mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
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180 lines
16 KiB
JSON
180 lines
16 KiB
JSON
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"title": "Largest Element in an Array after Merge Operations",
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"content": "<p>You are given a <strong>0-indexed</strong> array <code>nums</code> consisting of positive integers.</p>\n\n<p>You can do the following operation on the array <strong>any</strong> number of times:</p>\n\n<ul>\n\t<li>Choose an integer <code>i</code> such that <code>0 <= i < nums.length - 1</code> and <code>nums[i] <= nums[i + 1]</code>. Replace the element <code>nums[i + 1]</code> with <code>nums[i] + nums[i + 1]</code> and delete the element <code>nums[i]</code> from the array.</li>\n</ul>\n\n<p>Return <em>the value of the <b>largest</b> element that you can possibly obtain in the final array.</em></p>\n\n<p> </p>\n<p><strong class=\"example\">Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> nums = [2,3,7,9,3]\n<strong>Output:</strong> 21\n<strong>Explanation:</strong> We can apply the following operations on the array:\n- Choose i = 0. The resulting array will be nums = [<u>5</u>,7,9,3].\n- Choose i = 1. The resulting array will be nums = [5,<u>16</u>,3].\n- Choose i = 0. The resulting array will be nums = [<u>21</u>,3].\nThe largest element in the final array is 21. It can be shown that we cannot obtain a larger element.\n</pre>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> nums = [5,3,3]\n<strong>Output:</strong> 11\n<strong>Explanation:</strong> We can do the following operations on the array:\n- Choose i = 1. The resulting array will be nums = [5,<u>6</u>].\n- Choose i = 0. The resulting array will be nums = [<u>11</u>].\nThere is only one element in the final array, which is 11.\n</pre>\n\n<p> </p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 <= nums.length <= 10<sup>5</sup></code></li>\n\t<li><code>1 <= nums[i] <= 10<sup>6</sup></code></li>\n</ul>\n",
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"exampleTestcases": "[2,3,7,9,3]\n[5,3,3]",
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"categoryTitle": "Algorithms",
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"Start from the end of the array and keep merging elements together until it is no longer possible.",
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"The answer will be the resulting element from the last merge operation."
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