leetcode-problemset/leetcode-cn/originData/pacific-atlantic-water-flow.json

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            "title": "Pacific Atlantic Water Flow",
            "titleSlug": "pacific-atlantic-water-flow",
            "content": "<p>There is an <code>m x n</code> rectangular island that borders both the <strong>Pacific Ocean</strong> and <strong>Atlantic Ocean</strong>. The <strong>Pacific Ocean</strong> touches the island&#39;s left and top edges, and the <strong>Atlantic Ocean</strong> touches the island&#39;s right and bottom edges.</p>\n\n<p>The island is partitioned into a grid of square cells. You are given an <code>m x n</code> integer matrix <code>heights</code> where <code>heights[r][c]</code> represents the <strong>height above sea level</strong> of the cell at coordinate <code>(r, c)</code>.</p>\n\n<p>The island receives a lot of rain, and the rain water can flow to neighboring cells directly north, south, east, and west if the neighboring cell&#39;s height is <strong>less than or equal to</strong> the current cell&#39;s height. Water can flow from any cell adjacent to an ocean into the ocean.</p>\n\n<p>Return <em>a <strong>2D list</strong> of grid coordinates </em><code>result</code><em> where </em><code>result[i] = [r<sub>i</sub>, c<sub>i</sub>]</code><em> denotes that rain water can flow from cell </em><code>(r<sub>i</sub>, c<sub>i</sub>)</code><em> to <strong>both</strong> the Pacific and Atlantic oceans</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/2021/06/08/waterflow-grid.jpg\" style=\"width: 400px; height: 400px;\" />\n<pre>\n<strong>Input:</strong> heights = [[1,2,2,3,5],[3,2,3,4,4],[2,4,5,3,1],[6,7,1,4,5],[5,1,1,2,4]]\n<strong>Output:</strong> [[0,4],[1,3],[1,4],[2,2],[3,0],[3,1],[4,0]]\n<strong>Explanation:</strong> The following cells can flow to the Pacific and Atlantic oceans, as shown below:\n[0,4]: [0,4] -&gt; Pacific Ocean \n&nbsp;      [0,4] -&gt; Atlantic Ocean\n[1,3]: [1,3] -&gt; [0,3] -&gt; Pacific Ocean \n&nbsp;      [1,3] -&gt; [1,4] -&gt; Atlantic Ocean\n[1,4]: [1,4] -&gt; [1,3] -&gt; [0,3] -&gt; Pacific Ocean \n&nbsp;      [1,4] -&gt; Atlantic Ocean\n[2,2]: [2,2] -&gt; [1,2] -&gt; [0,2] -&gt; Pacific Ocean \n&nbsp;      [2,2] -&gt; [2,3] -&gt; [2,4] -&gt; Atlantic Ocean\n[3,0]: [3,0] -&gt; Pacific Ocean \n&nbsp;      [3,0] -&gt; [4,0] -&gt; Atlantic Ocean\n[3,1]: [3,1] -&gt; [3,0] -&gt; Pacific Ocean \n&nbsp;      [3,1] -&gt; [4,1] -&gt; Atlantic Ocean\n[4,0]: [4,0] -&gt; Pacific Ocean \n       [4,0] -&gt; Atlantic Ocean\nNote that there are other possible paths for these cells to flow to the Pacific and Atlantic oceans.\n</pre>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> heights = [[1]]\n<strong>Output:</strong> [[0,0]]\n<strong>Explanation:</strong> The water can flow from the only cell to the Pacific and Atlantic oceans.\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>m == heights.length</code></li>\n\t<li><code>n == heights[r].length</code></li>\n\t<li><code>1 &lt;= m, n &lt;= 200</code></li>\n\t<li><code>0 &lt;= heights[r][c] &lt;= 10<sup>5</sup></code></li>\n</ul>\n",
            "translatedTitle": "太平洋大西洋水流问题",
            "translatedContent": "<p>有一个 <code>m × n</code> 的矩形岛屿，与 <strong>太平洋</strong> 和 <strong>大西洋</strong> 相邻。&nbsp;<strong>“太平洋”&nbsp;</strong>处于大陆的左边界和上边界，而 <strong>“大西洋”</strong> 处于大陆的右边界和下边界。</p>\n\n<p>这个岛被分割成一个由若干方形单元格组成的网格。给定一个 <code>m x n</code> 的整数矩阵&nbsp;<code>heights</code>&nbsp;，&nbsp;<code>heights[r][c]</code>&nbsp;表示坐标 <code>(r, c)</code> 上单元格 <strong>高于海平面的高度</strong> 。</p>\n\n<p>岛上雨水较多，如果相邻单元格的高度 <strong>小于或等于</strong> 当前单元格的高度，雨水可以直接向北、南、东、西流向相邻单元格。水可以从海洋附近的任何单元格流入海洋。</p>\n\n<p>返回网格坐标 <code>result</code>&nbsp;的 <strong>2D 列表</strong> ，其中&nbsp;<code>result[i] = [r<sub>i</sub>, c<sub>i</sub>]</code>&nbsp;表示雨水从单元格 <code>(ri, ci)</code> 流动 <strong>既可流向太平洋也可流向大西洋</strong> 。</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/2021/06/08/waterflow-grid.jpg\" /></p>\n\n<pre>\n<strong>输入:</strong> heights = [[1,2,2,3,5],[3,2,3,4,4],[2,4,5,3,1],[6,7,1,4,5],[5,1,1,2,4]]\n<strong>输出:</strong> [[0,4],[1,3],[1,4],[2,2],[3,0],[3,1],[4,0]]\n</pre>\n\n<p><strong>示例 2：</strong></p>\n\n<pre>\n<strong>输入:</strong> heights = [[2,1],[1,2]]\n<strong>输出:</strong> [[0,0],[0,1],[1,0],[1,1]]\n</pre>\n\n<p>&nbsp;</p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li><code>m == heights.length</code></li>\n\t<li><code>n == heights[r].length</code></li>\n\t<li><code>1 &lt;= m, n &lt;= 200</code></li>\n\t<li><code>0 &lt;= heights[r][c] &lt;= 10<sup>5</sup></code></li>\n</ul>\n",
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