aparler/RosettaCodeData
1
0
Fork 0
Code Issues 12 Pull requests 3 Projects Releases Packages Wiki Activity Actions

Data commit

Browse source
This commit is contained in:
Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
199093 changed files with 3378972 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

19
Task/Solve-a-Holy-Knights-tour/Mathematica/solve-a-holy-knights-tour.math Normal file
View file

@ -0,0 +1,19 @@
puzzle = " 0 0 0
0 0 0
0 0 0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
1 0 0 0 0 0 0
0 0 0
0 0 0";
puzzle = StringSplit[puzzle, "\n"];
puzzle = StringTake[#, {1, -1, 2}] & /@ puzzle;
pos0 = Join @@ Table[{i, #} & /@ StringPosition[puzzle[[i]], "0"][[All, 1]], {i, Length@puzzle}];
pos1 = Join @@ Table[{i, #} & /@ StringPosition[puzzle[[i]], "1"][[All, 1]], {i, Length@puzzle}];
allpoints = Join[pos1, pos0];
validmoves = Select[Subsets[allpoints, {2}], Differences /* Norm /* EqualTo[Sqrt[5]]];
g = Graph[UndirectedEdge @@@ validmoves];
e = VertexList[g];
order = FindShortestTour[g][[2]]
Graphics[{Red, Disk[#, 0.2] & /@ e, Black, BlockMap[Arrow, e[[order]], 2, 1]}]