leetcode-problemset/leetcode-cn/originData/minimum-operations-to-make-the-array-alternating.json

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            "title": "Minimum Operations to Make the Array Alternating",
            "titleSlug": "minimum-operations-to-make-the-array-alternating",
            "content": "<p>You are given a <strong>0-indexed</strong> array <code>nums</code> consisting of <code>n</code> positive integers.</p>\n\n<p>The array <code>nums</code> is called <strong>alternating</strong> if:</p>\n\n<ul>\n\t<li><code>nums[i - 2] == nums[i]</code>, where <code>2 &lt;= i &lt;= n - 1</code>.</li>\n\t<li><code>nums[i - 1] != nums[i]</code>, where <code>1 &lt;= i &lt;= n - 1</code>.</li>\n</ul>\n\n<p>In one <strong>operation</strong>, you can choose an index <code>i</code> and <strong>change</strong> <code>nums[i]</code> into <strong>any</strong> positive integer.</p>\n\n<p>Return <em>the <strong>minimum number of operations</strong> required to make the array alternating</em>.</p>\n\n<p>&nbsp;</p>\n<p><strong>Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> nums = [3,1,3,2,4,3]\n<strong>Output:</strong> 3\n<strong>Explanation:</strong>\nOne way to make the array alternating is by converting it to [3,1,3,<u><strong>1</strong></u>,<u><strong>3</strong></u>,<u><strong>1</strong></u>].\nThe number of operations required in this case is 3.\nIt can be proven that it is not possible to make the array alternating in less than 3 operations. \n</pre>\n\n<p><strong>Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> nums = [1,2,2,2,2]\n<strong>Output:</strong> 2\n<strong>Explanation:</strong>\nOne way to make the array alternating is by converting it to [1,2,<u><strong>1</strong></u>,2,<u><strong>1</strong></u>].\nThe number of operations required in this case is 2.\nNote that the array cannot be converted to [<u><strong>2</strong></u>,2,2,2,2] because in this case nums[0] == nums[1] which violates the conditions of an alternating array.\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= nums.length &lt;= 10<sup>5</sup></code></li>\n\t<li><code>1 &lt;= nums[i] &lt;= 10<sup>5</sup></code></li>\n</ul>\n",
            "translatedTitle": "使数组变成交替数组的最少操作数",
            "translatedContent": "<p>给你一个下标从 <strong>0</strong> 开始的数组 <code>nums</code> ，该数组由 <code>n</code> 个正整数组成。</p>\n\n<p>如果满足下述条件，则数组 <code>nums</code> 是一个 <strong>交替数组</strong> ：</p>\n\n<ul>\n\t<li><code>nums[i - 2] == nums[i]</code> ，其中 <code>2 &lt;= i &lt;= n - 1</code> 。</li>\n\t<li><code>nums[i - 1] != nums[i]</code> ，其中 <code>1 &lt;= i &lt;= n - 1</code> 。</li>\n</ul>\n\n<p>在一步 <strong>操作</strong> 中，你可以选择下标 <code>i</code> 并将 <code>nums[i]</code> <strong>更改</strong> 为 <strong>任一</strong> 正整数。</p>\n\n<p>返回使数组变成交替数组的 <strong>最少操作数</strong> 。</p>\n\n<p>&nbsp;</p>\n\n<p><strong>示例 1：</strong></p>\n\n<pre>\n<strong>输入：</strong>nums = [3,1,3,2,4,3]\n<strong>输出：</strong>3\n<strong>解释：</strong>\n使数组变成交替数组的方法之一是将该数组转换为 [3,1,3,<em><strong>1</strong></em>,<em><strong>3</strong></em>,<em><strong>1</strong></em>] 。\n在这种情况下，操作数为 3 。\n可以证明，操作数少于 3 的情况下，无法使数组变成交替数组。</pre>\n\n<p><strong>示例 2：</strong></p>\n\n<pre>\n<strong>输入：</strong>nums = [1,2,2,2,2]\n<strong>输出：</strong>2\n<strong>解释：</strong>\n使数组变成交替数组的方法之一是将该数组转换为 [1,2,<em><strong>1</strong></em>,2,<em><strong>1</strong></em>].\n在这种情况下，操作数为 2 。\n注意，数组不能转换成 [<em><strong>2</strong></em>,2,2,2,2] 。因为在这种情况下，nums[0] == nums[1]，不满足交替数组的条件。\n</pre>\n\n<p>&nbsp;</p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= nums.length &lt;= 10<sup>5</sup></code></li>\n\t<li><code>1 &lt;= nums[i] &lt;= 10<sup>5</sup></code></li>\n</ul>\n",
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