题解 | 句子逆序

#include <iostream>
#include <sstream>
#include <stack>
#include <algorithm>
using namespace std;

int main() {
    string a;
    getline(cin,a);
    stack<string> wordstack;
    stringstream ss(a);
    string word;
    while(ss >> word)
    {
        wordstack.push(word);
    }

    string result;
    while(!wordstack.empty())
    {
        result +=wordstack.top();
        wordstack.pop();
        if(!wordstack.empty())
        {
            result +=' ';
        }
    }
    cout << result;
}
// 64 位输出请用 printf("%lld")