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  1. #!/usr/bin/perl -a
  2. use 5.10.0;
  3. @a=($F[-1]-$b?$b:2*pop@F,@a)while$b=pop@F;say"@a"
Success #stdin #stdout 0s 6056KB
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stdin
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3 3 3 1 1 7 5 5 5 5
stdout
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3 6 2 7 10 10
https://ideone.com/1tKnMa
language:
Perl (perl 5.28.1)
created:
8 years ago
visibility:
public

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