Mutual recursion: Difference between revisions
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(Logo) |
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}</lang> |
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=={{header|Logo}}== |
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Like Lisp, symbols in Logo are late-bound so no special syntax is required for forward references. |
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<lang logo> |
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to m :n |
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if 0 = :n [output 0] |
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output :n - f m :n-1 |
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end |
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to f :n |
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if 0 = :n [output 1] |
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output :n - m f :n-1 |
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end |
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show cascade 20 [lput m #-1 ?] [] |
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[1 1 2 2 3 3 4 5 5 6 6 7 8 8 9 9 10 11 11 12] |
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show cascade 20 [lput f #-1 ?] [] |
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[0 0 1 2 2 3 4 4 5 6 6 7 7 8 9 9 10 11 11 12] |
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</lang> |
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=={{header|Objective-C}}== |
=={{header|Objective-C}}== |