#include <cstdio>
#include <vector>
class Person{
public:
int age;
int weight;
Person(int age, int weight):age(age), weight(weight){}
};
int main() {
std::vector<Person> ls;
Person p(33, 44);
ls.push_back(p);
ls.push_back(p);
ls.push_back(p);
for(auto i=ls.begin();i!=ls.end();++i){
printf("%X %X %d %d\n", i, &(*i), (*i).age, (*i).weight);
}
}
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