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Permutations

  • permutations
numbers = [1, 2, 3]
numbers.permutations.each { |num|
  puts num
}
[1, 2, 3]
[1, 3, 2]
[2, 1, 3]
[2, 3, 1]
[3, 1, 2]
[3, 2, 1]