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https://gitee.com/coder-xiaomo/leetcode-problemset
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174 lines
18 KiB
JSON
174 lines
18 KiB
JSON
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"title": "Minimum Absolute Difference Queries",
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"content": "<p>The <strong>minimum absolute difference</strong> of an array <code>a</code> is defined as the <strong>minimum value</strong> of <code>|a[i] - a[j]|</code>, where <code>0 <= i < j < a.length</code> and <code>a[i] != a[j]</code>. If all elements of <code>a</code> are the <strong>same</strong>, the minimum absolute difference is <code>-1</code>.</p>\n\n<ul>\n\t<li>For example, the minimum absolute difference of the array <code>[5,<u>2</u>,<u>3</u>,7,2]</code> is <code>|2 - 3| = 1</code>. Note that it is not <code>0</code> because <code>a[i]</code> and <code>a[j]</code> must be different.</li>\n</ul>\n\n<p>You are given an integer array <code>nums</code> and the array <code>queries</code> where <code>queries[i] = [l<sub>i</sub>, r<sub>i</sub>]</code>. For each query <code>i</code>, compute the <strong>minimum absolute difference</strong> of the <strong>subarray</strong> <code>nums[l<sub>i</sub>...r<sub>i</sub>]</code> containing the elements of <code>nums</code> between the <strong>0-based</strong> indices <code>l<sub>i</sub></code> and <code>r<sub>i</sub></code> (<strong>inclusive</strong>).</p>\n\n<p>Return <em>an <strong>array</strong> </em><code>ans</code> <em>where</em> <code>ans[i]</code> <em>is the answer to the</em> <code>i<sup>th</sup></code> <em>query</em>.</p>\n\n<p>A <strong>subarray</strong> is a contiguous sequence of elements in an array.</p>\n\n<p>The value of <code>|x|</code> is defined as:</p>\n\n<ul>\n\t<li><code>x</code> if <code>x >= 0</code>.</li>\n\t<li><code>-x</code> if <code>x < 0</code>.</li>\n</ul>\n\n<p> </p>\n<p><strong class=\"example\">Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> nums = [1,3,4,8], queries = [[0,1],[1,2],[2,3],[0,3]]\n<strong>Output:</strong> [2,1,4,1]\n<strong>Explanation:</strong> The queries are processed as follows:\n- queries[0] = [0,1]: The subarray is [<u>1</u>,<u>3</u>] and the minimum absolute difference is |1-3| = 2.\n- queries[1] = [1,2]: The subarray is [<u>3</u>,<u>4</u>] and the minimum absolute difference is |3-4| = 1.\n- queries[2] = [2,3]: The subarray is [<u>4</u>,<u>8</u>] and the minimum absolute difference is |4-8| = 4.\n- queries[3] = [0,3]: The subarray is [1,<u>3</u>,<u>4</u>,8] and the minimum absolute difference is |3-4| = 1.\n</pre>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> nums = [4,5,2,2,7,10], queries = [[2,3],[0,2],[0,5],[3,5]]\n<strong>Output:</strong> [-1,1,1,3]\n<strong>Explanation: </strong>The queries are processed as follows:\n- queries[0] = [2,3]: The subarray is [2,2] and the minimum absolute difference is -1 because all the\n elements are the same.\n- queries[1] = [0,2]: The subarray is [<u>4</u>,<u>5</u>,2] and the minimum absolute difference is |4-5| = 1.\n- queries[2] = [0,5]: The subarray is [<u>4</u>,<u>5</u>,2,2,7,10] and the minimum absolute difference is |4-5| = 1.\n- queries[3] = [3,5]: The subarray is [2,<u>7</u>,<u>10</u>] and the minimum absolute difference is |7-10| = 3.\n</pre>\n\n<p> </p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>2 <= nums.length <= 10<sup>5</sup></code></li>\n\t<li><code>1 <= nums[i] <= 100</code></li>\n\t<li><code>1 <= queries.length <= 2 * 10<sup>4</sup></code></li>\n\t<li><code>0 <= l<sub>i</sub> < r<sub>i</sub> < nums.length</code></li>\n</ul>\n",
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"How does the maximum value being 100 help us?",
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