题解 | 字符串最后一个单词的长度

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

int main() {
    string sentence;
    getline(cin, sentence);
    int end = sentence.length()-1;
    // cout<<end;
    if (end > 1000)
        return 0;
    for(int i = end;i>=0;i--)
    {
        if(i==0)
        {
            cout<<end-i+1<<endl;
        }
        if (sentence[i]== ' ')
        {
            cout<<end-i<<endl;
            break;
        }
    }
}