leetcode-problemset/leetcode-cn/originData/maximum-good-subarray-sum.json

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        "question": {
            "questionId": "3265",
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            "categoryTitle": "Algorithms",
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            "title": "Maximum Good Subarray Sum",
            "titleSlug": "maximum-good-subarray-sum",
            "content": "<p>You are given an array <code>nums</code> of length <code>n</code> and a <strong>positive</strong> integer <code>k</code>.</p>\n\n<p>A <span data-keyword=\"subarray-nonempty\">subarray</span> of <code>nums</code> is called <strong>good</strong> if the <strong>absolute difference</strong> between its first and last element is <strong>exactly</strong> <code>k</code>, in other words, the subarray <code>nums[i..j]</code> is good if <code>|nums[i] - nums[j]| == k</code>.</p>\n\n<p>Return <em>the <strong>maximum</strong> sum of a <strong>good</strong> subarray of </em><code>nums</code>. <em>If there are no good subarrays</em><em>, return </em><code>0</code>.</p>\n\n<p>&nbsp;</p>\n<p><strong class=\"example\">Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> nums = [1,2,3,4,5,6], k = 1\n<strong>Output:</strong> 11\n<strong>Explanation:</strong> The absolute difference between the first and last element<!-- notionvc: 2a6d66c9-0149-4294-b267-8be9fe252de9 --> must be 1 for a good subarray. All the good subarrays are: [1,2], [2,3], [3,4], [4,5], and [5,6]. The maximum subarray sum is 11 for the subarray [5,6].\n</pre>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> nums = [-1,3,2,4,5], k = 3\n<strong>Output:</strong> 11\n<strong>Explanation:</strong> The absolute difference between the first and last element<!-- notionvc: 2a6d66c9-0149-4294-b267-8be9fe252de9 --> must be 3 for a good subarray. All the good subarrays are: [-1,3,2], and [2,4,5]. The maximum subarray sum is 11 for the subarray [2,4,5].\n</pre>\n\n<p><strong class=\"example\">Example 3:</strong></p>\n\n<pre>\n<strong>Input:</strong> nums = [-1,-2,-3,-4], k = 2\n<strong>Output:</strong> -6\n<strong>Explanation:</strong> The absolute difference between the first and last element<!-- notionvc: 2a6d66c9-0149-4294-b267-8be9fe252de9 --> must be 2 for a good subarray. All the good subarrays are: [-1,-2,-3], and [-2,-3,-4]. The maximum subarray sum is -6 for the subarray [-1,-2,-3].\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;= 10<sup>5</sup></code></li>\n\t<li><code>-10<sup>9</sup> &lt;= nums[i] &lt;= 10<sup>9</sup></code></li>\n\t<li><code>1 &lt;= k &lt;= 10<sup>9</sup></code></li>\n</ul>\n",
            "translatedTitle": "最大好子数组和",
            "translatedContent": "<p>给你一个长度为 <code>n</code>&nbsp;的数组&nbsp;<code>nums</code>&nbsp;和一个 <strong>正</strong>&nbsp;整数&nbsp;<code>k</code>&nbsp;。</p>\n\n<p>如果&nbsp;<code>nums</code>&nbsp;的一个子数组中，第一个元素和最后一个元素 <strong>差的绝对值恰好</strong>&nbsp;为&nbsp;<code>k</code>&nbsp;，我们称这个子数组为&nbsp;<strong>好</strong>&nbsp;的。换句话说，如果子数组&nbsp;<code>nums[i..j]</code>&nbsp;满足&nbsp;<code>|nums[i] - nums[j]| == k</code>&nbsp;，那么它是一个好子数组。</p>\n\n<p>请你返回&nbsp;<code>nums</code>&nbsp;中&nbsp;<strong>好</strong>&nbsp;子数组的&nbsp;<strong>最大</strong>&nbsp;和，如果没有好子数组，返回<em>&nbsp;</em><code>0</code>&nbsp;。</p>\n\n<p>&nbsp;</p>\n\n<p><strong class=\"example\">示例 1：</strong></p>\n\n<pre>\n<b>输入：</b>nums = [1,2,3,4,5,6], k = 1\n<b>输出：</b>11\n<b>解释：</b>好子数组中第一个元素和最后一个元素的差的绝对值必须为 1 。好子数组有 [1,2] ，[2,3] ，[3,4] ，[4,5] 和 [5,6] 。最大子数组和为 11 ，对应的子数组为 [5,6] 。\n</pre>\n\n<p><strong class=\"example\">示例 2：</strong></p>\n\n<pre>\n<b>输入：</b>nums = [-1,3,2,4,5], k = 3\n<b>输出：</b>11\n<b>解释：</b>好子数组中第一个元素和最后一个元素的差的绝对值必须为 3 。好子数组有 [-1,3,2] 和 [2,4,5] 。最大子数组和为 11 ，对应的子数组为 [2,4,5] 。\n</pre>\n\n<p><strong class=\"example\">示例 3：</strong></p>\n\n<pre>\n<b>输入：</b>nums = [-1,-2,-3,-4], k = 2\n<b>输出：</b>-6\n<b>解释：</b>好子数组中第一个元素和最后一个元素的差的绝对值必须为 2 。好子数组有 [-1,-2,-3] 和 [-2,-3,-4] 。最大子数组和为 -6 ，对应的子数组为 [-1,-2,-3] 。\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;= 10<sup>5</sup></code></li>\n\t<li><code>-10<sup>9</sup> &lt;= nums[i] &lt;= 10<sup>9</sup></code></li>\n\t<li><code>1 &lt;= k &lt;= 10<sup>9</sup></code></li>\n</ul>\n",
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