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  1. #!/usr/bin/perl
  2. use 5.016;
  3. use warnings;
  4.  
  5. sub f {
  6. 	my $n = 0;
  7. 	return sub {
  8. 		@_ < 1 ? $n++ : [ map{ __SUB__->(@_[1 .. $#_]) } (1 .. $_[0]) ]
  9. 	}->(@_);
  10. }
  11.  
  12. use Data::Dumper;
  13. local $Data::Dumper::Terse = 1;
  14. local $Data::Dumper::Indent = 0;
  15.  
  16. my $aa = f(2, 3, 4);
  17. say Dumper($aa);
  18. say $aa->[1][2][3];
  19.  
Success #stdin #stdout 0.02s 5172KB
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Standard input is empty
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[[[0,1,2,3],[4,5,6,7],[8,9,10,11]],[[12,13,14,15],[16,17,18,19],[20,21,22,23]]]
23
https://ideone.com/ErsNJA
language:
Perl (perl 5.28.1)
created:
10 years ago
visibility:
public

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