LeetCode 58. Length of Last Word

描述

解决

class Solution {
public:
int lengthOfLastWord(string s) {
int pos = s.size() - 1;
int cnt = 0;
while (pos >= 0 && s[pos] == ' ')
--pos;
while (pos >= 0 && s[pos] != ' '){
++cnt;
--pos;
}
return cnt;
}
};