mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
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180 lines
18 KiB
JSON
180 lines
18 KiB
JSON
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"title": "Minimum Number of Flips to Make Binary Grid Palindromic II",
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"titleSlug": "minimum-number-of-flips-to-make-binary-grid-palindromic-ii",
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"content": "<p>You are given an <code>m x n</code> binary matrix <code>grid</code>.</p>\n\n<p>A row or column is considered <strong>palindromic</strong> if its values read the same forward and backward.</p>\n\n<p>You can <strong>flip</strong> any number of cells in <code>grid</code> from <code>0</code> to <code>1</code>, or from <code>1</code> to <code>0</code>.</p>\n\n<p>Return the <strong>minimum</strong> number of cells that need to be flipped to make <strong>all</strong> rows and columns <strong>palindromic</strong>, and the total number of <code>1</code>'s in <code>grid</code> <strong>divisible</strong> by <code>4</code>.</p>\n\n<p> </p>\n<p><strong class=\"example\">Example 1:</strong></p>\n\n<div class=\"example-block\">\n<p><strong>Input:</strong> <span class=\"example-io\">grid = [[1,0,0],[0,1,0],[0,0,1]]</span></p>\n\n<p><strong>Output:</strong> <span class=\"example-io\">3</span></p>\n\n<p><strong>Explanation:</strong></p>\n\n<p><img src=\"https://assets.leetcode.com/uploads/2024/08/01/image.png\" style=\"width: 400px; height: 105px;\" /></p>\n</div>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n\n<div class=\"example-block\">\n<p><strong>Input:</strong> <span class=\"example-io\">grid = [[0,1],[0,1],[0,0]]</span></p>\n\n<p><strong>Output:</strong> <span class=\"example-io\">2</span></p>\n\n<p><strong>Explanation:</strong></p>\n\n<p><img alt=\"\" src=\"https://assets.leetcode.com/uploads/2024/07/08/screenshot-from-2024-07-09-01-37-48.png\" style=\"width: 300px; height: 104px;\" /></p>\n</div>\n\n<p><strong class=\"example\">Example 3:</strong></p>\n\n<div class=\"example-block\">\n<p><strong>Input:</strong> <span class=\"example-io\">grid = [[1],[1]]</span></p>\n\n<p><strong>Output:</strong> <span class=\"example-io\">2</span></p>\n\n<p><strong>Explanation:</strong></p>\n\n<p><img alt=\"\" src=\"https://assets.leetcode.com/uploads/2024/08/01/screenshot-from-2024-08-01-23-05-26.png\" style=\"width: 200px; height: 70px;\" /></p>\n</div>\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 <= 2 * 10<sup>5</sup></code></li>\n\t<li><code>0 <= grid[i][j] <= 1</code></li>\n</ul>\n",
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"lang": "JavaScript",
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"code": "/**\n * @param {number[][]} grid\n * @return {number}\n */\nvar minFlips = function(grid) {\n \n};",
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"lang": "TypeScript",
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"langSlug": "typescript",
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"code": "function minFlips(grid: number[][]): number {\n \n};",
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"lang": "PHP",
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"code": "class Solution {\n\n /**\n * @param Integer[][] $grid\n * @return Integer\n */\n function minFlips($grid) {\n \n }\n}",
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"lang": "Kotlin",
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"code": "class Solution {\n fun minFlips(grid: Array<IntArray>): Int {\n \n }\n}",
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"lang": "Dart",
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"code": "class Solution {\n int minFlips(List<List<int>> grid) {\n \n }\n}",
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"code": "# @param {Integer[][]} grid\n# @return {Integer}\ndef min_flips(grid)\n \nend",
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"For each <code>(x, y)</code>, find <code>(m - 1 - x, y)</code>, <code>(m - 1 - x, n - 1 - y)</code>, and <code>(x, n - 1 - y)</code>; they should be the same.",
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"Note that we need to specially handle the middle row (column) if the number of rows (columns) is odd."
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