mirror of
				https://gitee.com/coder-xiaomo/leetcode-problemset
				synced 2025-11-04 19:53:12 +08:00 
			
		
		
		
	
		
			
				
	
	
		
			42 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			HTML
		
	
	
	
	
	
			
		
		
	
	
			42 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			HTML
		
	
	
	
	
	
<p>You are given a <strong>0-indexed</strong> array <code>nums</code> consisting of positive integers.</p>
 | 
						|
 | 
						|
<p>You can do the following operation on the array <strong>any</strong> number of times:</p>
 | 
						|
 | 
						|
<ul>
 | 
						|
	<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>
 | 
						|
</ul>
 | 
						|
 | 
						|
<p>Return <em>the value of the <b>largest</b> element that you can possibly obtain in the final array.</em></p>
 | 
						|
 | 
						|
<p> </p>
 | 
						|
<p><strong class="example">Example 1:</strong></p>
 | 
						|
 | 
						|
<pre>
 | 
						|
<strong>Input:</strong> nums = [2,3,7,9,3]
 | 
						|
<strong>Output:</strong> 21
 | 
						|
<strong>Explanation:</strong> We can apply the following operations on the array:
 | 
						|
- Choose i = 0. The resulting array will be nums = [<u>5</u>,7,9,3].
 | 
						|
- Choose i = 1. The resulting array will be nums = [5,<u>16</u>,3].
 | 
						|
- Choose i = 0. The resulting array will be nums = [<u>21</u>,3].
 | 
						|
The largest element in the final array is 21. It can be shown that we cannot obtain a larger element.
 | 
						|
</pre>
 | 
						|
 | 
						|
<p><strong class="example">Example 2:</strong></p>
 | 
						|
 | 
						|
<pre>
 | 
						|
<strong>Input:</strong> nums = [5,3,3]
 | 
						|
<strong>Output:</strong> 11
 | 
						|
<strong>Explanation:</strong> We can do the following operations on the array:
 | 
						|
- Choose i = 1. The resulting array will be nums = [5,<u>6</u>].
 | 
						|
- Choose i = 0. The resulting array will be nums = [<u>11</u>].
 | 
						|
There is only one element in the final array, which is 11.
 | 
						|
</pre>
 | 
						|
 | 
						|
<p> </p>
 | 
						|
<p><strong>Constraints:</strong></p>
 | 
						|
 | 
						|
<ul>
 | 
						|
	<li><code>1 <= nums.length <= 10<sup>5</sup></code></li>
 | 
						|
	<li><code>1 <= nums[i] <= 10<sup>6</sup></code></li>
 | 
						|
</ul>
 |