private static long GetAnswer(Cup start)
{
var toReturn = string.Empty;
var current = start.Next;
while (current != start)
{
toReturn += current.Value.ToString();
current = current.Next;
}
return(long.Parse(toReturn));
}
private static void Print(this Dictionary <int, Cup> obj, Cup start)
{
var toPrint = string.Empty;
var current = start.Next;
do
{
toPrint += $"{current.Value} ";
current = current.Next;
} while (current != start);
System.Console.WriteLine(toPrint);
}
private static (Cup, Cup, Dictionary <int, Cup>) ParseInput(string[] lines, int extraNumbers = 0)
{
var dictMap = new Dictionary <int, Cup>();
var input = lines[0];
Cup firstCup = new Cup {
Value = int.Parse(input[0].ToString())
};
dictMap.Add(firstCup.Value, firstCup);
Cup currentCup = firstCup;
Cup oneCup = null;
if (firstCup.Value == 1)
{
oneCup = firstCup;
}
for (var i = 1; i < input.Length; i++)
{
var cup = new Cup {
Value = int.Parse(input[i].ToString())
};
if (cup.Value == 1)
{
oneCup = cup;
}
dictMap.Add(cup.Value, cup);
currentCup.Next = cup;
currentCup = cup;
}
var nextValue = 10;
for (var i = 0; i < extraNumbers; i++)
{
var cup = new Cup {
Value = nextValue
};
dictMap.Add(cup.Value, cup);
currentCup.Next = cup;
currentCup = cup;
nextValue++;
}
// close circle
currentCup.Next = firstCup;
currentCup = firstCup;
return(currentCup, oneCup, dictMap);
}
private static void Move(Cup currentCup, Dictionary <int, Cup> dictMap, int max, int moves)
{
int currentMove = 1;
while (currentMove <= moves)
{
// System.Console.WriteLine($"-- move {currentMove} --");
// System.Console.WriteLine($"Cups:");
// dictMap.Print(currentCup);
// Pickups
var pickupStart = currentCup.Next;
var pickupEnd = pickupStart.Next.Next;
// System.Console.WriteLine($"Pick up:");
var pickups = new List <int>()
{
pickupStart.Value,
pickupStart.Next.Value,
pickupStart.Next.Next.Value
};
// pickups.Print();
currentCup.Next = pickupEnd.Next;
// Destination cup
var cupNextValue = currentCup.Value;
do
{
cupNextValue--;
cupNextValue = cupNextValue == 0 ? max : cupNextValue;
}while (pickups.Contains(cupNextValue));
var destinationCup = dictMap[cupNextValue];
// System.Console.WriteLine($"destination: {destinationCup.Value}");
// Place cups
var tempNext = destinationCup.Next;
destinationCup.Next = pickupStart;
pickupEnd.Next = tempNext;
currentCup = currentCup.Next;
// System.Console.WriteLine();
currentMove++;
}
// System.Console.WriteLine($"-- final --");
// dictMap.Print(currentCup);
}
