public void FirstStar()
{
var actual = new Problem().FirstStar();
Assert.Equal("15035", actual);
}
public void SecondStar()
{
var actual = new Problem().SecondStar();
Assert.Equal("19968", actual); // 4 min 10 s
}
public void Find_Match(string input, char?expected)
{
var c = Problem.FirstRepeatedCharacter(input, 3);
Assert.Equal(expected, c);
}