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authorJune McEnroe <june@causal.agency>2021-12-06 10:31:29 -0500
committerJune McEnroe <june@causal.agency>2021-12-06 10:31:29 -0500
commit13cfd360455813f67dee7f411cf9590d444948a5 (patch)
tree7b7fea6e7ff0249390a2b5e237abc699bae930bc /2021
parentSolve day 5 part 2 (diff)
downloadaoc-13cfd360455813f67dee7f411cf9590d444948a5.tar.gz
aoc-13cfd360455813f67dee7f411cf9590d444948a5.zip
Solve day 6 part 1
Diffstat (limited to '2021')
-rw-r--r--2021/day06.pl16
1 files changed, 16 insertions, 0 deletions
diff --git a/2021/day06.pl b/2021/day06.pl
new file mode 100644
index 0000000..b296a4c
--- /dev/null
+++ b/2021/day06.pl
@@ -0,0 +1,16 @@
+use strict;
+use warnings;
+my @fish = split(/,/, <>);
+for (1..80) {
+	my @spawns;
+	for my $f (@fish) {
+		if ($f) {
+			$f--;
+		} else {
+			$f = 6;
+			push @spawns, 8;
+		}
+	}
+	push @fish, @spawns;
+}
+print scalar(@fish), "\n";