mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
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177 lines
21 KiB
JSON
177 lines
21 KiB
JSON
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"categoryTitle": "Algorithms",
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"boundTopicId": 447168,
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"title": "Mean of Array After Removing Some Elements",
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"content": "<p>Given an integer array <code>arr</code>, return <em>the mean of the remaining integers after removing the smallest <code>5%</code> and the largest <code>5%</code> of the elements.</em></p>\n\n<p>Answers within <code>10<sup>-5</sup></code> of the <strong>actual answer</strong> will be considered accepted.</p>\n\n<p> </p>\n<p><strong class=\"example\">Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> arr = [1,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,3]\n<strong>Output:</strong> 2.00000\n<strong>Explanation:</strong> After erasing the minimum and the maximum values of this array, all elements are equal to 2, so the mean is 2.\n</pre>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> arr = [6,2,7,5,1,2,0,3,10,2,5,0,5,5,0,8,7,6,8,0]\n<strong>Output:</strong> 4.00000\n</pre>\n\n<p><strong class=\"example\">Example 3:</strong></p>\n\n<pre>\n<strong>Input:</strong> arr = [6,0,7,0,7,5,7,8,3,4,0,7,8,1,6,8,1,1,2,4,8,1,9,5,4,3,8,5,10,8,6,6,1,0,6,10,8,2,3,4]\n<strong>Output:</strong> 4.77778\n</pre>\n\n<p> </p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>20 <= arr.length <= 1000</code></li>\n\t<li><code>arr.length</code><b> </b><strong>is a multiple</strong> of <code>20</code>.</li>\n\t<li><code><font face=\"monospace\">0 <= arr[i] <= 10<sup>5</sup></font></code></li>\n</ul>\n",
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"translatedTitle": "删除某些元素后的数组均值",
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"translatedContent": "<p>给你一个整数数组 <code>arr</code> ,请你删除最小 <code>5%</code> 的数字和最大 <code>5%</code> 的数字后,剩余数字的平均值。</p>\n\n<p>与 <strong>标准答案</strong> 误差在 <code>10<sup>-5</sup></code> 的结果都被视为正确结果。</p>\n\n<p> </p>\n\n<p><strong>示例 1:</strong></p>\n\n<pre>\n<b>输入:</b>arr = [1,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,3]\n<b>输出:</b>2.00000\n<b>解释:</b>删除数组中最大和最小的元素后,所有元素都等于 2,所以平均值为 2 。\n</pre>\n\n<p><strong>示例 2:</strong></p>\n\n<pre>\n<b>输入:</b>arr = [6,2,7,5,1,2,0,3,10,2,5,0,5,5,0,8,7,6,8,0]\n<b>输出:</b>4.00000\n</pre>\n\n<p><strong>示例 3:</strong></p>\n\n<pre>\n<b>输入:</b>arr = [6,0,7,0,7,5,7,8,3,4,0,7,8,1,6,8,1,1,2,4,8,1,9,5,4,3,8,5,10,8,6,6,1,0,6,10,8,2,3,4]\n<b>输出:</b>4.77778\n</pre>\n\n<p><strong>示例 4:</strong></p>\n\n<pre>\n<b>输入:</b>arr = [9,7,8,7,7,8,4,4,6,8,8,7,6,8,8,9,2,6,0,0,1,10,8,6,3,3,5,1,10,9,0,7,10,0,10,4,1,10,6,9,3,6,0,0,2,7,0,6,7,2,9,7,7,3,0,1,6,1,10,3]\n<b>输出:</b>5.27778\n</pre>\n\n<p><strong>示例 5:</strong></p>\n\n<pre>\n<b>输入:</b>arr = [4,8,4,10,0,7,1,3,7,8,8,3,4,1,6,2,1,1,8,0,9,8,0,3,9,10,3,10,1,10,7,3,2,1,4,9,10,7,6,4,0,8,5,1,2,1,6,2,5,0,7,10,9,10,3,7,10,5,8,5,7,6,7,6,10,9,5,10,5,5,7,2,10,7,7,8,2,0,1,1]\n<b>输出:</b>5.29167\n</pre>\n\n<p> </p>\n\n<p><strong>提示:</strong></p>\n\n<ul>\n\t<li><code>20 <= arr.length <= 1000</code></li>\n\t<li><code>arr.length</code><b> </b>是 <code>20</code> 的<strong> 倍数</strong> </li>\n\t<li><code>0 <= arr[i] <= 10<sup>5</sup></code></li>\n</ul>\n",
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