public string modifiedStringBuilder(string[] sArr)
{
string output = "";
foreach (string s in sArr)
{
output += CommonCharacters.LeastCommonCharacters(s, 1);
}
return(output);
}
public void Execute()
{
Console.WriteLine("Advent of Code 2016 - Day 4");
string[] inputArr = null;
List <string> dectryptedStrings = new List <string>();
List <int> idList = new List <int>();
int total = 0;
try //Try to read the text file
{
inputArr = System.IO.File.ReadAllLines(@"./data/Day4.txt");
}
catch (Exception e)
{
Console.WriteLine("The file could not be read:");
Console.WriteLine(e.Message);
}
foreach (string line in inputArr)
{
string checksum = GetChecksum(line);
int sectorId = GetSectorId(line);
string data = GetData(line);
string commonChars = CommonCharacters.MostCommonCharacters(data, 5);
if (commonChars == checksum)
{
total += sectorId;
string shiftedString = ShiftCipher.applyCaseInsensitiveCipher(data, sectorId);
dectryptedStrings.Add(shiftedString);
idList.Add(sectorId);
}
}
foreach (string s in dectryptedStrings)
{
if (s.Contains("north"))
{
Console.WriteLine(s);
Console.WriteLine("The North Pole Storage is at sector ID: " + idList[dectryptedStrings.IndexOf(s)]);
}
}
Console.WriteLine("The total of all matching sector IDs is: " + total);
}