mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
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192 lines
23 KiB
JSON
192 lines
23 KiB
JSON
{
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"boundTopicId": 1434,
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"title": "Number of Islands",
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"titleSlug": "number-of-islands",
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"content": "<p>Given an <code>m x n</code> 2D binary grid <code>grid</code> which represents a map of <code>'1'</code>s (land) and <code>'0'</code>s (water), return <em>the number of islands</em>.</p>\n\n<p>An <strong>island</strong> is surrounded by water and is formed by connecting adjacent lands horizontally or vertically. You may assume all four edges of the grid are all surrounded by water.</p>\n\n<p> </p>\n<p><strong class=\"example\">Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> grid = [\n ["1","1","1","1","0"],\n ["1","1","0","1","0"],\n ["1","1","0","0","0"],\n ["0","0","0","0","0"]\n]\n<strong>Output:</strong> 1\n</pre>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> grid = [\n ["1","1","0","0","0"],\n ["1","1","0","0","0"],\n ["0","0","1","0","0"],\n ["0","0","0","1","1"]\n]\n<strong>Output:</strong> 3\n</pre>\n\n<p> </p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>m == grid.length</code></li>\n\t<li><code>n == grid[i].length</code></li>\n\t<li><code>1 <= m, n <= 300</code></li>\n\t<li><code>grid[i][j]</code> is <code>'0'</code> or <code>'1'</code>.</li>\n</ul>\n",
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"translatedTitle": "岛屿数量",
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"translatedContent": "<p>给你一个由 <code>'1'</code>（陆地）和 <code>'0'</code>（水）组成的的二维网格，请你计算网格中岛屿的数量。</p>\n\n<p>岛屿总是被水包围，并且每座岛屿只能由水平方向和/或竖直方向上相邻的陆地连接形成。</p>\n\n<p>此外，你可以假设该网格的四条边均被水包围。</p>\n\n<p> </p>\n\n<p><strong>示例 1：</strong></p>\n\n<pre>\n<strong>输入：</strong>grid = [\n [\"1\",\"1\",\"1\",\"1\",\"0\"],\n [\"1\",\"1\",\"0\",\"1\",\"0\"],\n [\"1\",\"1\",\"0\",\"0\",\"0\"],\n [\"0\",\"0\",\"0\",\"0\",\"0\"]\n]\n<strong>输出：</strong>1\n</pre>\n\n<p><strong>示例 2：</strong></p>\n\n<pre>\n<strong>输入：</strong>grid = [\n [\"1\",\"1\",\"0\",\"0\",\"0\"],\n [\"1\",\"1\",\"0\",\"0\",\"0\"],\n [\"0\",\"0\",\"1\",\"0\",\"0\"],\n [\"0\",\"0\",\"0\",\"1\",\"1\"]\n]\n<strong>输出：</strong>3\n</pre>\n\n<p> </p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li><code>m == grid.length</code></li>\n\t<li><code>n == grid[i].length</code></li>\n\t<li><code>1 <= m, n <= 300</code></li>\n\t<li><code>grid[i][j]</code> 的值为 <code>'0'</code> 或 <code>'1'</code></li>\n</ul>\n",
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