题解 | #字符串最后一个单词的长度#

//https://www.nowcoder.com/practice/8c949ea5f36f422594b306a2300315da?tpId=37&tqId=21224&rp=1&ru=/exam/oj/ta&qru=/exam/oj/ta&sourceUrl=%2Fexam%2Foj%2Fta%3Fpage%3D1%26pageSize%3D50%26search%3D%26tpId%3D37%26type%3D37&difficulty=undefined&judgeStatus=undefined&tags=&title=

#include <iostream>

using namespace std;

int main() {
    string s;
    while (getline(cin, s)) {
        int pos = -1;

        for(int i = 0;i<s.size();i++)
            if(s[i]==' ')   //string的元素为字符型
                pos = i;

        cout << s.size()-pos-1 << endl;

    }
}