2 lines
205 B
Scala
2 lines
205 B
Scala
println("missing perms: "+("ABCD".permutations.toSet
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--"ABCD CABD ACDB DACB BCDA ACBD ADCB CDAB DABC BCAD CADB CDBA CBAD ABDC ADBC BDCA DCBA BACD BADC BDAC CBDA DBCA DCAB".stripMargin.split(" ").toSet))
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