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"translatedContent": "<p>给定一个 <code>m x n</code> 二维字符网格 <code>board</code> 和一个字符串单词 <code>word</code> 。如果 <code>word</code> 存在于网格中,返回 <code>true</code> ;否则,返回 <code>false</code> 。</p>\n\n<p>单词必须按照字母顺序,通过相邻的单元格内的字母构成,其中“相邻”单元格是那些水平相邻或垂直相邻的单元格。同一个单元格内的字母不允许被重复使用。</p>\n\n<p> </p>\n\n<p>例如,在下面的 3×4 的矩阵中包含单词 \"ABCCED\"(单词中的字母已标出)。</p>\n\n<p><img alt=\"\" src=\"https://assets.leetcode.com/uploads/2020/11/04/word2.jpg\" style=\"width: 322px; height: 242px;\" /></p>\n\n<p> </p>\n\n<p><strong>示例 1</strong></p>\n\n<pre>\n<strong>输入:</strong>board = [[\"A\",\"B\",\"C\",\"E\"],[\"S\",\"F\",\"C\",\"S\"],[\"A\",\"D\",\"E\",\"E\"]], word = \"ABCCED\"\n<strong>输出:</strong>true\n</pre>\n\n<p><strong>示例 2</strong></p>\n\n<pre>\n<strong>输入:</strong>board = [[\"a\",\"b\"],[\"c\",\"d\"]], word = \"abcd\"\n<strong>输出:</strong>false\n</pre>\n\n<p> </p>\n\n<p><strong>提示:</strong></p>\n\n<ul>\n\t<li><code>1 <= board.length <= 200</code></li>\n\t<li><code>1 <= board[i].length <= 200</code></li>\n\t<li><code>board</code> 和 <code>word</code> 仅由大小写英文字母组成</li>\n</ul>\n\n<p> </p>\n\n<p><strong>注意:</strong>本题与主站 79 题相同:<a href=\"https://leetcode-cn.com/problems/word-search/\">https://leetcode-cn.com/problems/word-search/</a></p>\n",
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