{ "data": { "question": { "questionId": "2221", "questionFrontendId": "2116", "categoryTitle": "Algorithms", "boundTopicId": 1172832, "title": "Check if a Parentheses String Can Be Valid", "titleSlug": "check-if-a-parentheses-string-can-be-valid", "content": "

A parentheses string is a non-empty string consisting only of '(' and ')'. It is valid if any of the following conditions is true:

\n\n\n\n

You are given a parentheses string s and a string locked, both of length n. locked is a binary string consisting only of '0's and '1's. For each index i of locked,

\n\n\n\n

Return true if you can make s a valid parentheses string. Otherwise, return false.

\n\n

 

\n

Example 1:

\n\"\"\n
\nInput: s = "))()))", locked = "010100"\nOutput: true\nExplanation: locked[1] == '1' and locked[3] == '1', so we cannot change s[1] or s[3].\nWe change s[0] and s[4] to '(' while leaving s[2] and s[5] unchanged to make s valid.
\n\n

Example 2:

\n\n
\nInput: s = "()()", locked = "0000"\nOutput: true\nExplanation: We do not need to make any changes because s is already valid.\n
\n\n

Example 3:

\n\n
\nInput: s = ")", locked = "0"\nOutput: false\nExplanation: locked permits us to change s[0]. \nChanging s[0] to either '(' or ')' will not make s valid.\n
\n\n

 

\n

Constraints:

\n\n\n", "translatedTitle": "判断一个括号字符串是否有效", "translatedContent": "

一个括号字符串是只由 '(' 和 ')' 组成的 非空 字符串。如果一个字符串满足下面 任意 一个条件，那么它就是有效的：

\n\n\n\n

给你一个括号字符串 s 和一个字符串 locked ，两者长度都为 n 。locked 是一个二进制字符串，只包含 '0' 和 '1' 。对于 locked 中 每一个 下标 i ：

\n\n\n\n

如果你可以将 s 变为有效括号字符串，请你返回 true ，否则返回 false 。

\n\n

 

\n\n

示例 1：

\n\n

\"\"

\n\n
\n输入：s = \"))()))\", locked = \"010100\"\n输出：true\n解释：locked[1] == '1' 和 locked[3] == '1' ，所以我们无法改变 s[1] 或者 s[3] 。\n我们可以将 s[0] 和 s[4] 变为 '(' ，不改变 s[2] 和 s[5] ，使 s 变为有效字符串。
\n\n

示例 2：

\n\n
\n输入：s = \"()()\", locked = \"0000\"\n输出：true\n解释：我们不需要做任何改变，因为 s 已经是有效字符串了。\n
\n\n

示例 3：

\n\n
\n输入：s = \")\", locked = \"0\"\n输出：false\n解释：locked 允许改变 s[0] 。\n但无论将 s[0] 变为 '(' 或者 ')' 都无法使 s 变为有效字符串。\n
\n\n

 

\n\n

提示：

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