aparler/RosettaCodeData
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Initial data commit

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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 72d218235f
commit f23f22d71c
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17
Task/Permutations/Lua/permutations-1.lua Normal file
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local function permutation(a, n, cb)
if n == 0 then
cb(a)
else
for i = 1, n do
a[i], a[n] = a[n], a[i]
permutation(a, n - 1, cb)
a[i], a[n] = a[n], a[i]
end
end
end
--Usage
local function callback(a)
print('{'..table.concat(a, ', ')..'}')
end
permutation({1,2,3}, 3, callback)