static byte[] SaveBlum(int[] seq, string name)
{
var min = seq.Min();
var max = seq.Max();
var blum = new BitArray(max - min + 1, false);
foreach (var n in seq)
{
blum[n - min] = true;
}
var bytes = BitConverter.GetBytes(min).Concat(HuffmanHelper.ToByteArray(blum)).ToArray();
bytes.WriteToGzip(name + "-blum");
return(bytes);
}
static byte[] SaveHuffman(int[] seq, string name)
{
var seqdiff = seq.Distinct().Diff((a, b) => b - a).ToArray();
var coder = new HuffmanCoder <int>();
coder.Build(seqdiff);
var encoded = coder.Encode(seqdiff);
var freq = coder.GetFrequencies();
var seqhuff = BitConverter.GetBytes((short)(freq.Length))
.Concat(HuffmanHelper.ToByteArray(freq))
.Concat(HuffmanHelper.ToByteArray(encoded))
.ToArray();
seqhuff.WriteToGzip(name + "-huff");
return(seqhuff);
}