A function that displays elements of a vector

[skatingrocker17]

I need to write a function that takes in a vector of strings and a vector of integer indices and display just those elements in the vector of strings at the given indices.

For example, if the vector of integer indices contains 1 and 4 then the function will display the first and fourth element of the vector of strings.

This is what I have so far:

void displaySelected (vector<int> i;)
{
	cout << vector<string> (vector<int> i)
	
}

I know it's pretty far off. I understand the concept and can apply it to an array easily but I'm having trouble applying it to a vector.

Thanks

[Duthomhas]

Make sure you know the difference between the type of a thing and the thing itself.

    vector<string> -- a type of thing
    my_strings -- a thing

For example:

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

int main()
  {
  // I have a thing called 'my_strings'. Its type is a vector of strings.
  vector<string> my_strings;

  // Let's add some strings to my thing.
  my_strings.push_back( "Hello" );
  my_strings.push_back( "world!" );

  // Let's display the thing to the user.
  for (size_t n = 0; n < my_strings.size(); n++)
    cout << my_strings[ n ] << " ";
  cout << endl;

  return 0;
  }

Your function should take two arguments (two things): the first is a vector of strings and the second is a vector of integers:

    void displaySelected( vector<string>& my_strings, vector<int>& my_indices )

You will need a loop that goes through your list of indices. For each index, use it to lookup a string in your list of strings, and print that string.

This should be enough to help. Good luck!

[edit]Fixed a typo.

[skatingrocker17]

Thanks Duoas, I don't have to pass it by reference though right? Because I'm not changing any values.

This is what I managed to come up with, I'm a little confused on how to stop the loop at the end.

void displaySelected (vector<string>& my_strings, vector<int>& my_indices)
{
	for (my_indices = 0; my_indices < vector::size; my_indices++)
		cout << vector<string> my_strings(my_indices);
}

[Duthomhas]

You really should try to compile the stuff you have and the stuff people give you.
See line 16 of my code above to know when to stop.
Good luck!