mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
synced 2025-01-11 19:18:14 +08:00
31 lines
1.4 KiB
HTML
31 lines
1.4 KiB
HTML
|
<p>给你一个大小为 <code>m x n</code> 的网格和一个球。球的起始坐标为 <code>[startRow, startColumn]</code> 。你可以将球移到在四个方向上相邻的单元格内（可以穿过网格边界到达网格之外）。你 <strong>最多</strong> 可以移动 <code>maxMove</code> 次球。</p>
|
|||
|
|
|
|||
|
|
<p>给你五个整数 <code>m</code>、<code>n</code>、<code>maxMove</code>、<code>startRow</code> 以及 <code>startColumn</code> ，找出并返回可以将球移出边界的路径数量。因为答案可能非常大，返回对 <code>10<sup>9</sup> + 7</code> <strong>取余</strong> 后的结果。</p>
|
|||
|
|
|
|||
|
|
<p> </p>
|
|||
|
|
|
|||
|
|
<p><strong>示例 1：</strong></p>
|
|||
|
|
<img alt="" src="https://assets.leetcode.com/uploads/2021/04/28/out_of_boundary_paths_1.png" style="width: 500px; height: 296px;" />
|
|||
|
|
<pre>
|
|||
|
|
<strong>输入：</strong>m = 2, n = 2, maxMove = 2, startRow = 0, startColumn = 0
|
|||
|
|
<strong>输出：</strong>6
|
|||
|
|
</pre>
|
|||
|
|
|
|||
|
|
<p><strong>示例 2：</strong></p>
|
|||
|
|
<img alt="" src="https://assets.leetcode.com/uploads/2021/04/28/out_of_boundary_paths_2.png" style="width: 500px; height: 293px;" />
|
|||
|
|
<pre>
|
|||
|
|
<strong>输入：</strong>m = 1, n = 3, maxMove = 3, startRow = 0, startColumn = 1
|
|||
|
|
<strong>输出：</strong>12
|
|||
|
|
</pre>
|
|||
|
|
|
|||
|
|
<p> </p>
|
|||
|
|
|
|||
|
|
<p><strong>提示：</strong></p>
|
|||
|
|
|
|||
|
|
<ul>
|
|||
|
|
<li><code>1 <= m, n <= 50</code></li>
|
|||
|
|
<li><code>0 <= maxMove <= 50</code></li>
|
|||
|
|
<li><code>0 <= startRow < m</code></li>
|
|||
|
|
<li><code>0 <= startColumn < n</code></li>
|
|||
|
|
</ul>
|