/// <summary>
/// Reads a sequence of 8-bit extended ASCII characters over the alphabet
/// { A, C, T, G } from standard input; compresses them using two bits per
/// character; and writes the results to standard output.</summary>
///
public void Compress()
{
string s = input.ReadString();
int N = s.Length;
output.Write(N);
// Write two-bit code for char.
for (int i = 0; i < N; i++)
{
int d = DNA.ToIndex(s[i]);
output.Write(d, 2);
}
output.Close();
input.Close();
}
private Node get(Node x, string key, int d)
{
if (x == null)
{
return(null);
}
if (d == key.Length)
{
return(x);
}
char c = key[d];
return(get(x[alphabet.ToIndex(c)], key, d + 1));
}
public static void MainTest(string[] args)
{
TextInput StdIn = new TextInput();
Alphabet alphabet = new Alphabet(args[0]);
int R = alphabet.Radix;
int[] count = new int[R];
while (StdIn.HasNextChar())
{
char c = StdIn.ReadChar();
if (alphabet.Contains(c))
{
count[alphabet.ToIndex(c)]++;
}
}
for (int c = 0; c < R; c++)
{
Console.WriteLine(alphabet.ToChar(c) + " " + count[c]);
}
}