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算法题（国外版）/detect-capital.html Normal file
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<p>We define the usage of capitals in a word to be right when one of the following cases holds:</p>
<ul>
<li>All letters in this word are capitals, like <code>&quot;USA&quot;</code>.</li>
<li>All letters in this word are not capitals, like <code>&quot;leetcode&quot;</code>.</li>
<li>Only the first letter in this word is capital, like <code>&quot;Google&quot;</code>.</li>
</ul>
<p>Given a string <code>word</code>, return <code>true</code> if the usage of capitals in it is right.</p>
<p>&nbsp;</p>
<p><strong>Example 1:</strong></p>
<pre><strong>Input:</strong> word = "USA"
<strong>Output:</strong> true
</pre><p><strong>Example 2:</strong></p>
<pre><strong>Input:</strong> word = "FlaG"
<strong>Output:</strong> false
</pre>
<p>&nbsp;</p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 &lt;= word.length &lt;= 100</code></li>
<li><code>word</code> consists of lowercase and uppercase English letters.</li>
</ul>