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有效的括号

Category	Difficulty	Likes	Dislikes
algorithms	Easy (44.57%)	3234	-

<details open="" style="color: rgb(225, 228, 232); font-family: -apple-system, "system-ui", "Segoe WPC", "Segoe UI", system-ui, Ubuntu, "Droid Sans", sans-serif; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;"><summary>Companies</summary><code style="color: var(--vscode-textPreformat-foreground); font-family: var(--vscode-editor-font-family, "SF Mono", Monaco, Menlo, Consolas, "Ubuntu Mono", "Liberation Mono", "DejaVu Sans Mono", "Courier New", monospace); font-size: 1em; line-height: 1.357em; white-space: pre-wrap;">airbnb</code> | <code style="color: var(--vscode-textPreformat-foreground); font-family: var(--vscode-editor-font-family, "SF Mono", Monaco, Menlo, Consolas, "Ubuntu Mono", "Liberation Mono", "DejaVu Sans Mono", "Courier New", monospace); font-size: 1em; line-height: 1.357em; white-space: pre-wrap;">amazon</code> | <code style="color: var(--vscode-textPreformat-foreground); font-family: var(--vscode-editor-font-family, "SF Mono", Monaco, Menlo, Consolas, "Ubuntu Mono", "Liberation Mono", "DejaVu Sans Mono", "Courier New", monospace); font-size: 1em; line-height: 1.357em; white-space: pre-wrap;">bloomberg</code> | <code style="color: var(--vscode-textPreformat-foreground); font-family: var(--vscode-editor-font-family, "SF Mono", Monaco, Menlo, Consolas, "Ubuntu Mono", "Liberation Mono", "DejaVu Sans Mono", "Courier New", monospace); font-size: 1em; line-height: 1.357em; white-space: pre-wrap;">facebook</code> | <code style="color: var(--vscode-textPreformat-foreground); font-family: var(--vscode-editor-font-family, "SF Mono", Monaco, Menlo, Consolas, "Ubuntu Mono", "Liberation Mono", "DejaVu Sans Mono", "Courier New", monospace); font-size: 1em; line-height: 1.357em; white-space: pre-wrap;">google</code> | <code style="color: var(--vscode-textPreformat-foreground); font-family: var(--vscode-editor-font-family, "SF Mono", Monaco, Menlo, Consolas, "Ubuntu Mono", "Liberation Mono", "DejaVu Sans Mono", "Courier New", monospace); font-size: 1em; line-height: 1.357em; white-space: pre-wrap;">microsoft</code> | <code style="color: var(--vscode-textPreformat-foreground); font-family: var(--vscode-editor-font-family, "SF Mono", Monaco, Menlo, Consolas, "Ubuntu Mono", "Liberation Mono", "DejaVu Sans Mono", "Courier New", monospace); font-size: 1em; line-height: 1.357em; white-space: pre-wrap;">twitter</code> | <code style="color: var(--vscode-textPreformat-foreground); font-family: var(--vscode-editor-font-family, "SF Mono", Monaco, Menlo, Consolas, "Ubuntu Mono", "Liberation Mono", "DejaVu Sans Mono", "Courier New", monospace); font-size: 1em; line-height: 1.357em; white-space: pre-wrap;">zenefits</code></details>

给定一个只包括 '('，')'，'{'，'}'，'['，']' 的字符串 s ，判断字符串是否有效。

有效字符串需满足：

左括号必须用相同类型的右括号闭合。
左括号必须以正确的顺序闭合。

示例 1：

输入：s = "()"
输出：true

示例 2：

输入：s = "()[]{}"
输出：true

示例 3：

输入：s = "(]"
输出：false

示例 4：

输入：s = "([)]"
输出：false

示例 5：

输入：s = "{[]}"
输出：true

提示：

1 <= s.length <= 104
s 仅由括号 '()[]{}' 组成

Discussion | Solution https://leetcode-cn.com/problems/valid-parentheses/solution/)

解


// @lc code=start
/**
 * @param {string} s
 * @return {boolean}
 */
var isValid = function (s) {
  const ctx = ["()", "[]", "{}"];
  while (true) {
    for (let i = 0; i < ctx.length; i++) {
      s = s.replaceAll(ctx[i], "");
    }
    if (ctx.every((j) => s.indexOf(j) === -1)) {
      break;
    }
  }

  return !s.length;
};
// @lc code=end

// @after-stub-for-debug-begin
module.exports = isValid;
// @after-stub-for-debug-end

有效的括号 ​

解 ​

有效的括号

解