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"translatedContent": "<p>按照国际象棋的规则,皇后可以攻击与之处在同一行或同一列或同一斜线上的棋子。</p>\n\n<p><strong>n 皇后问题</strong> 研究的是如何将 <code>n</code> 个皇后放置在 <code>n×n</code> 的棋盘上,并且使皇后彼此之间不能相互攻击。</p>\n\n<p>给你一个整数 <code>n</code> ,返回所有不同的 <strong>n<em> </em>皇后问题</strong> 的解决方案。</p>\n\n<div class=\"original__bRMd\">\n<div>\n<p>每一种解法包含一个不同的 <strong>n 皇后问题</strong> 的棋子放置方案,该方案中 <code>'Q'</code> 和 <code>'.'</code> 分别代表了皇后和空位。</p>\n\n<p> </p>\n\n<p><strong>示例 1:</strong></p>\n<img alt=\"\" src=\"https://assets.leetcode.com/uploads/2020/11/13/queens.jpg\" style=\"width: 600px; height: 268px;\" />\n<pre>\n<strong>输入:</strong>n = 4\n<strong>输出:</strong>[[\".Q..\",\"...Q\",\"Q...\",\"..Q.\"],[\"..Q.\",\"Q...\",\"...Q\",\".Q..\"]]\n<strong>解释:</strong>如上图所示,4 皇后问题存在两个不同的解法。\n</pre>\n\n<p><strong>示例 2:</strong></p>\n\n<pre>\n<strong>输入:</strong>n = 1\n<strong>输出:</strong>[[\"Q\"]]\n</pre>\n\n<p> </p>\n\n<p><strong>提示:</strong></p>\n\n<ul>\n\t<li><code>1 <= n <= 9</code></li>\n</ul>\n</div>\n</div>\n",
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