public IEnumerable <UBasCov> IEGet_BaseSet(int sz, int rnk)
{
if (UGLLst == null)
{
yield break;
}
BSstatus = new BaseSet_Status(sz, rnk);
List <UGLink> basUGLs = BSstatus.basUGLs; //BaseSet List
Bit981 HB981 = BSstatus.HB981; //BaseSet bitPattern
Bit324 usedLK = BSstatus.usedLK; //usedLink(by serial number)
List <int> usedLKLst = BSstatus.usedLKLst;
long RCBN_frameA = 0;
_jkc_ = 0;
var cmbBas = new Combination(UGLLst.Count, sz);
int nxt = int.MaxValue; //(skip function)
while (cmbBas.Successor(nxt))
{
GeneralLogicGen.ChkBas0++; //*****
_jkc_++;
// sz=1 *==*==*==*==*==*==*==*==*==*==*==*==*==*==*==*==*==*==*==*==*==*==*==*
if (sz == 1)
{
UGLink UGL = UGLLst[cmbBas.Index[0]];
if (UGL.UC is UCell)
{
goto LNextSet; //only row/column/block link.
}
HB981.Clear(); HB981.BPSet(UGL.rcBit81.no, UGL.rcBit81, tfbSet: false); //accumulate rcbn info. in HB981.
basUGLs.Clear(); basUGLs.Add(UGL); //set UGL in BaseSet
GeneralLogicGen.ChkBas1++; //*****
goto LBSFound; //possibility of solution
}
//===================================================================================================================
// sz>=2 *==*==*==*==*==*==*==*==*==*==*==*==*==*==*==*==*==*==*==*==*==*==*==*
HB981.Clear();
basUGLs.Clear();
usedLKLst.Clear();
BSstatus.Clear();
RCBN_frameA = 0;
int[] _RCB_frameB = new int[9];
for (int k = 0; k < sz; k++) //(r:row c:column b:block n:digit => rcbn)
{
nxt = k;
UGLink UGL = UGLLst[cmbBas.Index[k]];
RCBN_frameA |= UGL.RCBN_frameB; //bit expression of rcbn
if (!Check_rcbnCondition(sz, rnk, k, RCBN_frameA))
{
goto LNextSet; //### extremely efficient
}
if (UGL.rcBit81 is Bit81) // ........................ rcb link ........................
{
int no = UGL.rcBit81.no;
if (k > 0 && HB981.IsHit(no, UGL.rcBit81))
{
goto LNextSet; //elements already included in HB981
}
HB981.BPSet(no, UGL.rcBit81, tfbSet: true); //accumulate rcbn info. in HB981.
usedLKLst.Add(UGL.rcBit81.ID); //(ID=tfx<<4 | no) //[rcb_link type]register ID to used list.
_RCB_frameB[no] |= (int)UGL.RCBN_frameB & 0x3FFFFFF;
}
else // ....................... Cell link ........................
{
UCell UC = UGL.UC;
int rc = UC.rc;
//In UGLLst, rcb-Links is first, and cell-Links is second.
//Even in combination, this order is maintained.
//Therefore, the condition "cell-links have common parts with rcb-Links?" is satisfied.
foreach (var no in UC.FreeB.IEGet_BtoNo(9))
{
if (k > 0 && HB981.IsHit(no, rc))
{
goto LNextSet; //Not BaseSet as it has no intersection.
}
HB981.BPSet(no, rc, tfbSet: true); //accumulate rcbn info. in HB981.
_RCB_frameB[no] |= rc.ToRCBitPat();
}
int IDrc = rc << 4 | 0xF; //( 0xF:Cell type identification flag )
usedLKLst.Add(IDrc); //(ID=rc<<4| no) //[cell type]register ID to used list.
}
basUGLs.Add(UGL); //set UGL in BaseSet
// ...........................................................
}
BSstatus.RCB_frameB = _RCB_frameB;
__UsedLinkToFrame(HB981, usedLKLst, BSstatus);
//// if(SDK_Ctrl.UGPMan.stageNo==8 && _usedLKLst_ToRCBString("",usedLKLst)==" c1#3 c1#6"){
//// Board_Check("*** Check_6 ?");
//// }
if (SDK_Ctrl.UGPMan.stageNo == 20 && _usedLKLst_ToRCBString("", usedLKLst) == " r3#2 r4#2 r3#8")
{
WriteLine(_usedLKLst_ToRCBString($"usedLKLst:{_jkc_}", usedLKLst, addFreeBB: true));
Board_Check();
}
//*==*==*==*==*==*==*==*==*==*==*==*==*==*==*==*==*==*==*==*==*==*==*==*
// Board_Check();
//1..4....8.9.1...5.....63.....13.5.79..3...8..76.2.94.....75.....1...6.4.8....4..2
if (!BSstatus.Check_1())
{
goto LNextSet; //A and B are not linked by other link(C).
}
if (!BSstatus.Check_2())
{
goto LNextSet; //Each cell(A) is in a position to link with other cells.
}
if (!BSstatus.Check_3())
{
goto LNextSet; //There is a limit to the number of cells that have no links other than BaseSet.
}
//*==*==*==*==*==*==*==*==*==*==*==*==*==*==*==*==*==*==*==*==*==*==*==*
/*
* //if(SDK_Ctrl.UGPMan.stageNo==12 && sz>=3){// && rnk==1 ){
* if(SDK_Ctrl.UGPMan.stageNo==9 && sz>=2){// && rnk==1 ){
* WriteLine($"\r sz:{sz} rnk:{rnk} jkc:{_jkc_}");
* Check_rcbnCondition(sz,rnk,sz,RCBN_frameA,printB:true);
* basUGLs.ForEach(P=>WriteLine(P.ToString("BaseSet")));
* }
*/
LBSFound:
usedLK.Clear();
basUGLs.ForEach(P => usedLK.BPSet(P.IDnum)); //IDrc: rc<<17 | 1<<16
UBasCov UBC = new UBasCov(basUGLs, HB981, sz, usedLK);
yield return(UBC);
//---------------------------------------------------------------------------------------
LNextSet:
continue;
}
yield break;
void __UsedLinkToFrame(Bit981 HB981, List <int> usedLKLst, BaseSet_Status BSstatus)
{
int[] _frame_0 = new int[9];
int[] _frame_1 = new int[9];
Bit81 _frame_T = new Bit81();
int frm, _cellC = 0;
foreach (var no in HB981.noBit.IEGet_BtoNo())
{
_frame_0[no] = frm = HB981._BQ[no].IEGetRC().Aggregate(0, (Q, rc) => Q | rc.ToRCBitPat());
_frame_1[no] = ___frame_ResetUsed(frm, no, usedLKLst);
_frame_T |= HB981._BQ[no];
}
Bit81 _frame_81 = new Bit81(_frame_T);
usedLKLst.ForEach(P => { if ((P & 0xF) == 0xF)
{
_frame_81.BPReset(P >> 4); _cellC++;
}
});
BSstatus._frame_0 = _frame_0;
BSstatus._frame_1 = _frame_1;
BSstatus._frame_T = _frame_T;
BSstatus._frame_81 = _frame_81;
BSstatus._cellC = _cellC; //(Number of cell links in BaseSet)
}
}
public void Initialize()
{
BSstatus = null;
}