520. Detect Capital
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
Solution:
class Solution {
public:
bool detectCapitalUse(string word) {
int sam=0, cap=0;
int n = word.length();
for(int i=0; i<n; i++){
if(word[i]>= 'a' && word[i] <='z'){
sam++;
}
if(word[i]>='A'&& word[i]<='Z'){
cap++;
}
}
if(sam ==n|| cap==n) return true;
if(word[0]>='A' && word[0]<='Z' && sam == n-1) return true;
return false;
}
};