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

void func(std::vector<int> &b){
for (auto i : b)
std::cout<<i<<"\n";}

void func1(std::vector<int> *b){
for (auto i : *b)
std::cout<<i<<"\n";}

int main() {
std::vector<int> a;
a.push_back(1);
a.push_back(1);

func(a);
std::vector<int> *c=&a;
func1(c);
}