国外版

算法题（国外版）/number-of-segments-in-a-string.html

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+<p>Given a string <code>s</code>, return <em>the number of segments in the string</em>.</p>
+
+<p>A <strong>segment</strong> is defined to be a contiguous sequence of <strong>non-space characters</strong>.</p>
+
+<p>&nbsp;</p>
+<p><strong>Example 1:</strong></p>
+
+<pre>
+<strong>Input:</strong> s = &quot;Hello, my name is John&quot;
+<strong>Output:</strong> 5
+<strong>Explanation:</strong> The five segments are [&quot;Hello,&quot;, &quot;my&quot;, &quot;name&quot;, &quot;is&quot;, &quot;John&quot;]
+</pre>
+
+<p><strong>Example 2:</strong></p>
+
+<pre>
+<strong>Input:</strong> s = &quot;Hello&quot;
+<strong>Output:</strong> 1
+</pre>
+
+<p>&nbsp;</p>
+<p><strong>Constraints:</strong></p>
+
+<ul>
+	<li><code>0 &lt;= s.length &lt;= 300</code></li>
+	<li><code>s</code> consists of lowercase and uppercase English letters, digits, or one of the following characters <code>&quot;!@#$%^&amp;*()_+-=&#39;,.:&quot;</code>.</li>
+	<li>The only space character in <code>s</code> is <code>&#39; &#39;</code>.</li>
+</ul>