# 520-detect-capital


Try it on <a href='https://leetcode.com/problems/520-detect-capital'>leetcode</a>

## Description
<div class="description">
<div><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>"USA"</code>.</li>
	<li>All letters in this word are not capitals, like <code>"leetcode"</code>.</li>
	<li>Only the first letter in this word is capital, like <code>"Google"</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>
</div>
</div>

## Solution(Python)
```Python
class Solution:
    def detectCapitalUse(self, word: str) -> bool:
        return word.isupper() or word.islower() or word.istitle()

```