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authorJune McEnroe <june@causal.agency>2021-12-01 13:24:24 -0500
committerJune McEnroe <june@causal.agency>2021-12-01 13:24:24 -0500
commitac71df84182b9ed15f633c12d4cbaaad071a810b (patch)
tree0fb17ead15d291fbc78326c578307252cceccb1a
parentSolve day 18 part 2 (diff)
downloadaoc-ac71df84182b9ed15f633c12d4cbaaad071a810b.tar.gz
aoc-ac71df84182b9ed15f633c12d4cbaaad071a810b.zip
Solve day 1 part 1
-rw-r--r--2021/day01.pl6
1 files changed, 6 insertions, 0 deletions
diff --git a/2021/day01.pl b/2021/day01.pl
new file mode 100644
index 0000000..f4ab273
--- /dev/null
+++ b/2021/day01.pl
@@ -0,0 +1,6 @@
+my $last, $incs;
+while (<>) {
+	$incs++ if ($last && $_ > $last);
+	$last = $_;
+}
+print "$incs\n";