{ "data": { "question": { "questionId": "1371", "questionFrontendId": "1249", "categoryTitle": "Algorithms", "boundTopicId": 39465, "title": "Minimum Remove to Make Valid Parentheses", "titleSlug": "minimum-remove-to-make-valid-parentheses", "content": "

Given a string s of '(' , ')' and lowercase English characters.

\n\n

Your task is to remove the minimum number of parentheses ( '(' or ')', in any positions ) so that the resulting parentheses string is valid and return any valid string.

\n\n

Formally, a parentheses string is valid if and only if:

\n\n\n\n

 

\n

Example 1:

\n\n
\nInput: s = "lee(t(c)o)de)"\nOutput: "lee(t(c)o)de"\nExplanation: "lee(t(co)de)" , "lee(t(c)ode)" would also be accepted.\n
\n\n

Example 2:

\n\n
\nInput: s = "a)b(c)d"\nOutput: "ab(c)d"\n
\n\n

Example 3:

\n\n
\nInput: s = "))(("\nOutput: ""\nExplanation: An empty string is also valid.\n
\n\n

 

\n

Constraints:

\n\n\n", "translatedTitle": "移除无效的括号", "translatedContent": "

给你一个由 '('、')' 和小写字母组成的字符串 s。

\n\n

你需要从字符串中删除最少数目的 '(' 或者 ')' （可以删除任意位置的括号)，使得剩下的「括号字符串」有效。

\n\n

请返回任意一个合法字符串。

\n\n

有效「括号字符串」应当符合以下 任意一条 要求：

\n\n\n\n

 

\n\n

示例 1：

\n\n
\n输入：s = \"lee(t(c)o)de)\"\n输出：\"lee(t(c)o)de\"\n解释：\"lee(t(co)de)\" , \"lee(t(c)ode)\" 也是一个可行答案。\n
\n\n

示例 2：

\n\n
\n输入：s = \"a)b(c)d\"\n输出：\"ab(c)d\"\n
\n\n

示例 3：

\n\n
\n输入：s = \"))((\"\n输出：\"\"\n解释：空字符串也是有效的\n
\n\n

 

\n\n

提示：

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