leetcode-problemset/leetcode-cn/originData/valid-palindrome.json

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            "title": "Valid Palindrome",
            "titleSlug": "valid-palindrome",
            "content": "<p>A phrase is a <strong>palindrome</strong> if, after converting all uppercase letters into lowercase letters and removing all non-alphanumeric characters, it reads the same forward and backward. Alphanumeric characters include letters and numbers.</p>\n\n<p>Given a string <code>s</code>, return <code>true</code><em> if it is a <strong>palindrome</strong>, or </em><code>false</code><em> otherwise</em>.</p>\n\n<p>&nbsp;</p>\n<p><strong>Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> s = &quot;A man, a plan, a canal: Panama&quot;\n<strong>Output:</strong> true\n<strong>Explanation:</strong> &quot;amanaplanacanalpanama&quot; is a palindrome.\n</pre>\n\n<p><strong>Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> s = &quot;race a car&quot;\n<strong>Output:</strong> false\n<strong>Explanation:</strong> &quot;raceacar&quot; is not a palindrome.\n</pre>\n\n<p><strong>Example 3:</strong></p>\n\n<pre>\n<strong>Input:</strong> s = &quot; &quot;\n<strong>Output:</strong> true\n<strong>Explanation:</strong> s is an empty string &quot;&quot; after removing non-alphanumeric characters.\nSince an empty string reads the same forward and backward, it is a palindrome.\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= s.length &lt;= 2 * 10<sup>5</sup></code></li>\n\t<li><code>s</code> consists only of printable ASCII characters.</li>\n</ul>\n",
            "translatedTitle": "验证回文串",
            "translatedContent": "<p>给定一个字符串，验证它是否是回文串，只考虑字母和数字字符，可以忽略字母的大小写。</p>\n\n<p><strong>说明：</strong>本题中，我们将空字符串定义为有效的回文串。</p>\n\n<p> </p>\n\n<p><strong>示例 1:</strong></p>\n\n<pre>\n<strong>输入:</strong> \"A man, a plan, a canal: Panama\"\n<strong>输出:</strong> true\n<strong>解释：</strong>\"amanaplanacanalpanama\" 是回文串\n</pre>\n\n<p><strong>示例 2:</strong></p>\n\n<pre>\n<strong>输入:</strong> \"race a car\"\n<strong>输出:</strong> false\n<strong>解释：</strong>\"raceacar\" 不是回文串\n</pre>\n\n<p> </p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li><code>1 <= s.length <= 2 * 10<sup>5</sup></code></li>\n\t<li>字符串 <code>s</code> 由 ASCII 字符组成</li>\n</ul>\n",
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