VecHotel, C++ (gcc)

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//g++  7.4.0

/////////////////////////////////////////////////////////////////////////////
//VecHotel
//this code is created by Rezaul Hoque on August 15,2022; 
//contact:jewelmrh@yahoo.com;Dhaka,Bangladesh;https://rezaulhoque.wordpress.com,https://hoquestake.blogspot.com
//note: codes shared by Rezaul Hoque on rextester are not for sale; they are created and shared to facilitate the algorithm learning process; many like Hoque use this platform to practice programming ;Rezaul hopes his contribution helps others to fine tune their learning;
//////////////////////////////////////////////////////////////////////////////

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

class Hotel{
std::vector<std::string> star;
int rent;

public:
Hotel(std::vector<std::string> s,int r);
std::vector<std::string> getS();
int getR() ;
};

Hotel::Hotel(std::vector<std::string> s,int r)
{
this->star=s;
this->rent=r;

}
 std::vector<std::string> Hotel::getS()  {
return this->star;
}
int Hotel:: getR()  {
return this->rent;
}
int main()
{
std::vector<std::string>s1,s2,s3,s4;
s1.push_back("***");
s2.push_back("****");
s3.push_back("**");
s4.push_back("***");
Hotel a(s1,900);
Hotel b(s2,3000);
Hotel c(s3,2500);
Hotel d(s4,1000);
    priority_queue<std::vector<std::string>,vector<std::vector<std::string>>,greater<std::vector<std::string>>> QS;
QS.push(a.getS());
QS.push(b.getS());
QS.push(c.getS());
QS.push(d.getS());
std::cout<<"Hotels listed on stars:\nStars\n";
while (!QS.empty()){
std::vector<std::string> h=QS.top();
QS.pop();
for(auto p:h){
std::cout<<p<<" "<<" \n";}
}

return 0;
}

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Compilation time: 0.61 sec, absolute running time: 0.14 sec, cpu time: 0.01 sec, memory peak: 5 Mb, absolute service time: 0,84 sec