题解 | #句子逆序#

#include <bits/stdc++.h>
#include <iterator>
#include <sstream>
using namespace std;

int main() {
    string sentence;
    getline(cin,sentence);
    vector<string> words;
    vector<char> one_word;
    string word;
    istringstream iss(sentence);
    while(iss>>word)
        words.push_back(word);
    //sentence包含多个单词
    if(words.size()>1){
         reverse(words.begin(),words.end());
         for(auto &w : words)
            cout<<w<<" ";
    }
    //sentence只有一个单词
    else{
        for(auto &letter : words[0])
            one_word.push_back(letter);
        reverse(one_word.begin(),one_word.end());
        for(auto &l : one_word)
            cout<<l;
    }
    cout<<endl;
    return 0;
       
    
}
// 64 位输出请用 printf("%lld")