LeetCode 58. Length of Last Word

LeetCode 58. Length of Last Word

Solution1：我的答案
唯一的遗憾不是一遍过啊！哈哈哈~

class Solution {
public:
    int lengthOfLastWord(string s) {
        int length = 0;
        s.erase(0, s.find_first_not_of(" "));
        s.erase(s.find_last_not_of(" ") + 1);
        if (!s.size()) return length;
        return s.substr(s.find_last_of(" ") + 1).size();
    }
};