14 lines
257 B
Text
14 lines
257 B
Text
Sub Main()
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Debug.Print F(-10)
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Debug.Print F(10)
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End Sub
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Private Function F(N As Long) As Variant
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If N < 0 Then
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F = "Error. Negative argument"
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ElseIf N <= 1 Then
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F = N
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Else
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F = F(N - 1) + F(N - 2)
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End If
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End Function
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