RosettaCodeData/Task/Gray-code/Scala/gray-code-3.scala
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2013-04-10 21:29:02 -07:00

4 lines
111 B
Scala

def decode(n:Long)={
def calc(g:Long,bits:Long):Long=if (bits>0) calc(g^bits, bits>>1) else g
calc(0, n)
}