题解 | 句子逆序

#include <bits/stdc++.h>
using namespace std;
int main() {
    string a;        
    getline(cin, a); 
    vector<string> b; 
    istringstream c(a);
    string d;       
    while (getline(c, d, ' ')) {
        b.push_back(d); 
    }
	reverse(b.begin(), b.end());//反转单词顺序
    for (size_t i = 0; i < b.size(); ++i) {
        if (i != 0) cout << " ";
        cout << b[i];
    }
    return 0;
}