leetcode-problemset/leetcode-cn/originData/minimum-swaps-to-arrange-a-binary-grid.json

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            "questionId": "1658",
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            "categoryTitle": "Algorithms",
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            "title": "Minimum Swaps to Arrange a Binary Grid",
            "titleSlug": "minimum-swaps-to-arrange-a-binary-grid",
            "content": "<p>Given an <code>n x n</code> binary <code>grid</code>, in one step you can choose two <strong>adjacent rows</strong> of the grid and swap them.</p>\n\n<p>A grid is said to be <strong>valid</strong> if all the cells above the main diagonal are <strong>zeros</strong>.</p>\n\n<p>Return <em>the minimum number of steps</em> needed to make the grid valid, or <strong>-1</strong> if the grid cannot be valid.</p>\n\n<p>The main diagonal of a grid is the diagonal that starts at cell <code>(1, 1)</code> and ends at cell <code>(n, n)</code>.</p>\n\n<p>&nbsp;</p>\n<p><strong>Example 1:</strong></p>\n<img alt=\"\" src=\"https://assets.leetcode.com/uploads/2020/07/28/fw.jpg\" style=\"width: 750px; height: 141px;\" />\n<pre>\n<strong>Input:</strong> grid = [[0,0,1],[1,1,0],[1,0,0]]\n<strong>Output:</strong> 3\n</pre>\n\n<p><strong>Example 2:</strong></p>\n<img alt=\"\" src=\"https://assets.leetcode.com/uploads/2020/07/16/e2.jpg\" style=\"width: 270px; height: 270px;\" />\n<pre>\n<strong>Input:</strong> grid = [[0,1,1,0],[0,1,1,0],[0,1,1,0],[0,1,1,0]]\n<strong>Output:</strong> -1\n<strong>Explanation:</strong> All rows are similar, swaps have no effect on the grid.\n</pre>\n\n<p><strong>Example 3:</strong></p>\n<img alt=\"\" src=\"https://assets.leetcode.com/uploads/2020/07/16/e3.jpg\" style=\"width: 200px; height: 200px;\" />\n<pre>\n<strong>Input:</strong> grid = [[1,0,0],[1,1,0],[1,1,1]]\n<strong>Output:</strong> 0\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>n == grid.length</code> <code>== grid[i].length</code></li>\n\t<li><code>1 &lt;= n &lt;= 200</code></li>\n\t<li><code>grid[i][j]</code> is either <code>0</code> or <code>1</code></li>\n</ul>\n",
            "translatedTitle": "排布二进制网格的最少交换次数",
            "translatedContent": "<p>给你一个&nbsp;<code>n&nbsp;x n</code>&nbsp;的二进制网格&nbsp;<code>grid</code>，每一次操作中，你可以选择网格的&nbsp;<strong>相邻两行</strong>&nbsp;进行交换。</p>\n\n<p>一个符合要求的网格需要满足主对角线以上的格子全部都是 <strong>0</strong>&nbsp;。</p>\n\n<p>请你返回使网格满足要求的最少操作次数，如果无法使网格符合要求，请你返回 <strong>-1</strong>&nbsp;。</p>\n\n<p>主对角线指的是从&nbsp;<code>(1, 1)</code>&nbsp;到&nbsp;<code>(n, n)</code>&nbsp;的这些格子。</p>\n\n<p>&nbsp;</p>\n\n<p><strong>示例 1：</strong></p>\n\n<p><img alt=\"\" src=\"https://assets.leetcode-cn.com/aliyun-lc-upload/uploads/2020/08/02/fw.jpg\" style=\"height: 141px; width: 750px;\"></p>\n\n<pre><strong>输入：</strong>grid = [[0,0,1],[1,1,0],[1,0,0]]\n<strong>输出：</strong>3\n</pre>\n\n<p><strong>示例 2：</strong></p>\n\n<p><img alt=\"\" src=\"https://assets.leetcode-cn.com/aliyun-lc-upload/uploads/2020/08/02/e2.jpg\" style=\"height: 270px; width: 270px;\"></p>\n\n<pre><strong>输入：</strong>grid = [[0,1,1,0],[0,1,1,0],[0,1,1,0],[0,1,1,0]]\n<strong>输出：</strong>-1\n<strong>解释：</strong>所有行都是一样的，交换相邻行无法使网格符合要求。\n</pre>\n\n<p><strong>示例 3：</strong></p>\n\n<p><img alt=\"\" src=\"https://assets.leetcode-cn.com/aliyun-lc-upload/uploads/2020/08/02/e3.jpg\" style=\"height: 210px; width: 210px;\"></p>\n\n<pre><strong>输入：</strong>grid = [[1,0,0],[1,1,0],[1,1,1]]\n<strong>输出：</strong>0\n</pre>\n\n<p>&nbsp;</p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li><code>n == grid.length</code></li>\n\t<li><code>n == grid[i].length</code></li>\n\t<li><code>1 &lt;= n&nbsp;&lt;= 200</code></li>\n\t<li><code>grid[i][j]</code>&nbsp;要么是&nbsp;<code>0</code>&nbsp;要么是&nbsp;<code>1</code>&nbsp;。</li>\n</ul>\n",
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