Detect Capital
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Given a word, you need to judge whether the usage of capitals in it is right or not.
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 if it has more than one letter, like “Google”.
Otherwise, we define that this word doesn’t use capitals in a right way.
Example 1:
Input: “USA”
Output: True
Example 2:
Input: “FlaG”
Output: False
方法:记录大写字母的个数并进行分析。
class Solution {public: bool detectCapitalUse(string word) { bool capital = false; if(word[0]>='A'&&word[0]<='Z') capital = true; int count_Capital = 0 ; for(int i = 0 ; i < word.size() ; ++i ){ if(word[i]>='A'&&word[i]<='Z') ++count_Capital; } if(capital&&count_Capital==1 || count_Capital== word.size() || count_Capital ==0) return true; else return false; }};
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