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  1. #!perl -p0
  2. /.
  3. /;$"=".{@-}";s%0%s/\G0/2/r!~/2((.$")?2(.$")?|2$"|$"2)2/s*1%eg
Success #stdin #stdout 0s 6000KB
comments (?)
stdin
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0000000200
0002002000
0000000002
0220002200
0000000000
stdout
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1111110211
1112112011
1001110012
0220102201
1001110011
https://ideone.com/cVbss2
language:
Perl (perl 5.28.1)
created:
9 years ago
visibility:
public

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