Given a string s consists of upper/lower-case alphabets and empty space characters '
'
, return the length of last word in the string.
If the last word does not exist, return 0.
Note: A word is defined as a character sequence consists of non-space characters only.
For example,
Given s = "Hello World"
,
return 5
.
class Solution {
public:
int lengthOfLastWord(const char *s) {
int length = strlen(s);
int ii = length - 1;
while(ii >= 0) {
if(*(s + ii) == ' ')
ii --;
else
break;
}
int lastlength = 0;
while(ii >= 0) {
if(*(s + ii) != ' ') {
lastlength ++;
ii --;
}
else
break;
}
return lastlength;
}
};