From 7de5fa7794580dcbdffbbcc4062165955a63e0e2 Mon Sep 17 00:00:00 2001
From: Kharec <sandro@cazzaniga.fr>
Date: Sat, 6 Dec 2025 23:40:20 +0100
Subject: [PATCH] fix: update parsing to avoid doing split in both functions

---
 internal/2021/DayFour/code.go | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/internal/2021/DayFour/code.go b/internal/2021/DayFour/code.go
index cdb471a..5e9248c 100644
--- a/internal/2021/DayFour/code.go
+++ b/internal/2021/DayFour/code.go
@@ -14,9 +14,9 @@ func init() {
 	registry.Register("2021D4", ParseInput, PartOne, PartTwo)
 }
 
-func ParseInput(filepath string) string {
+func ParseInput(filepath string) []string {
 	content, _ := os.ReadFile(filepath)
-	return string(content)
+	return strings.Split(strings.TrimSpace(string(content)), "\n")
 }
 
 type board struct {
@@ -113,8 +113,7 @@ func parseNumbers(line string) []int {
 	return numbers
 }
 
-func PartOne(input string) int {
-	lines := strings.Split(strings.TrimSpace(input), "\n")
+func PartOne(lines []string) int {
 	numbers := parseNumbers(lines[0])
 	boards := parseBoards(lines[1:])
 
@@ -129,6 +128,6 @@ func PartOne(input string) int {
 	return 0
 }
 
-func PartTwo(input string) int {
+func PartTwo(lines []string) int {
 	return 0
 }