解题思路:从后往前判断
class Solution {
public:
int lengthOfLastWord(string s) {
int i = s.length()-1,count=0;
while(i>=0 && s[i]==' ') {
i--;
}
while(i>=0 && s[i]!=' ') {
count++;
i--;
}
return count;
}
};
解题思路:从后往前判断
class Solution {
public:
int lengthOfLastWord(string s) {
int i = s.length()-1,count=0;
while(i>=0 && s[i]==' ') {
i--;
}
while(i>=0 && s[i]!=' ') {
count++;
i--;
}
return count;
}
};