From cc2d7d1a3d39a494c8ff15b34fdf9adbe270e517 Mon Sep 17 00:00:00 2001
From: Kharec <sandro@cazzaniga.fr>
Date: Thu, 4 Dec 2025 20:59:09 +0100
Subject: [PATCH] feat: solve part one using basic regex parsing

---
 internal/2015/DayTwelve/code.go | 35 +++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100644 internal/2015/DayTwelve/code.go

diff --git a/internal/2015/DayTwelve/code.go b/internal/2015/DayTwelve/code.go
new file mode 100644
index 0000000..4294a9e
--- /dev/null
+++ b/internal/2015/DayTwelve/code.go
@@ -0,0 +1,35 @@
+package daytwelve
+
+import (
+	"advent-of-code/internal/registry"
+	"os"
+	"regexp"
+	"strconv"
+	"strings"
+)
+
+func init() {
+	registry.Register("2015D12", ParseInput, PartOne, PartTwo)
+}
+
+func ParseInput(filepath string) []string {
+	content, _ := os.ReadFile(filepath)
+	return strings.Split(string(content), "\n")
+}
+
+func PartOne(data []string) int {
+	re := regexp.MustCompile(`-?\d+`)
+	sum := 0
+	for _, line := range data {
+		matches := re.FindAllString(line, -1)
+		for _, match := range matches {
+			number, _ := strconv.Atoi(match)
+			sum += number
+		}
+	}
+	return sum
+}
+
+func PartTwo(data []string) int {
+	return 0
+}