From e37b3ebf682be8b9b3ba0ddfc53eb2cd1768b22c Mon Sep 17 00:00:00 2001
From: Thomas Voss <mail@thomasvoss.com>
Date: Sun, 7 Dec 2025 06:35:29 +0100
Subject: Add 2025 day 2 solutions

---
 2025/02/.gitignore |  1 +
 2025/02/Makefile   |  1 +
 2025/02/puzzles.sh | 12 ++++++++++++
 3 files changed, 14 insertions(+)
 create mode 100644 2025/02/.gitignore
 create mode 100644 2025/02/Makefile
 create mode 100644 2025/02/puzzles.sh

diff --git a/2025/02/.gitignore b/2025/02/.gitignore
new file mode 100644
index 0000000..62d9f48
--- /dev/null
+++ b/2025/02/.gitignore
@@ -0,0 +1 @@
+puzzle-[12].sh
diff --git a/2025/02/Makefile b/2025/02/Makefile
new file mode 100644
index 0000000..c1620aa
--- /dev/null
+++ b/2025/02/Makefile
@@ -0,0 +1 @@
+include ../../Makefiles/sh.mk
diff --git a/2025/02/puzzles.sh b/2025/02/puzzles.sh
new file mode 100644
index 0000000..0ad12cc
--- /dev/null
+++ b/2025/02/puzzles.sh
@@ -0,0 +1,12 @@
+#!/bin/sh
+
+# START PART 1
+readonly REGEXP='^([0-9]+)\1$'
+# END PART 1 START PART 2
+readonly REGEXP='^([0-9]+)\1+$'
+# END PART 2
+
+tr ',' '\n' <input | while IFS=- read -r x y
+do
+	seq -f %1.0f $x $y
+done | grep -E "$REGEXP" | awk '{ n += $1 } END { print n }'
-- 
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