mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
synced 2025-01-10 18:48:13 +08:00
53 lines
2.2 KiB
HTML
53 lines
2.2 KiB
HTML
<p>You are given an <code>m x n</code> integer matrix <code>mat</code> and an integer <code>target</code>.</p>
|
|
|
|
<p>Choose one integer from <strong>each row</strong> in the matrix such that the <strong>absolute difference</strong> between <code>target</code> and the <strong>sum</strong> of the chosen elements is <strong>minimized</strong>.</p>
|
|
|
|
<p>Return <em>the <strong>minimum absolute difference</strong></em>.</p>
|
|
|
|
<p>The <strong>absolute difference</strong> between two numbers <code>a</code> and <code>b</code> is the absolute value of <code>a - b</code>.</p>
|
|
|
|
<p> </p>
|
|
<p><strong class="example">Example 1:</strong></p>
|
|
<img alt="" src="https://assets.leetcode.com/uploads/2021/08/03/matrix1.png" style="width: 181px; height: 181px;" />
|
|
<pre>
|
|
<strong>Input:</strong> mat = [[1,2,3],[4,5,6],[7,8,9]], target = 13
|
|
<strong>Output:</strong> 0
|
|
<strong>Explanation:</strong> One possible choice is to:
|
|
- Choose 1 from the first row.
|
|
- Choose 5 from the second row.
|
|
- Choose 7 from the third row.
|
|
The sum of the chosen elements is 13, which equals the target, so the absolute difference is 0.
|
|
</pre>
|
|
|
|
<p><strong class="example">Example 2:</strong></p>
|
|
<img alt="" src="https://assets.leetcode.com/uploads/2021/08/03/matrix1-1.png" style="width: 61px; height: 181px;" />
|
|
<pre>
|
|
<strong>Input:</strong> mat = [[1],[2],[3]], target = 100
|
|
<strong>Output:</strong> 94
|
|
<strong>Explanation:</strong> The best possible choice is to:
|
|
- Choose 1 from the first row.
|
|
- Choose 2 from the second row.
|
|
- Choose 3 from the third row.
|
|
The sum of the chosen elements is 6, and the absolute difference is 94.
|
|
</pre>
|
|
|
|
<p><strong class="example">Example 3:</strong></p>
|
|
<img alt="" src="https://assets.leetcode.com/uploads/2021/08/03/matrix1-3.png" style="width: 301px; height: 61px;" />
|
|
<pre>
|
|
<strong>Input:</strong> mat = [[1,2,9,8,7]], target = 6
|
|
<strong>Output:</strong> 1
|
|
<strong>Explanation:</strong> The best choice is to choose 7 from the first row.
|
|
The absolute difference is 1.
|
|
</pre>
|
|
|
|
<p> </p>
|
|
<p><strong>Constraints:</strong></p>
|
|
|
|
<ul>
|
|
<li><code>m == mat.length</code></li>
|
|
<li><code>n == mat[i].length</code></li>
|
|
<li><code>1 <= m, n <= 70</code></li>
|
|
<li><code>1 <= mat[i][j] <= 70</code></li>
|
|
<li><code>1 <= target <= 800</code></li>
|
|
</ul>
|