feat: day 1 first part done

internal/day01/handle.go

@@ -0,0 +1,35 @@
+package day01
+
+import (
+	"math"
+	"sort"
+	"strings"
+
+	"aoc2024/internal/common"
+)
+
+func Handle(input []string) int {
+	list1 := make([]int, len(input))
+	list2 := make([]int, len(input))
+	distance := 0
+
+	for i, line := range input {
+		cols := strings.Split(line, "   ")
+		list1[i] = common.StrToInt(cols[0])
+		list2[i] = common.StrToInt(cols[1])
+	}
+
+	sort.Slice(list1, func(i, j int) bool {
+		return list1[i] < list1[j]
+	})
+
+	sort.Slice(list2, func(i, j int) bool {
+		return list2[i] < list2[j]
+	})
+
+	for i, v := range list1 {
+		distance = distance + int((math.Abs(float64(v - list2[i]))))
+	}
+
+	return distance
+}