leetcode-problemset/leetcode-cn/originData/transform-array-to-all-equal-elements.json

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        "question": {
            "questionId": "3876",
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            "categoryTitle": "Algorithms",
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            "title": "Transform Array to All Equal Elements",
            "titleSlug": "transform-array-to-all-equal-elements",
            "content": "<p>You are given an integer array <code>nums</code> of size <code>n</code> containing only <code>1</code> and <code>-1</code>, and an integer <code>k</code>.</p>\n\n<p>You can perform the following operation at most <code>k</code> times:</p>\n\n<ul>\n\t<li>\n\t<p>Choose an index <code>i</code> (<code>0 &lt;= i &lt; n - 1</code>), and <strong>multiply</strong> both <code>nums[i]</code> and <code>nums[i + 1]</code> by <code>-1</code>.</p>\n\t</li>\n</ul>\n\n<p><strong>Note</strong> that you can choose the same index <code data-end=\"459\" data-start=\"456\">i</code> more than once in <strong>different</strong> operations.</p>\n\n<p>Return <code>true</code> if it is possible to make all elements of the array <strong>equal</strong> after at most <code>k</code> operations, and <code>false</code> otherwise.</p>\n\n<p>&nbsp;</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\">nums = [1,-1,1,-1,1], k = 3</span></p>\n\n<p><strong>Output:</strong> <span class=\"example-io\">true</span></p>\n\n<p><strong>Explanation:</strong></p>\n\n<p>We can make all elements in the array equal in 2 operations as follows:</p>\n\n<ul>\n\t<li>Choose index <code>i = 1</code>, and multiply both <code>nums[1]</code> and <code>nums[2]</code> by -1. Now <code>nums = [1,1,-1,-1,1]</code>.</li>\n\t<li>Choose index <code>i = 2</code>, and multiply both <code>nums[2]</code> and <code>nums[3]</code> by -1. Now <code>nums = [1,1,1,1,1]</code>.</li>\n</ul>\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\">nums = [-1,-1,-1,1,1,1], k = 5</span></p>\n\n<p><strong>Output:</strong> <span class=\"example-io\">false</span></p>\n\n<p><strong>Explanation:</strong></p>\n\n<p>It is not possible to make all array elements equal in at most 5 operations.</p>\n</div>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= n == nums.length &lt;= 10<sup>5</sup></code></li>\n\t<li><code>nums[i]</code> is either -1 or 1.</li>\n\t<li><code>1 &lt;= k &lt;= n</code></li>\n</ul>\n",
            "translatedTitle": "数组元素相等转换",
            "translatedContent": "<p>给你一个大小为 <code>n</code> 的整数数组 <code>nums</code>，其中只包含 <code>1</code> 和 <code>-1</code>，以及一个整数 <code>k</code>。</p>\n\n<p>你可以最多进行 <code>k</code> 次以下操作：</p>\n\n<ul>\n\t<li>\n\t<p>选择一个下标&nbsp;<code>i</code>（<code>0 &lt;= i &lt; n - 1</code>），然后将 <code>nums[i]</code> 和 <code>nums[i + 1]</code> 同时&nbsp;<strong>乘以</strong>&nbsp;<code>-1</code>。</p>\n\t</li>\n</ul>\n\n<p><strong>注意：</strong>你可以在&nbsp;<strong>不同&nbsp;</strong>的操作中多次选择相同的下标&nbsp;<code>i</code>。</p>\n\n<p>如果在最多 <code>k</code> 次操作后可以使数组的所有元素相等，则返回 <code>true</code>；否则，返回 <code>false</code>。</p>\n\n<p>&nbsp;</p>\n\n<p><strong class=\"example\">示例 1：</strong></p>\n\n<div class=\"example-block\">\n<p><strong>输入：</strong> <span class=\"example-io\">nums = [1,-1,1,-1,1], k = 3</span></p>\n\n<p><strong>输出：</strong> <span class=\"example-io\">true</span></p>\n\n<p><strong>解释：</strong></p>\n\n<p>我们可以通过以下两次操作使数组的所有元素相等：</p>\n\n<ul>\n\t<li>选择下标&nbsp;<code>i = 1</code>，将 <code>nums[1]</code> 和 <code>nums[2]</code> 同时乘以 -1。此时 <code>nums = [1,1,-1,-1,1]</code>。</li>\n\t<li>选择下标&nbsp;<code>i = 2</code>，将 <code>nums[2]</code> 和 <code>nums[3]</code> 同时乘以 -1。此时 <code>nums = [1,1,1,1,1]</code>。</li>\n</ul>\n</div>\n\n<p><strong class=\"example\">示例 2：</strong></p>\n\n<div class=\"example-block\">\n<p><strong>输入：</strong> <span class=\"example-io\">nums = [-1,-1,-1,1,1,1], k = 5</span></p>\n\n<p><strong>输出：</strong> <span class=\"example-io\">false</span></p>\n\n<p><strong>解释：</strong></p>\n\n<p>在最多 5 次操作内，无法使数组的所有元素相等。</p>\n</div>\n\n<p>&nbsp;</p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= n == nums.length &lt;= 10<sup>5</sup></code></li>\n\t<li><code>nums[i]</code> 的值为 <code>-1</code> 或 <code>1</code>。</li>\n\t<li><code>1 &lt;= k &lt;= n</code></li>\n</ul>\n",
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