/// <summary>
/// https://adventofcode.com/2020/day/13#part2
/// </summary>
public static void Part2()
{
var notes = BusNotes.Parse(Input.Get(13));
var t = Contest(notes.BusIds.ToArray());
Console.WriteLine(t);
}
/// <summary>
/// https://adventofcode.com/2020/day/13
/// </summary>
public static void Part1()
{
var notes = BusNotes.Parse(Input.Get(13));
var earliest = notes.GetNextBus();
var waitTime = notes.GetWaitTime(earliest);
Console.WriteLine(earliest * waitTime);
}