static void Main(String[] args)
{
var stackQueue = new QueueWithTwoStacks <int>();
int q = Convert.ToInt32(Console.ReadLine());
for (int i = 0; i < q; i++)
{
string[] a_temp = Console.ReadLine().Split(' ');
int type = Convert.ToInt32(a_temp[0]);
if (type == 1)
{
int x = Convert.ToInt32(a_temp[1]);
stackQueue.Enqueue(x);
}
else if (type == 2)
{
stackQueue.Dequeue();
}
else
{
Console.WriteLine(stackQueue.Peek());
}
}
Console.ReadKey();
}
static void Main(String[] args)
{
/* Enter your code here. Read input from STDIN. Print output to STDOUT. Your class should be named Solution */
var stackQueue = new QueueWithTwoStacks <int>();
int q = Convert.ToInt32(Console.ReadLine());
for (int i = 0; i < q; i++)
{
string[] a_temp = Console.ReadLine().Split(' ');
int type = Convert.ToInt32(a_temp[0]);
if (type == 1)
{
int x = Convert.ToInt32(a_temp[1]);
stackQueue.Enqueue(x);
}
else if (type == 2)
{
stackQueue.Dequeue();
}
else
{
Console.WriteLine(stackQueue.Peek());
}
}
Console.ReadKey();
}
public void QueueWithTwoStacksTest()
{
var queue = new QueueWithTwoStacks();
queue.Enqueue(2);
queue.Enqueue(3);
queue.Enqueue(4);
queue.Enqueue(5);
Assert.Equal(4, queue.Count);
Assert.Equal(2, queue.Peek());
Assert.Equal(2, queue.Dequeue());
Assert.Equal(3, queue.Dequeue());
Assert.Equal(4, queue.Peek());
Assert.Equal(2, queue.Count);
queue.Enqueue(6);
Assert.Equal(3, queue.Count);
Assert.Equal(4, queue.Dequeue());
Assert.Equal(5, queue.Dequeue());
Assert.Equal(6, queue.Dequeue());
}