C++ Institute Exam CPP Topic 2 Question 59 Discussion

Which lines of the code below contain proper instantiation of queue objects?

#include

#include

#include

#include

#include

using namespace std;

int main()

{

deque mydeck;

list mylist;

vector myvector;

queue first; // line I

queue second(mydeck);// line II

queue third(second);// line III

queue fourth(mylist);// line IV

queue fifth(myvector);// line V

return 0;

}