14 lines
231 B
Dylan
14 lines
231 B
Dylan
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define method factorial (n)
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if (n < 1)
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error("invalid argument");
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end;
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local method loop (n)
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if (n <= 2)
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n
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else
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n * loop(n - 1)
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end
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end;
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loop(n)
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end method;
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