20 lines
418 B
Ada
20 lines
418 B
Ada
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with Ada.Text_IO, Ada.Command_Line;
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procedure Fib is
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X: Positive := Positive'Value(Ada.Command_Line.Argument(1));
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function Fib(P: Positive) return Positive is
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begin
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if P <= 2 then
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return 1;
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else
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return Fib(P-1) + Fib(P-2);
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end if;
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end Fib;
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begin
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Ada.Text_IO.Put("Fibonacci(" & Integer'Image(X) & " ) = ");
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Ada.Text_IO.Put_Line(Integer'Image(Fib(X)));
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end Fib;
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