public static PermutationBuilder GetCyclicPermsListIRS64(int t, BitmapFromList64 bb = null)
{
return delegate (IList<int> perm) {
var P = new CyclicPerms_MRRR ();
P.Build (perm, t, ListIBuilders.GetListIRS64(bb), ListIBuilders.GetListIFS());
return P;
};
}
public static SequenceBuilder GetSeqXLB(short t, BitmapFromList64 bitmap_builder)
{
return delegate (IList<int> seq, int sigma) {
var seqxl = new SeqXLB ();
seqxl.Build (seq, sigma, t, bitmap_builder);
return seqxl;
};
}
public void Build(IList<int> seq, int sigma, int t = 16, BitmapFromList64 bitmap_builder = null)
{
this.sigma = sigma;
long n = seq.Count;
var L = new long[n];
var counters = new int[sigma + 1];
// counters.Add (0, sigma); <- if ListIFS
for (int i = 0; i < n; ++i) {
var sym = seq [i];
try {
counters [sym + 1] += 1;
} catch (Exception e) {
Console.WriteLine ("===== sigma: {0}, sym: {1}, i: {2}, n: {3}", sigma, sym, i, n);
throw e;
}
}
for (int i = 1; i <= sigma; ++i) {
counters [i] += counters [i - 1];
}
for (int i = 0; i < n; ++i) {
var sym = seq [i];
long long_sym = n * ((long)sym) + i;
L [counters [sym]] = long_sym;
counters [sym] += 1;
}
counters = null;
/**** slow construction ****/
/*****
for (int i = 0; i < n; ++i) {
long s = seq [i];
L [i] = n * s + i;
//L.Add (n * s + i);
}
Array.Sort (L);
*****/
if (bitmap_builder == null) {
bitmap_builder = BitmapBuilders.GetSArray64 ();
}
this.xl_bitmap = bitmap_builder (L, n * sigma);
// now building the permutation for access
var p = new ListGen_MRRR ();
p.Build (this.GetNotIdxPERM (), t, null);
this.perm = p;
}
