static public void WriteReverse(int[] permutation)
{
int[] reversePermutation = WithoutRepetition.ReversePermutation(permutation);
int[][] cycleReversePermutation = WithoutRepetition.PermutationToCycle(reversePermutation);
int[][] cyclePermutation = WithoutRepetition.PermutationToCycle(permutation);
using (StreamWriter writer = new StreamWriter("log.txt", true))
{
WriteDate(writer);
WriteLine(writer, "Reverse permutation:");
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, "Result:");
WriteLine(writer);
Write(writer, "One-line notation: ");
WriteVector(writer, reversePermutation);
WriteLine(writer);
Write(writer, "Canonical cycle notation: ");
WriteCycle(writer, cycleReversePermutation);
WriteLine(writer);
}
}
internal static bool isAnyReverse(int[][] permutations)
{
for (int i = 0; i < permutations.Length; i++)
{
bool flag = false;
for (int j = 0; j < permutations.Length; j++)
{
if (!flag)
{
int[] reverse = WithoutRepetition.ReversePermutation(permutations[j]);
if (ArrayFunctions.compareIntArrays(permutations[i], reverse))
{
flag = true;
}
}
}
if (!flag)
{
return(false);
}
}
return(true);
}
