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 <= 100
-
word
consists of lowercase and uppercase English letters.
SOLUTION:
class Solution:
def detectCapitalUse(self, word: str) -> bool:
n = len(word)
caps = 0
for i in range(n):
if word[i].isupper():
caps += 1
if caps == 0 or caps == n:
return True
if caps == 1 and word[0].isupper():
return True
return False
Top comments (0)