Shorting in one line using class members std and boost bind, C++ (gcc)

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//Sorting in one line using class members std and boost phoenix

#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <boost/phoenix/phoenix.hpp>
 
struct Parent{
    int getAge() const{
    return age;
}
    int getYear() const{
    return year;
}
int age;
int year;
std::string name;
};
 
int main()
{
    std::vector<Parent> aListParents;
 
    Parent aParent1;
    aParent1.age=1;
    aParent1.year=2;
    aParent1.name="parent1";
    
    Parent aParent2;
    aParent2.age=2;
    aParent2.year=1;
    aParent2.name="parent2";
 
    aListParents.push_back(aParent2);
    aListParents.push_back(aParent1);
    aListParents.push_back(aParent2);
    aListParents.push_back(aParent1);
    
    for_each(aListParents.begin(), aListParents.end(), std::cout << boost::phoenix::bind(&Parent::name, boost::phoenix::placeholders::arg1) << ' ');
    
    std::sort(aListParents.begin(), aListParents.end(),
        boost::phoenix::bind(&Parent::getAge, boost::phoenix::placeholders::arg1)  < 
              boost::phoenix::bind(&Parent::getAge, boost::phoenix::placeholders::arg2));
    
    std::cout << "\n After sorting age:" << std::endl;
    for_each(aListParents.begin(), aListParents.end(), std::cout << boost::phoenix::bind(&Parent::name, boost::phoenix::placeholders::arg1) << ' ');
    
    std::sort(aListParents.begin(), aListParents.end(),
        boost::phoenix::bind(&Parent::getYear, boost::phoenix::placeholders::arg1)  < 
              boost::phoenix::bind(&Parent::getYear, boost::phoenix::placeholders::arg2));
    
    std::cout << "\n After sorting by year:" << std::endl;
    for_each(aListParents.begin(), aListParents.end(), std::cout << boost::phoenix::bind(&Parent::name, boost::phoenix::placeholders::arg1) << ' ');   
}

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Compilation time: 1.73 sec, absolute running time: 0.04 sec, cpu time: 0 sec, memory peak: 3 Mb, absolute service time: 1.79 sec