From 3555be54c2abb8d5ece008a60dbdfbde0ffbddd7 Mon Sep 17 00:00:00 2001
From: Alex Pickering <alex@cogarr.net>
Date: Fri, 7 Feb 2025 12:49:48 -0600
Subject: inital commit

---
 04/2.lua | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 04/2.lua

(limited to '04/2.lua')

diff --git a/04/2.lua b/04/2.lua
new file mode 100644
index 0000000..ae7d546
--- /dev/null
+++ b/04/2.lua
@@ -0,0 +1,16 @@
+#!/usr/bin/env lua
+
+local c = 0
+for line in io.lines() do
+	local s1, e1, s2, e2 = line:match("(%d+)-(%d+),(%d+)-(%d+)")
+	s1, e1, s2, e2 = tonumber(s1), tonumber(e1), tonumber(s2), tonumber(e2)
+	if
+		(s2 >= s1 and s2 <= e1) or
+		(e2 >= s1 and e2 <= e1) or
+		(s1 >= s2 and e1 <= e2) or
+		(s2 >= s1 and e2 <= e1)
+	then
+		c = c + 1
+	end
+end
+print(c)
-- 
cgit v1.2.3-70-g09d2