure. We recommend: Median of Two Sorted Arrays. Hands down one...