Permutations: Difference between revisions
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(Added demo code second D version) |
(Lua) |
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[3,2,1] |
[3,2,1] |
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yes</lang> |
yes</lang> |
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=={{header|Lua}}== |
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<lang lua> |
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local function permutation(a, n) |
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if n == 0 then |
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print('{'..table.concat(a, ', ')..'}') |
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else |
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for i = 1, n do |
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a[i], a[n] = a[n], a[i] |
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permutation(a, n - 1) |
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a[i], a[n] = a[n], a[i] |
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end |
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end |
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end |
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permutation({1,2,3}, 3) |
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-- {2, 3, 1} |
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-- {3, 2, 1} |
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-- {3, 1, 2} |
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-- {1, 3, 2} |
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-- {2, 1, 3} |
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-- {1, 2, 3} |
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</lang> |
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=={{header|Mathematica}}== |
=={{header|Mathematica}}== |
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