#include <iostream>
#include <queue>
using namespace std;
void printQueue(queue<int>& q) {
while (!q.empty()) {
cout << q.front() << " ";
q.pop();
}
}
int main()
{
queue<int> q;
q.push(1);
q.push(2);
q.push(3);
q.push(4);
q.push(5);
printQueue(q);
}
/*
run:
1 2 3 4 5
*/