static public void WritePermutationIndexLO(int[] permutation) // LO- lexicographical order
{
int[][] cyclePermutation = WithoutRepetition.PermutationToCycle(permutation);
long index = WithoutRepetition.PermutationIndexInLexOrder(permutation);
using (StreamWriter writer = new StreamWriter("log.txt", true))
{
WriteDate(writer);
WriteLine(writer, "Permutation index in lexicographical order: ");
WriteLine(writer);
Write(writer, "One-line notation: ");
WriteVector(writer, permutation);
WriteLine(writer);
Write(writer, "Canonical cycle notation: ");
WriteCycle(writer, cyclePermutation);
WriteLine(writer);
WriteLine(writer);
WriteLine(writer, "Index: " + index);
WriteLine(writer);
}
}
