11 lines
431 B
Lua
11 lines
431 B
Lua
local permute, tablex = require("pl.permute"), require("pl.tablex")
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local permList, pStr = {
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"ABCD", "CABD", "ACDB", "DACB", "BCDA", "ACBD", "ADCB", "CDAB",
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"DABC", "BCAD", "CADB", "CDBA", "CBAD", "ABDC", "ADBC", "BDCA",
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"DCBA", "BACD", "BADC", "BDAC", "CBDA", "DBCA", "DCAB"
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}
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for perm in permute.iter({"A","B","C","D"}) do
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pStr = table.concat(perm)
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if not tablex.find(permList, pStr) then print(pStr) end
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end
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