public static void PartOne()
{
string input = InputHelper.GetInputFromFile("22");
string[] lines = input.Split(Environment.NewLine);
StackShuffler stack = new StackShuffler();
stack.Start(10007);
foreach (string line in lines)
{
if (line.StartsWith("deal with increment "))
{
stack.DealWithIncrement(int.Parse(line.Split(' ')[3]));
}
if (line.StartsWith("cut "))
{
stack.CutNCards(int.Parse(line.Split(' ')[1]));
}
if (line == "deal into new stack")
{
stack.DealIntoNewStack();
}
}
Console.WriteLine("Position of card 2019 : " + stack.GetStack().IndexOf(2019));
}
public void Start_Should_Setup_Stack_Of_Given_Size_In_Order()
{
StackShuffler shufflerTested = new StackShuffler();
shufflerTested.Start(10);
var stack = shufflerTested.GetStack();
stack.Count.Should().Be(10);
stack.Should().ContainInOrder(Enumerable.Range(0, 10));
}
public void Deal_Into_New_Stack_Should_Reverse_The_Stack()
{
StackShuffler shufflerTested = new StackShuffler();
shufflerTested.Start(10);
shufflerTested.DealIntoNewStack();
var stack = shufflerTested.GetStack();
stack.Count.Should().Be(10);
stack.Should().ContainInOrder(Enumerable.Range(0, 10).Reverse());
}
public void DealWithIncrement_Should_Distibute_Cards_Every_N_Steps()
{
StackShuffler shufflerTested = new StackShuffler();
shufflerTested.Start(10);
shufflerTested.DealWithIncrement(9);
var stack = shufflerTested.GetStack();
stack.Count.Should().Be(10);
stack.Should().ContainInOrder(new List <int> {
0, 9, 8, 7, 6, 5, 4, 3, 2, 1
});
}
public void CutNCards_Negative_Should_Put_Size_Minus_N_Cards_At_The_End()
{
StackShuffler shufflerTested = new StackShuffler();
shufflerTested.Start(10);
shufflerTested.CutNCards(-4);
var stack = shufflerTested.GetStack();
stack.Count.Should().Be(10);
stack.Should().ContainInOrder(new List <int> {
6, 7, 8, 9, 0, 1, 2, 3, 4, 5
});
}
public void CutNCards_Should_Put_N_Cards_At_The_End()
{
StackShuffler shufflerTested = new StackShuffler();
shufflerTested.Start(10);
shufflerTested.CutNCards(3);
var stack = shufflerTested.GetStack();
stack.Count.Should().Be(10);
stack.Should().ContainInOrder(new List <int> {
3, 4, 5, 6, 7, 8, 9, 0, 1, 2
});
}
public void Chaining_Calls_Should_Yield_Correct_Result()
{
StackShuffler shufflerTested = new StackShuffler();
shufflerTested.Start(10);
shufflerTested.DealIntoNewStack();
shufflerTested.CutNCards(-2);
shufflerTested.DealWithIncrement(7);
shufflerTested.CutNCards(8);
shufflerTested.CutNCards(-4);
shufflerTested.DealWithIncrement(7);
shufflerTested.CutNCards(3);
shufflerTested.DealWithIncrement(9);
shufflerTested.DealWithIncrement(3);
shufflerTested.CutNCards(-1);
var stack = shufflerTested.GetStack();
stack.Count.Should().Be(10);
stack.Should().ContainInOrder(new List <int> {
9, 2, 5, 8, 1, 4, 7, 0, 3, 6
});
}
