leetcode-problemset/leetcode-cn/originData/apply-operations-to-an-array.json

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        "question": {
            "questionId": "2551",
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            "categoryTitle": "Algorithms",
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            "title": "Apply Operations to an Array",
            "titleSlug": "apply-operations-to-an-array",
            "content": "<p>You are given a <strong>0-indexed</strong> array <code>nums</code> of size <code>n</code> consisting of <strong>non-negative</strong> integers.</p>\n\n<p>You need to apply <code>n - 1</code> operations to this array where, in the <code>i<sup>th</sup></code> operation (<strong>0-indexed</strong>), you will apply the following on the <code>i<sup>th</sup></code> element of <code>nums</code>:</p>\n\n<ul>\n\t<li>If <code>nums[i] == nums[i + 1]</code>, then multiply <code>nums[i]</code> by <code>2</code> and set <code>nums[i + 1]</code> to <code>0</code>. Otherwise, you skip this operation.</li>\n</ul>\n\n<p>After performing <strong>all</strong> the operations, <strong>shift</strong> all the <code>0</code>&#39;s to the <strong>end</strong> of the array.</p>\n\n<ul>\n\t<li>For example, the array <code>[1,0,2,0,0,1]</code> after shifting all its <code>0</code>&#39;s to the end, is <code>[1,2,1,0,0,0]</code>.</li>\n</ul>\n\n<p>Return <em>the resulting array</em>.</p>\n\n<p><strong>Note</strong> that the operations are applied <strong>sequentially</strong>, not all at once.</p>\n\n<p>&nbsp;</p>\n<p><strong class=\"example\">Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> nums = [1,2,2,1,1,0]\n<strong>Output:</strong> [1,4,2,0,0,0]\n<strong>Explanation:</strong> We do the following operations:\n- i = 0: nums[0] and nums[1] are not equal, so we skip this operation.\n- i = 1: nums[1] and nums[2] are equal, we multiply nums[1] by 2 and change nums[2] to 0. The array becomes [1,<strong><u>4</u></strong>,<strong><u>0</u></strong>,1,1,0].\n- i = 2: nums[2] and nums[3] are not equal, so we skip this operation.\n- i = 3: nums[3] and nums[4] are equal, we multiply nums[3] by 2 and change nums[4] to 0. The array becomes [1,4,0,<strong><u>2</u></strong>,<strong><u>0</u></strong>,0].\n- i = 4: nums[4] and nums[5] are equal, we multiply nums[4] by 2 and change nums[5] to 0. The array becomes [1,4,0,2,<strong><u>0</u></strong>,<strong><u>0</u></strong>].\nAfter that, we shift the 0&#39;s to the end, which gives the array [1,4,2,0,0,0].\n</pre>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> nums = [0,1]\n<strong>Output:</strong> [1,0]\n<strong>Explanation:</strong> No operation can be applied, we just shift the 0 to the end.\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>2 &lt;= nums.length &lt;= 2000</code></li>\n\t<li><code>0 &lt;= nums[i] &lt;= 1000</code></li>\n</ul>\n",
            "translatedTitle": "对数组执行操作",
            "translatedContent": "<p>给你一个下标从 <strong>0</strong> 开始的数组 <code>nums</code> ，数组大小为 <code>n</code> ，且由 <strong>非负</strong> 整数组成。</p>\n\n<p>你需要对数组执行 <code>n - 1</code> 步操作，其中第 <code>i</code> 步操作（从 <strong>0</strong> 开始计数）要求对 <code>nums</code> 中第 <code>i</code> 个元素执行下述指令：</p>\n\n<ul>\n\t<li>如果 <code>nums[i] == nums[i + 1]</code> ，则 <code>nums[i]</code> 的值变成原来的 <code>2</code> 倍，<code>nums[i + 1]</code> 的值变成 <code>0</code> 。否则，跳过这步操作。</li>\n</ul>\n\n<p>在执行完 <strong>全部</strong> 操作后，将所有 <code>0</code> <strong>移动</strong> 到数组的 <strong>末尾</strong> 。</p>\n\n<ul>\n\t<li>例如，数组 <code>[1,0,2,0,0,1]</code> 将所有 <code>0</code> 移动到末尾后变为 <code>[1,2,1,0,0,0]</code> 。</li>\n</ul>\n\n<p>返回结果数组。</p>\n\n<p><strong>注意</strong> 操作应当 <strong>依次有序</strong> 执行，而不是一次性全部执行。</p>\n\n<p>&nbsp;</p>\n\n<p><strong>示例 1：</strong></p>\n\n<pre>\n<strong>输入：</strong>nums = [1,2,2,1,1,0]\n<strong>输出：</strong>[1,4,2,0,0,0]\n<strong>解释：</strong>执行以下操作：\n- i = 0: nums[0] 和 nums[1] 不相等，跳过这步操作。\n- i = 1: nums[1] 和 nums[2] 相等，nums[1] 的值变成原来的 2 倍，nums[2] 的值变成 0 。数组变成 [1,<em><strong>4</strong></em>,<em><strong>0</strong></em>,1,1,0] 。\n- i = 2: nums[2] 和 nums[3] 不相等，所以跳过这步操作。\n- i = 3: nums[3] 和 nums[4] 相等，nums[3] 的值变成原来的 2 倍，nums[4] 的值变成 0 。数组变成 [1,4,0,<em><strong>2</strong></em>,<em><strong>0</strong></em>,0] 。\n- i = 4: nums[4] 和 nums[5] 相等，nums[4] 的值变成原来的 2 倍，nums[5] 的值变成 0 。数组变成 [1,4,0,2,<em><strong>0</strong></em>,<em><strong>0</strong></em>] 。\n执行完所有操作后，将 0 全部移动到数组末尾，得到结果数组 [1,4,2,0,0,0] 。\n</pre>\n\n<p><strong>示例 2：</strong></p>\n\n<pre>\n<strong>输入：</strong>nums = [0,1]\n<strong>输出：</strong>[1,0]\n<strong>解释：</strong>无法执行任何操作，只需要将 0 移动到末尾。\n</pre>\n\n<p>&nbsp;</p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li><code>2 &lt;= nums.length &lt;= 2000</code></li>\n\t<li><code>0 &lt;= nums[i] &lt;= 1000</code></li>\n</ul>\n",
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