# Leetcode 520 - Detect capital

Note:

• Simplify the logic
• Word[i] after index 2 must have the same case as word[1].
• The only exception is aBBB. We need to check if the first case is lower and the second is upper.

Question:

We define the usage of capitals in a word to be right when one of the following cases holds:

• All letters in this word are capitals, like “USA“.
• All letters in this word are not capitals, like “leetcode“.
• Only the first letter in this word is capital, like “Google“.

Given a string word, return true if the usage of capitals in it is right.

Example:

Code: