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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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Task/Hofstadter-Q-sequence/PureBasic/hofstadter-q-sequence.basic Normal file
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If Not OpenConsole("Hofstadter Q sequence")
End 1
EndIf
#N = 100000
Define i.i, flip.i = 0
Dim q.i(#N)
q(1) = 1
q(2) = 1
For i = 3 To #N
q(i) = q(i - q(i - 1)) + q(i - q(i - 2))
Next
For i = 1 To #N - 1
flip + Bool(q(i) > q(i + 1))
Next
Print(~"First ten:\t")
For i = 1 To 10 : Print(LSet(Str(q(i)), 3)) : Next
PrintN(~"\n1000th:\t\t" + Str(q(1000)))
PrintN(~"Flips:\t\t" + Str(flip))
Input()
End