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| author | June McEnroe <june@causal.agency> | 2021-12-07 09:59:09 -0500 |
|---|---|---|
| committer | June McEnroe <june@causal.agency> | 2021-12-07 09:59:09 -0500 |
| commit | 1cd316b36e10796c432a1f9221cf0a94c90a2ce0 (patch) | |
| tree | ce176e7db62c8c9eabff9fc6ef65a7719c3f06ca | |
| parent | Use postfix for more (diff) | |
| download | aoc-1cd316b36e10796c432a1f9221cf0a94c90a2ce0.tar.gz aoc-1cd316b36e10796c432a1f9221cf0a94c90a2ce0.zip | |
Solve day 7 part 1
| -rw-r--r-- | 2021/day07.pl | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/2021/day07.pl b/2021/day07.pl new file mode 100644 index 0000000..209bcb2 --- /dev/null +++ b/2021/day07.pl @@ -0,0 +1,7 @@ +use strict; +use warnings; +my @crabs = sort { $a <=> $b } split(/,/, <>); +my $median = $crabs[@crabs / 2]; +my $cost = 0; +$cost += abs($_ - $median) for @crabs; +print "$cost\n"; |