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

7
Task/Kaprekar-numbers/Mathematica/kaprekar-numbers.math Normal file
View file

@ -0,0 +1,7 @@
KaprekaQ[1] = True;
KaprekaQ[n_Integer] := Block[{data = IntegerDigits[n^2], last = False, i = 1},
While[i < Length[data] && FromDigits[data[[i + 1 ;;]]] =!= 0 && Not[last],
last = FromDigits[data[[;; i]]] + FromDigits[data[[i + 1 ;;]]] == n;
i++]; last];
Select[Range[10000], KaprekaQ]
Length[Select[Range[1000000], KaprekaQ]]