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2023-12-09 18:42:21 +08:00
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leetcode/problem/number-of-sets-of-k-non-overlapping-line-segments.html
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@@ -3,7 +3,7 @@
<p>Return <em>the number of ways we can draw </em><code>k</code><em> non-overlapping line segments</em><em>.</em> Since this number can be huge, return it <strong>modulo</strong> <code>10<sup>9</sup> + 7</code>.</p>
<p>&nbsp;</p>
<p><strong>Example 1:</strong></p>
<p><strong class="example">Example 1:</strong></p>
<img alt="" src="https://assets.leetcode.com/uploads/2020/09/07/ex1.png" style="width: 179px; height: 222px;" />
<pre>
<strong>Input:</strong> n = 4, k = 2
@@ -12,7 +12,7 @@
The image above shows the 5 different ways {(0,2),(2,3)}, {(0,1),(1,3)}, {(0,1),(2,3)}, {(1,2),(2,3)}, {(0,1),(1,2)}.
</pre>
<p><strong>Example 2:</strong></p>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> n = 3, k = 1
@@ -20,7 +20,7 @@ The image above shows the 5 different ways {(0,2),(2,3)}, {(0,1),(1,3)}, {(0,1),
<strong>Explanation:</strong> The 3 ways are {(0,1)}, {(0,2)}, {(1,2)}.
</pre>
<p><strong>Example 3:</strong></p>
<p><strong class="example">Example 3:</strong></p>
<pre>
<strong>Input:</strong> n = 30, k = 7