leetcode-problemset/leetcode-cn/originData/lucky-numbers-in-a-matrix.json

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        "question": {
            "questionId": "1496",
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            "categoryTitle": "Algorithms",
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            "title": "Lucky Numbers in a Matrix",
            "titleSlug": "lucky-numbers-in-a-matrix",
            "content": "<p>Given an <code>m x n</code> matrix of <strong>distinct </strong>numbers, return <em>all <strong>lucky numbers</strong> in the matrix in <strong>any </strong>order</em>.</p>\n\n<p>A <strong>lucky number</strong> is an element of the matrix such that it is the minimum element in its row and maximum in its column.</p>\n\n<p>&nbsp;</p>\n<p><strong>Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> matrix = [[3,7,8],[9,11,13],[15,16,17]]\n<strong>Output:</strong> [15]\n<strong>Explanation:</strong> 15 is the only lucky number since it is the minimum in its row and the maximum in its column.\n</pre>\n\n<p><strong>Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> matrix = [[1,10,4,2],[9,3,8,7],[15,16,17,12]]\n<strong>Output:</strong> [12]\n<strong>Explanation:</strong> 12 is the only lucky number since it is the minimum in its row and the maximum in its column.\n</pre>\n\n<p><strong>Example 3:</strong></p>\n\n<pre>\n<strong>Input:</strong> matrix = [[7,8],[1,2]]\n<strong>Output:</strong> [7]\n<strong>Explanation:</strong> 7 is the only lucky number since it is the minimum in its row and the maximum in its column.\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>m == mat.length</code></li>\n\t<li><code>n == mat[i].length</code></li>\n\t<li><code>1 &lt;= n, m &lt;= 50</code></li>\n\t<li><code>1 &lt;= matrix[i][j] &lt;= 10<sup>5</sup></code>.</li>\n\t<li>All elements in the matrix are distinct.</li>\n</ul>\n",
            "translatedTitle": "矩阵中的幸运数",
            "translatedContent": "<p>给你一个 <code>m * n</code> 的矩阵，矩阵中的数字 <strong>各不相同</strong> 。请你按 <strong>任意</strong> 顺序返回矩阵中的所有幸运数。</p>\n\n<p><strong>幸运数</strong> 是指矩阵中满足同时下列两个条件的元素：</p>\n\n<ul>\n\t<li>在同一行的所有元素中最小</li>\n\t<li>在同一列的所有元素中最大</li>\n</ul>\n\n<p>&nbsp;</p>\n\n<p><strong>示例 1：</strong></p>\n\n<pre>\n<strong>输入：</strong>matrix = [[3,7,8],[9,11,13],[15,16,17]]\n<strong>输出：</strong>[15]\n<strong>解释：</strong>15 是唯一的幸运数，因为它是其所在行中的最小值，也是所在列中的最大值。\n</pre>\n\n<p><strong>示例 2：</strong></p>\n\n<pre>\n<strong>输入：</strong>matrix = [[1,10,4,2],[9,3,8,7],[15,16,17,12]]\n<strong>输出：</strong>[12]\n<strong>解释：</strong>12 是唯一的幸运数，因为它是其所在行中的最小值，也是所在列中的最大值。\n</pre>\n\n<p><strong>示例 3：</strong></p>\n\n<pre>\n<strong>输入：</strong>matrix = [[7,8],[1,2]]\n<strong>输出：</strong>[7]\n<strong>解释：</strong>7是唯一的幸运数字，因为它是行中的最小值，列中的最大值。\n</pre>\n\n<p>&nbsp;</p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li><code>m == mat.length</code></li>\n\t<li><code>n == mat[i].length</code></li>\n\t<li><code>1 &lt;= n, m &lt;= 50</code></li>\n\t<li><code>1 &lt;=&nbsp;matrix[i][j]&nbsp;&lt;= 10^5</code></li>\n\t<li>矩阵中的所有元素都是不同的</li>\n</ul>\n",
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