题解 | #字符串最后一个单词的长度#

#include <iostream>
#include<string>
using namespace std;

int main() {
    string s;
    while (getline(cin, s)) {
        int begin = 0;
        for (int i = s.size() - 1; i >= 0; i--) {
            if (s[i] == ' '){
                begin = i;
                cout<<s.size() - begin - 1<<endl;
                return 0;
            }
        }
        cout<<s.size()<<endl;
        return 0;
        //cout << s.size() - begin<< endl;
    }
}
// 64 位输出请用 printf("%lld")