RosettaCodeData/Task/Self-describing-numbers/Mathematica/self-describing-numbers.math
Ingy döt Net b83f433714 tasks a-s
2013-04-10 23:57:08 -07:00

1 line
94 B
Text

isSelfDescribing[n_Integer] := (RotateRight[DigitCount[n]] == PadRight[IntegerDigits[n], 10])