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[1/2] 520. Detect Capital
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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 1:
Input: word = "USA" Output: true
Example 2:
Input: word = "FlaG" Output: false
Constraints:
1 <= word.length <= 100wordconsists of lowercase and uppercase English letters.
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class Solution:
def detectCapitalUse(self, word: str) -> bool:
return len(word) == 1 or word[1:].islower() or word.isupper()
