public static void Day6a()
{
Stopwatch sw = new Stopwatch();
List <Core.Point> destinations = new List <Core.Point>();
int maxX = 0;
int maxY = 0;
string line;
string[] lineSplit;
IAlphabetProvider provider = null;
string alpha = String.Empty;
Dictionary <char, int[, ]> overlays = new Dictionary <char, int[, ]>();
//Dictionary<int[,], Day6Spot> heatmap = new Dictionary<int[,], Day6Spot>();
char[,] heatmap = null;
int[,] heatmapvalues = null;
List <Day6Spot> d6s = new List <Day6Spot>();
using (Stream stream = thisExe.GetManifestResourceStream("AdventOfCode2018._data.AdventOfCode_Day6.txt"))
using (StreamReader reader = new StreamReader(stream))
{
while ((line = reader.ReadLine()) != null)
{
lineSplit = line.RemoveWhitespace().Split(',');
Core.Point point = new Core.Point(Convert.ToInt32(lineSplit[0]), Convert.ToInt32(lineSplit[1]));
destinations.Add(point);
}
}
if (destinations.Count <= 26)
{
provider = new EnglishAlphabetProvider();
}
else if (destinations.Count <= 61)
{
provider = new LargerUniqueAlphabetProvider();
}
else
{
throw new Exception("Are you serious? Too many elements! ?: " + destinations.Count);
}
foreach (char c in provider.GetAlphabet(destinations.Count))
{
alpha += c;
}
maxX = (destinations.OrderBy(d => d.X).LastOrDefault()).X + 1;
maxY = (destinations.OrderBy(d => d.Y).LastOrDefault()).Y + 1;
int[,] coordMap = new int[maxX, maxY];
Parallel.ForEach(destinations, p =>
{
char c;
lock (alpha)
{
c = alpha[0];
alpha = alpha.Remove(alpha.IndexOf(c), 1);
}
overlays.Add(c, GetRotaryValues(coordMap, p));
});
/*
* for (int i = 0; i < coordMap.GetLength(0); i++)
* for (int ii = 0; ii < coordMap.GetLength(1); ii++)
* {
* heatmap.Add(new int[i, ii]);
* }
*/
heatmap = new char[maxX, maxY];
heatmapvalues = new int[maxX, maxY];
for (int i = 0; i < coordMap.GetLength(0); i++)
{
for (int ii = 0; ii < coordMap.GetLength(1); ii++)
{
heatmapvalues[i, ii] = 99;
}
}
foreach (KeyValuePair <char, int[, ]> kvp in overlays)
{
for (int i = 0; i < heatmap.GetLength(0); i++)
{
for (int ii = 0; ii < heatmap.GetLength(1); ii++)
{
if (kvp.Value[i, ii] < heatmapvalues[i, ii])
{
heatmap[i, ii] = kvp.Key;
heatmapvalues[i, ii] = kvp.Value[i, ii];
}
else if (kvp.Value[i, ii] == heatmapvalues[i, ii])
{
heatmap[i, ii] = '*';
}
}
}
}
/*
* StringBuilder sb = new StringBuilder();
* StringBuilder sb2 = new StringBuilder();
*
* for (int i = 0; i < heatmap.GetLength(0); i++)
* {
* for (int ii = 0; ii < heatmap.GetLength(1); ii++)
* {
* sb.Append(heatmap[i, ii].ToString().PadLeft(2));
* sb2.Append(heatmapvalues[i, ii].ToString().PadLeft(2));
* }
*
* sb.Append(Environment.NewLine);
* sb2.Append(Environment.NewLine);
* }
*
* File.WriteAllText("heatmap.txt", sb.ToString());
* File.WriteAllText("heatmapvalues.txt", sb2.ToString());
*/
foreach (var v in heatmap)
{
Day6Spot d6;
d6 = d6s.FirstOrDefault(x => x.c == v);
if (d6 != null)
{
d6.count++;
}
else
{
d6s.Add(new Day6Spot(v, 1));
}
}
/*
* sb = new StringBuilder();
*
* foreach (var v in d6s)
* {
* sb.Append("Char: " + v.c + " Count:" + v.count.ToString().PadLeft(6));
* sb.Append(Environment.NewLine);
* }
*
* File.WriteAllText("countsPerChar.txt", sb.ToString());
*/
}
public AlphabetSequence(IAlphabetProvider alphabet)
{
_alphabet = alphabet;
}
