leetcode-problemset/leetcode-cn/originData/count-submatrices-with-all-ones.json

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            "title": "Count Submatrices With All Ones",
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            "content": "<p>Given an <code>m x n</code> binary matrix <code>mat</code>, <em>return the number of <strong>submatrices</strong> that have all ones</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/2021/10/27/ones1-grid.jpg\" style=\"width: 244px; height: 245px;\" />\n<pre>\n<strong>Input:</strong> mat = [[1,0,1],[1,1,0],[1,1,0]]\n<strong>Output:</strong> 13\n<strong>Explanation:</strong> \nThere are 6 rectangles of side 1x1.\nThere are 2 rectangles of side 1x2.\nThere are 3 rectangles of side 2x1.\nThere is 1 rectangle of side 2x2. \nThere is 1 rectangle of side 3x1.\nTotal number of rectangles = 6 + 2 + 3 + 1 + 1 = 13.\n</pre>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n<img alt=\"\" src=\"https://assets.leetcode.com/uploads/2021/10/27/ones2-grid.jpg\" style=\"width: 324px; height: 245px;\" />\n<pre>\n<strong>Input:</strong> mat = [[0,1,1,0],[0,1,1,1],[1,1,1,0]]\n<strong>Output:</strong> 24\n<strong>Explanation:</strong> \nThere are 8 rectangles of side 1x1.\nThere are 5 rectangles of side 1x2.\nThere are 2 rectangles of side 1x3. \nThere are 4 rectangles of side 2x1.\nThere are 2 rectangles of side 2x2. \nThere are 2 rectangles of side 3x1. \nThere is 1 rectangle of side 3x2. \nTotal number of rectangles = 8 + 5 + 2 + 4 + 2 + 2 + 1 = 24.\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= m, n &lt;= 150</code></li>\n\t<li><code>mat[i][j]</code> is either <code>0</code> or <code>1</code>.</li>\n</ul>\n",
            "translatedTitle": "统计全 1 子矩形",
            "translatedContent": "<p>给你一个&nbsp;<code>m x n</code>&nbsp;的二进制矩阵&nbsp;<code>mat</code>&nbsp;，请你返回有多少个&nbsp;<strong>子矩形</strong>&nbsp;的元素全部都是 1 。</p>\n\n<p>&nbsp;</p>\n\n<p><strong>示例 1：</strong></p>\n\n<p><img src=\"https://assets.leetcode.com/uploads/2021/10/27/ones1-grid.jpg\" /></p>\n\n<pre>\n<strong>输入：</strong>mat = [[1,0,1],[1,1,0],[1,1,0]]\n<strong>输出：</strong>13\n<strong>解释：\n</strong>有 <strong>6</strong>&nbsp;个 1x1 的矩形。\n有 <strong>2</strong> 个 1x2 的矩形。\n有 <strong>3</strong> 个 2x1 的矩形。\n有 <strong>1</strong> 个 2x2 的矩形。\n有 <strong>1</strong> 个 3x1 的矩形。\n矩形数目总共 = 6 + 2 + 3 + 1 + 1 = <strong>13</strong>&nbsp;。\n</pre>\n\n<p><strong>示例 2：</strong></p>\n\n<p><img src=\"https://assets.leetcode.com/uploads/2021/10/27/ones2-grid.jpg\" /></p>\n\n<pre>\n<strong>输入：</strong>mat = [[0,1,1,0],[0,1,1,1],[1,1,1,0]]\n<strong>输出：</strong>24\n<strong>解释：</strong>\n有 <strong>8</strong> 个 1x1 的子矩形。\n有 <strong>5</strong> 个 1x2 的子矩形。\n有 <strong>2</strong> 个 1x3 的子矩形。\n有 <strong>4</strong> 个 2x1 的子矩形。\n有 <strong>2</strong> 个 2x2 的子矩形。\n有 <strong>2</strong> 个 3x1 的子矩形。\n有 <strong>1</strong> 个 3x2 的子矩形。\n矩形数目总共 = 8 + 5 + 2 + 4 + 2 + 2 + 1 = <strong>24</strong><strong> 。</strong>\n\n</pre>\n\n<p>&nbsp;</p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= m, n &lt;= 150</code></li>\n\t<li><code>mat[i][j]</code>&nbsp;仅包含&nbsp;<code>0</code>&nbsp;或&nbsp;<code>1</code></li>\n</ul>\n",
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