LeetCode 058 Length of Last Word

class Solution {
public:
int lengthOfLastWord(string s) {
if(s.size()==0)return 0;
int ans=0;
int get_ss=0;
for(int ii=0;ii<s.size();ii++){
if(s[ii]==' ')ans=0;
else {ans++;get_ss=ans;}
}
//if(ans)get_ss=ans;
return get_ss;
}
};