<p>给你两个数&nbsp;<code>hour</code>&nbsp;和&nbsp;<code>minutes</code>&nbsp;。请你返回在时钟上，由给定时间的时针和分针组成的较小角的角度（60 单位制）。</p>

<p>&nbsp;</p>

<p><strong>示例 1：</strong></p>

<p><img alt="" src="https://assets.leetcode-cn.com/aliyun-lc-upload/uploads/2020/02/08/sample_1_1673.png" style="height: 225px; width: 230px;"></p>

<pre><strong>输入：</strong>hour = 12, minutes = 30
<strong>输出：</strong>165
</pre>

<p><strong>示例 2：</strong></p>

<p><img alt="" src="https://assets.leetcode-cn.com/aliyun-lc-upload/uploads/2020/02/08/sample_2_1673.png" style="height: 225px; width: 230px;"></p>

<pre><strong>输入：</strong>hour = 3, minutes = 30
<strong>输出；</strong>75
</pre>

<p><strong>示例 3：</strong></p>

<p><strong><img alt="" src="https://assets.leetcode-cn.com/aliyun-lc-upload/uploads/2020/02/08/sample_3_1673.png" style="height: 231px; width: 230px;"></strong></p>

<pre><strong>输入：</strong>hour = 3, minutes = 15
<strong>输出：</strong>7.5
</pre>

<p><strong>示例 4：</strong></p>

<pre><strong>输入：</strong>hour = 4, minutes = 50
<strong>输出：</strong>155
</pre>

<p><strong>示例 5：</strong></p>

<pre><strong>输入：</strong>hour = 12, minutes = 0
<strong>输出：</strong>0
</pre>

<p>&nbsp;</p>

<p><strong>提示：</strong></p>

<ul>
	<li><code>1 &lt;= hour &lt;= 12</code></li>
	<li><code>0 &lt;= minutes &lt;= 59</code></li>
	<li>与标准答案误差在&nbsp;<code>10^-5</code>&nbsp;以内的结果都被视为正确结果。</li>
</ul>