mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
synced 2025-01-11 02:58:13 +08:00
27 lines
819 B
HTML
27 lines
819 B
HTML
<p>A positive integer is <em>magical</em> if it is divisible by either <code>a</code> or <code>b</code>.</p>
|
|
|
|
<p>Given the three integers <code>n</code>, <code>a</code>, and <code>b</code>, return the <code>n<sup>th</sup></code> magical number. Since the answer may be very large, <strong>return it modulo </strong><code>10<sup>9</sup> + 7</code>.</p>
|
|
|
|
<p> </p>
|
|
<p><strong class="example">Example 1:</strong></p>
|
|
|
|
<pre>
|
|
<strong>Input:</strong> n = 1, a = 2, b = 3
|
|
<strong>Output:</strong> 2
|
|
</pre>
|
|
|
|
<p><strong class="example">Example 2:</strong></p>
|
|
|
|
<pre>
|
|
<strong>Input:</strong> n = 4, a = 2, b = 3
|
|
<strong>Output:</strong> 6
|
|
</pre>
|
|
|
|
<p> </p>
|
|
<p><strong>Constraints:</strong></p>
|
|
|
|
<ul>
|
|
<li><code>1 <= n <= 10<sup>9</sup></code></li>
|
|
<li><code>2 <= a, b <= 4 * 10<sup>4</sup></code></li>
|
|
</ul>
|