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leetcode-problemset/算法题/3sum-closest.html
2022-03-27 18:35:17 +08:00

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<p>Given an integer array <code>nums</code> of length <code>n</code> and an integer <code>target</code>, find three integers in <code>nums</code> such that the sum is closest to <code>target</code>.</p>
<p>Return <em>the sum of the three integers</em>.</p>
<p>You may assume that each input would have exactly one solution.</p>
<p>&nbsp;</p>
<p><strong>Example 1:</strong></p>
<pre>
<strong>Input:</strong> nums = [-1,2,1,-4], target = 1
<strong>Output:</strong> 2
<strong>Explanation:</strong> The sum that is closest to the target is 2. (-1 + 2 + 1 = 2).
</pre>
<p><strong>Example 2:</strong></p>
<pre>
<strong>Input:</strong> nums = [0,0,0], target = 1
<strong>Output:</strong> 0
</pre>
<p>&nbsp;</p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>3 &lt;= nums.length &lt;= 1000</code></li>
<li><code>-1000 &lt;= nums[i] &lt;= 1000</code></li>
<li><code>-10<sup>4</sup> &lt;= target &lt;= 10<sup>4</sup></code></li>
</ul>