試験CPP トピック8 問題178 スレッド

Which lines of the code below contain proper instantiation of queue objects?
# include <iostream>
# include <deque>
# include <list>
# include <queue>
# include <vector>
using namespace std;
int main()
{
deque<int> mydeck;
list<int> mylist;
vector<int> myvector;
queue<int> first; // line I
queue<int> second(mydeck);// line II
queue<int> third(second);// line III
queue<int> fourth(mylist);// line IV
queue<int> fifth(myvector);// line V
return 0;
}