mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
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180 lines
18 KiB
JSON
180 lines
18 KiB
JSON
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"questionId": "2263",
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"questionFrontendId": "2141",
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"boundTopicId": null,
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"title": "Maximum Running Time of N Computers",
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"content": "<p>You have <code>n</code> computers. You are given the integer <code>n</code> and a <strong>0-indexed</strong> integer array <code>batteries</code> where the <code>i<sup>th</sup></code> battery can <strong>run</strong> a computer for <code>batteries[i]</code> minutes. You are interested in running <strong>all</strong> <code>n</code> computers <strong>simultaneously</strong> using the given batteries.</p>\n\n<p>Initially, you can insert <strong>at most one battery</strong> into each computer. After that and at any integer time moment, you can remove a battery from a computer and insert another battery <strong>any number of times</strong>. The inserted battery can be a totally new battery or a battery from another computer. You may assume that the removing and inserting processes take no time.</p>\n\n<p>Note that the batteries cannot be recharged.</p>\n\n<p>Return <em>the <strong>maximum</strong> number of minutes you can run all the </em><code>n</code><em> computers simultaneously.</em></p>\n\n<p> </p>\n<p><strong>Example 1:</strong></p>\n<img alt=\"\" src=\"https://assets.leetcode.com/uploads/2022/01/06/example1-fit.png\" style=\"width: 762px; height: 150px;\" />\n<pre>\n<strong>Input:</strong> n = 2, batteries = [3,3,3]\n<strong>Output:</strong> 4\n<strong>Explanation:</strong> \nInitially, insert battery 0 into the first computer and battery 1 into the second computer.\nAfter two minutes, remove battery 1 from the second computer and insert battery 2 instead. Note that battery 1 can still run for one minute.\nAt the end of the third minute, battery 0 is drained, and you need to remove it from the first computer and insert battery 1 instead.\nBy the end of the fourth minute, battery 1 is also drained, and the first computer is no longer running.\nWe can run the two computers simultaneously for at most 4 minutes, so we return 4.\n\n</pre>\n\n<p><strong>Example 2:</strong></p>\n<img alt=\"\" src=\"https://assets.leetcode.com/uploads/2022/01/06/example2.png\" style=\"width: 629px; height: 150px;\" />\n<pre>\n<strong>Input:</strong> n = 2, batteries = [1,1,1,1]\n<strong>Output:</strong> 2\n<strong>Explanation:</strong> \nInitially, insert battery 0 into the first computer and battery 2 into the second computer. \nAfter one minute, battery 0 and battery 2 are drained so you need to remove them and insert battery 1 into the first computer and battery 3 into the second computer. \nAfter another minute, battery 1 and battery 3 are also drained so the first and second computers are no longer running.\nWe can run the two computers simultaneously for at most 2 minutes, so we return 2.\n</pre>\n\n<p> </p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 <= n <= batteries.length <= 10<sup>5</sup></code></li>\n\t<li><code>1 <= batteries[i] <= 10<sup>9</sup></code></li>\n</ul>\n",
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"For a given running time, can you determine if it is possible to run all n computers simultaneously?",
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"Try to use Binary Search to find the maximal running time"
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