/// <summary>
/// ChristmasCracker.Cmd entry point
/// </summary>
/// <param name="args">Command line arguments (not used)</param>
static void Main(string[] args)
{
var filePath = "./input";
var reader = new FileReader();
var inputStrings = reader.ReadFileByLines(filePath);
if (inputStrings.Where(input => long.TryParse(input, out var _) == false).Any())
{
throw new FormatException("Input file must be only integers");
}
var inputs = inputStrings.Select(input => long.Parse(input));
var preambleLength = 25;
var cracker = new Cracker();
var results = cracker.FindUnsummableNumbers(preambleLength, 2, inputs);
var unSummableNumber = results.First();
Console.WriteLine(unSummableNumber);
var attackResults = cracker.AttackUnsummableNumber(unSummableNumber, inputs).OrderBy(s => s);
var key = attackResults.First() + attackResults.Last();
Console.WriteLine(key);
}
public void AttackUnsummableNumber_GivenValidMessageAndNumber_ReturnsExpectedResults()
{
var message = new long[] {
35,
20,
15,
25,
47,
40,
62,
55,
65,
95,
102,
117,
150,
182,
127,
219,
299,
277,
309,
576
};
var unSummableNumber = 127L;
var expectedResults = new long[]
{
15,
25,
47,
40
};
var sut = new Cracker();
var result = sut.AttackUnsummableNumber(unSummableNumber, message);
Assert.Equal(expectedResults, result);
}
