class Solution {
public:
int lengthOfLastWord(string s) {
int len = s.size();
int cout = 0;
for (int i=len-1; i>=0; i--) {
if(cout>0&&s[i]==' ') break;
if (s[i]==' ') {
continue;
}else{
cout++;
}
}
return cout;
}
};
