public static void PartTwo()
{
string input = InputHelper.GetInputFromFile("14");
string[] lines = input.Split(Environment.NewLine);
List <Recipe> recipes = lines.Select(l => new Recipe(l)).ToList();
Console.WriteLine("Recipes stored.");
Console.WriteLine("Recipe for FUEL is : " + recipes.First(r => r.Product.Id == "FUEL"));
long increment = 1000000;
long total = increment;
long previousUsed = 0;
long used = 0;
while (increment > 0)
{
RecipeRobot bot = new RecipeRobot(recipes);
bot.Make(total, "FUEL");
used = bot.GetUsed("ORE");
if (used > 1000000000000)
{
total -= increment;
increment /= 10;
used = previousUsed;
}
else
{
total += increment;
}
previousUsed = used;
}
Console.WriteLine("Produced " + total + " FUEL using " + used + " ORE");
}
public void Make_Should_Track_How_Many_Of_Given_Element_Is_Required_To_Make_Given_Product_Based_On_Recipes()
{
List <Recipe> recipes = new List <Recipe>
{
new Recipe("1 ORE => 1 FUEL")
};
RecipeRobot botTested = new RecipeRobot(recipes);
botTested.Make(1, "FUEL");
botTested.GetUsed("ORE").Should().Be(1);
}
public void Make_Should_Cascade_Recipes_Down_To_Bottom()
{
List <Recipe> recipes = new List <Recipe>
{
new Recipe("1 ORE => 1 KEBAB"),
new Recipe("1 KEBAB => 1 FUEL"),
};
RecipeRobot botTested = new RecipeRobot(recipes);
botTested.Make(1, "FUEL");
botTested.GetUsed("ORE").Should().Be(1);
}
public void Make_Should_Handle_Leftovers()
{
List <Recipe> recipes = new List <Recipe>
{
new Recipe("1 ORE => 2 KEBAB"),
new Recipe("1 ORE, 1 KEBAB => 1 SHISH"),
new Recipe("1 KEBAB, 1 SHISH => 1 FUEL"),
};
RecipeRobot botTested = new RecipeRobot(recipes);
botTested.Make(1, "FUEL");
botTested.GetUsed("ORE").Should().Be(2);
}
public void Make_Should_Handle_Reagent_Quantities()
{
List <Recipe> recipes = new List <Recipe>
{
new Recipe("1 ORE => 1 KEBAB"),
new Recipe("1 ORE => 1 SHISH"),
new Recipe("2 KEBAB, 1 SHISH => 1 FUEL"),
};
RecipeRobot botTested = new RecipeRobot(recipes);
botTested.Make(1, "FUEL");
botTested.GetUsed("ORE").Should().Be(3);
}
public void Make_Should_Handle_Complex_Recipes()
{
List <Recipe> recipes = new List <Recipe>
{
new Recipe("9 ORE => 2 A"),
new Recipe("8 ORE => 3 B"),
new Recipe("7 ORE => 5 C"),
new Recipe("3 A, 4 B => 1 AB"),
new Recipe("5 B, 7 C => 1 BC"),
new Recipe("4 C, 1 A => 1 CA"),
new Recipe("2 AB, 3 BC, 4 CA => 1 FUEL")
};
RecipeRobot botTested = new RecipeRobot(recipes);
botTested.Make(1, "FUEL");
botTested.GetUsed("ORE").Should().Be(165);
}