leetcode-problemset/leetcode-cn/originData/largest-local-values-in-a-matrix.json

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            "categoryTitle": "Algorithms",
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            "title": "Largest Local Values in a Matrix",
            "titleSlug": "largest-local-values-in-a-matrix",
            "content": "<p>You are given an <code>n x n</code> integer matrix <code>grid</code>.</p>\n\n<p>Generate an integer matrix <code>maxLocal</code> of size <code>(n - 2) x (n - 2)</code> such that:</p>\n\n<ul>\n\t<li><code>maxLocal[i][j]</code> is equal to the <strong>largest</strong> value of the <code>3 x 3</code> matrix in <code>grid</code> centered around row <code>i + 1</code> and column <code>j + 1</code>.</li>\n</ul>\n\n<p>In other words, we want to find the largest value in every contiguous <code>3 x 3</code> matrix in <code>grid</code>.</p>\n\n<p>Return <em>the generated matrix</em>.</p>\n\n<p>&nbsp;</p>\n<p><strong class=\"example\">Example 1:</strong></p>\n<img alt=\"\" src=\"https://assets.leetcode.com/uploads/2022/06/21/ex1.png\" style=\"width: 371px; height: 210px;\" />\n<pre>\n<strong>Input:</strong> grid = [[9,9,8,1],[5,6,2,6],[8,2,6,4],[6,2,2,2]]\n<strong>Output:</strong> [[9,9],[8,6]]\n<strong>Explanation:</strong> The diagram above shows the original matrix and the generated matrix.\nNotice that each value in the generated matrix corresponds to the largest value of a contiguous 3 x 3 matrix in grid.</pre>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n<img alt=\"\" src=\"https://assets.leetcode.com/uploads/2022/07/02/ex2new2.png\" style=\"width: 436px; height: 240px;\" />\n<pre>\n<strong>Input:</strong> grid = [[1,1,1,1,1],[1,1,1,1,1],[1,1,2,1,1],[1,1,1,1,1],[1,1,1,1,1]]\n<strong>Output:</strong> [[2,2,2],[2,2,2],[2,2,2]]\n<strong>Explanation:</strong> Notice that the 2 is contained within every contiguous 3 x 3 matrix in grid.\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>n == grid.length == grid[i].length</code></li>\n\t<li><code>3 &lt;= n &lt;= 100</code></li>\n\t<li><code>1 &lt;= grid[i][j] &lt;= 100</code></li>\n</ul>\n",
            "translatedTitle": "矩阵中的局部最大值",
            "translatedContent": "<p>给你一个大小为 <code>n x n</code> 的整数矩阵 <code>grid</code> 。</p>\n\n<p>生成一个大小为&nbsp;<code>(n - 2) x (n - 2)</code> 的整数矩阵&nbsp; <code>maxLocal</code> ，并满足：</p>\n\n<ul>\n\t<li><code>maxLocal[i][j]</code> 等于 <code>grid</code> 中以 <code>i + 1</code> 行和 <code>j + 1</code> 列为中心的 <code>3 x 3</code> 矩阵中的 <strong>最大值</strong> 。</li>\n</ul>\n\n<p>换句话说，我们希望找出 <code>grid</code> 中每个&nbsp;<code>3 x 3</code> 矩阵中的最大值。</p>\n\n<p>返回生成的矩阵。</p>\n\n<p>&nbsp;</p>\n\n<p><strong>示例 1：</strong></p>\n\n<p><img alt=\"\" src=\"https://assets.leetcode.com/uploads/2022/06/21/ex1.png\" style=\"width: 371px; height: 210px;\" /></p>\n\n<pre>\n<strong>输入：</strong>grid = [[9,9,8,1],[5,6,2,6],[8,2,6,4],[6,2,2,2]]\n<strong>输出：</strong>[[9,9],[8,6]]\n<strong>解释：</strong>原矩阵和生成的矩阵如上图所示。\n注意，生成的矩阵中，每个值都对应 grid 中一个相接的 3 x 3 矩阵的最大值。</pre>\n\n<p><strong>示例 2：</strong></p>\n\n<p><img alt=\"\" src=\"https://assets.leetcode.com/uploads/2022/07/02/ex2new2.png\" style=\"width: 436px; height: 240px;\" /></p>\n\n<pre>\n<strong>输入：</strong>grid = [[1,1,1,1,1],[1,1,1,1,1],[1,1,2,1,1],[1,1,1,1,1],[1,1,1,1,1]]\n<strong>输出：</strong>[[2,2,2],[2,2,2],[2,2,2]]\n<strong>解释：</strong>注意，2 包含在 grid 中每个 3 x 3 的矩阵中。\n</pre>\n\n<p>&nbsp;</p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li><code>n == grid.length == grid[i].length</code></li>\n\t<li><code>3 &lt;= n &lt;= 100</code></li>\n\t<li><code>1 &lt;= grid[i][j] &lt;= 100</code></li>\n</ul>\n",
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