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"translatedContent": "<p>给定一个 <code>m x n</code> 整数矩阵 <code>matrix</code> ,找出其中 <strong>最长递增路径</strong> 的长度。</p>\n\n<p>对于每个单元格,你可以往上,下,左,右四个方向移动。 你 <strong>不能</strong> 在 <strong>对角线</strong> 方向上移动或移动到 <strong>边界外</strong>(即不允许环绕)。</p>\n\n<p> </p>\n\n<p><strong>示例 1</strong></p>\n<img alt=\"\" src=\"https://assets.leetcode.com/uploads/2021/01/05/grid1.jpg\" style=\"width: 242px; height: 242px;\" />\n<pre>\n<strong>输入:</strong>matrix = [[9,9,4],[6,6,8],[2,1,1]]\n<strong>输出:</strong>4 \n<strong>解释:</strong>最长递增路径为 <code>[1, 2, 6, 9]</code>。</pre>\n\n<p><strong>示例 2</strong></p>\n<img alt=\"\" src=\"https://assets.leetcode.com/uploads/2021/01/27/tmp-grid.jpg\" style=\"width: 253px; height: 253px;\" />\n<pre>\n<strong>输入:</strong>matrix = [[3,4,5],[3,2,6],[2,2,1]]\n<strong>输出:</strong>4 \n<strong>解释:</strong>最长递增路径是 <code>[3, 4, 5, 6]</code>。注意不允许在对角线方向上移动。\n</pre>\n\n<p><strong>示例 3</strong></p>\n\n<pre>\n<strong>输入:</strong>matrix = [[1]]\n<strong>输出:</strong>1\n</pre>\n\n<p> </p>\n\n<p><strong>提示:</strong></p>\n\n<ul>\n\t<li><code>m == matrix.length</code></li>\n\t<li><code>n == matrix[i].length</code></li>\n\t<li><code>1 <= m, n <= 200</code></li>\n\t<li><code>0 <= matrix[i][j] <= 2<sup>31</sup> - 1</code></li>\n</ul>\n",
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