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"translatedContent": "<p>给你一个字符串数组 <code>words</code> ,找出并返回数组中的 <strong>第一个回文字符串</strong> 。如果不存在满足要求的字符串,返回一个 <strong>空字符串</strong><em> </em><code>\"\"</code> 。</p>\n\n<p><strong>回文字符串</strong> 的定义为:如果一个字符串正着读和反着读一样,那么该字符串就是一个 <strong>回文字符串</strong> 。</p>\n\n<p> </p>\n\n<p><strong>示例 1:</strong></p>\n\n<pre><strong>输入:</strong>words = [\"abc\",\"car\",\"ada\",\"racecar\",\"cool\"]\n<strong>输出:</strong>\"ada\"\n<strong>解释:</strong>第一个回文字符串是 \"ada\" 。\n注意,\"racecar\" 也是回文字符串,但它不是第一个。\n</pre>\n\n<p><strong>示例 2:</strong></p>\n\n<pre><strong>输入:</strong>words = [\"notapalindrome\",\"racecar\"]\n<strong>输出:</strong>\"racecar\"\n<strong>解释:</strong>第一个也是唯一一个回文字符串是 \"racecar\" 。\n</pre>\n\n<p><strong>示例 3:</strong></p>\n\n<pre><strong>输入:</strong>words = [\"def\",\"ghi\"]\n<strong>输出:</strong>\"\"\n<strong>解释:</strong>不存在回文字符串,所以返回一个空字符串。\n</pre>\n\n<p> </p>\n\n<p><strong>提示:</strong></p>\n\n<ul>\n\t<li><code>1 <= words.length <= 100</code></li>\n\t<li><code>1 <= words[i].length <= 100</code></li>\n\t<li><code>words[i]</code> 仅由小写英文字母组成</li>\n</ul>\n",
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"difficulty": "Easy",
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"hints": [
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"Iterate through the elements in order. As soon as the current element is a palindrome, return it.",
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"To check if an element is a palindrome, can you reverse the string?"
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