#include <iostream> #include <sstream> #include <map> #include <string> using namespace std; int main(){ string s; while(std::getline(cin,s)){ map<int,string,std::greater<int>> res; // 放入流当中 istringstream iss{s}; string str; int index = 0; while(iss>>str){ res.insert({index++,str}); } for(auto &ele: res){ cout<<ele.second<<" "; } cout<<endl; } }