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  1. #!perl -p0
  2. /
  3. /;($x="($`)")=~y!#!.!;1while s/#(.*
  4. $)/%$1/+s/#$x?%|%$x?#/%$1$2%/s;1while
  5. s/#$x\./.$1#/s;y!%!#!
Success #stdin #stdout 0s 3564KB
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stdin
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...#..
.#..#.
.#..##
.#...#
.#####
.#...#
stdout
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......
.#..#.
.#..##
.#.#.#
.#####
.#...#
https://ideone.com/7E3gQh
language:
Perl (perl 5.28.1)
created:
10 years ago
visibility:
public

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