public static string SolvePart2(bool test = false)
{
var puzzleInput = MyIO.ReadStringsFromFile(2021, 3, 1, test);
var oxygenCodes = new List <string>(puzzleInput);
var co2Codes = new List <string>(puzzleInput);
var result = 0;
var oxygenGeneratorRating = 0;
var co2ScrubberRating = 0;
for (int i = 0; i < puzzleInput[0].Length; i++)
{
if (oxygenCodes.Count > 1)
{
var oxygenGeneratorRatingCriteria = GetOxygenGeneratorRatingCriteria(oxygenCodes, i);
oxygenCodes = FilterListsByBitAtPositionI(oxygenCodes, i, oxygenGeneratorRatingCriteria);
}
if (co2Codes.Count > 1)
{
var co2ScrubberRatingCriteria = GetCO2ScrubberRatingCriteria(co2Codes, i);
co2Codes = FilterListsByBitAtPositionI(co2Codes, i, co2ScrubberRatingCriteria);
}
}
oxygenGeneratorRating = BinaryFunctions.ConvertStringToInt(oxygenCodes[0]);
co2ScrubberRating = BinaryFunctions.ConvertStringToInt(co2Codes[0]);
result = oxygenGeneratorRating * co2ScrubberRating;
return($"{result}");
}
public void ConvertBinaryStringsToInt()
{
var binary = "00001010";
var result = BinaryFunctions.ConvertStringToInt(binary);
Assert.AreEqual(10, result);
}
public static string SolvePart1(bool test = false)
{
var puzzleInput = MyIO.ReadStringsFromFile(2021, 3, 1, test);
var result = 0;
var gamma = "";
var epsilon = "";
if (puzzleInput.Any())
{
for (int i = 0; i < puzzleInput[0].Length; i++)
{
var ones = CountBitsInPositionI(puzzleInput, i, out var zeros);
gamma += ones > zeros ? "1" : "0";
epsilon += ones > zeros ? "0" : "1";
}
}
result = BinaryFunctions.ConvertStringToInt(gamma) * BinaryFunctions.ConvertStringToInt(epsilon);
return($"{result}");
}