Passing a vector back to main

Question: How do I pass a vector of strings back to main?

The code below is wrong, but what should it be?

Code:

---

#include<iostream>
#include<vector>

void passback(???);

int main()
{
 
  void passback(array???);
 
  for(int i=0; i<array.size(); i++)
  {
      cout<<array[i];
    }

}

void passback(????)
{
    vector <string> array;
    array.push_back("blah");
    array.push_back("yada");
    array.push_back("blah");

}

---

main should pass a reference to the vector.

Code:

---

#include<iostream>
#include<vector>

void passback(std::vector<std::string>& s);

int main()
{
    std::vector <std::string> array;
 
    passback(array);
 
  for(int i=0; i<array.size(); i++)
  {
      cout<<array[i];
    }

}

void passback(std::vector<std::string>& array)
{
    array.push_back("blah");
    array.push_back("yada");
    array.push_back("blah");

}

---

You can also just return it like any other type, although passing by reference is usually better since it avoids copynig everything in the vector.

Thanks

Or you can use a pointer (although you don't need to, and so a reference would be better).