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leetcode-problemset/leetcode/problem/length-of-last-word.html
2022-03-29 12:55:24 +08:00

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<p>Given a string <code>s</code> consisting&nbsp;of some words separated by some number of spaces, return <em>the length of the <strong>last</strong> word in the string.</em></p>
<p>A <strong>word</strong> is a maximal substring consisting of non-space characters only.</p>
<p>&nbsp;</p>
<p><strong>Example 1:</strong></p>
<pre>
<strong>Input:</strong> s = &quot;Hello World&quot;
<strong>Output:</strong> 5
<strong>Explanation:</strong> The last word is &quot;World&quot; with length 5.
</pre>
<p><strong>Example 2:</strong></p>
<pre>
<strong>Input:</strong> s = &quot; fly me to the moon &quot;
<strong>Output:</strong> 4
<strong>Explanation:</strong> The last word is &quot;moon&quot; with length 4.
</pre>
<p><strong>Example 3:</strong></p>
<pre>
<strong>Input:</strong> s = &quot;luffy is still joyboy&quot;
<strong>Output:</strong> 6
<strong>Explanation:</strong> The last word is &quot;joyboy&quot; with length 6.
</pre>
<p>&nbsp;</p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 &lt;= s.length &lt;= 10<sup>4</sup></code></li>
<li><code>s</code> consists of only English letters and spaces <code>&#39; &#39;</code>.</li>
<li>There will be at least one word in <code>s</code>.</li>
</ul>