From: Jan "Yenya" Kasprzak <kas@fi.muni.cz>
Date: Wed, 1 Dec 2021 05:11:09 +0000 (+0100)
Subject: Day 1. Got 504 gateway timeout :(
X-Git-Url: https://www.fi.muni.cz/~kas/git//home/kas/public_html/git/?p=aoc2021.git;a=commitdiff_plain;h=e248e4355dd8002b8ea6cfa5b9ada19a32676110

Day 1. Got 504 gateway timeout :(
---

e248e4355dd8002b8ea6cfa5b9ada19a32676110
diff --git a/01.pl b/01.pl
new file mode 100755
index 0000000..f1912b2
--- /dev/null
+++ b/01.pl
@@ -0,0 +1,14 @@
+#!/usr/bin/perl -w
+
+use strict;
+
+my $prev;
+my $inc;
+while (<>) {
+	chomp;
+	$inc++ if $prev && $_ > $prev;
+	$prev = $_;
+}
+
+print $inc, "\n";
+
diff --git a/02.pl b/02.pl
new file mode 100755
index 0000000..b9fbfb5
--- /dev/null
+++ b/02.pl
@@ -0,0 +1,15 @@
+#!/usr/bin/perl -w
+
+use strict;
+
+chomp (my @a = <>);
+my $prev;
+my $inc;
+
+for my $i (0 .. $#a-2) {
+	my $sum = $a[$i]+$a[$i+1]+$a[$i+2];
+	$inc++ if $prev && $sum > $prev;
+	$prev = $sum;
+}
+
+print "$inc\n";