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  1. #!/usr/bin/perl
  2.  
  3. my $input = "ABCDACD{ACDA}ABCD";
  4. $input =~ s/({.*?})|(A)/{$2 ? "B" : $1}/ge;
  5. print $input;
Success #stdin #stdout 0s 18256KB
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Standard input is empty
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BBCDBCD{ACDA}BBCD
https://ideone.com/bK4c1Y
language:
Perl (perl 5.28.1)
created:
8 years ago
visibility:
public

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