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"translatedContent": "<p>编写一个高效的算法来搜索 <code><em>m</em> x <em>n</em></code> 矩阵 <code>matrix</code> 中的一个目标值 <code>target</code> 。该矩阵具有以下特性:</p>\n\n<ul>\n\t<li>每行的元素从左到右升序排列。</li>\n\t<li>每列的元素从上到下升序排列。</li>\n</ul>\n\n<p> </p>\n\n<p><b>示例 1:</b></p>\n<img alt=\"\" src=\"https://assets.leetcode-cn.com/aliyun-lc-upload/uploads/2020/11/25/searchgrid2.jpg\" />\n<pre>\n<b>输入:</b>matrix = [[1,4,7,11,15],[2,5,8,12,19],[3,6,9,16,22],[10,13,14,17,24],[18,21,23,26,30]], target = 5\n<b>输出:</b>true\n</pre>\n\n<p><b>示例 2:</b></p>\n<img alt=\"\" src=\"https://assets.leetcode-cn.com/aliyun-lc-upload/uploads/2020/11/25/searchgrid.jpg\" />\n<pre>\n<b>输入:</b>matrix = [[1,4,7,11,15],[2,5,8,12,19],[3,6,9,16,22],[10,13,14,17,24],[18,21,23,26,30]], target = 20\n<b>输出:</b>false\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 <= n, m <= 300</code></li>\n\t<li><code>-10<sup>9</sup> <= matrix[i][j] <= 10<sup>9</sup></code></li>\n\t<li>每行的所有元素从左到右升序排列</li>\n\t<li>每列的所有元素从上到下升序排列</li>\n\t<li><code>-10<sup>9</sup> <= target <= 10<sup>9</sup></code></li>\n</ul>\n",
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