2024 Day 6 Complete!

helpers/coordinateByteMap.go

@@ -34,6 +34,21 @@ func NewCoordByteMap() CoordByteMap {
 	}
 }
 
+func (m *CoordByteMap) Copy() *CoordByteMap {
+	c := CoordByteMap{
+		Field:           make(map[Coordinate]byte),
+		TLX:             m.TLX,
+		TLY:             m.TLY,
+		BRX:             m.BRX,
+		BRY:             m.BRY,
+		StringEmptyByte: m.StringEmptyByte,
+	}
+	for i := range m.Field {
+		c.Field[i] = m.Field[i]
+	}
+	return &c
+}
+
 func StringSliceToCoordByteMap(input []string) CoordByteMap {
 	ret := CoordByteMap{
 		Field: make(map[Coordinate]byte),
@@ -259,7 +274,7 @@ func (m *CoordByteMap) FindLast(b byte) (Coordinate, error) {
 			}
 		}
 	}
-	return Coordinate{}, errors.New("Not Found")
+	return Coordinate{}, errors.New("not found")
 }
 
 func (m *CoordByteMap) FindAll(b ...byte) []Coordinate {

helpers/helpers.go

@@ -31,6 +31,12 @@ const (
 	SHRUG = "¯\\_(ツ)_/¯"
 )
 
+func CheckErr(err error) {
+	if err != nil {
+		panic(err)
+	}
+}
+
 // Fact returns the factorial of the given int
 func Fact(x int) int {
 	var ret int
@@ -402,6 +408,7 @@ func SliceMin(sl []int) int {
 		return Min(sl[0], sl[1], sl[2:]...)
 	}
 }
+
 func Min(v1, v2 int, vrest ...int) int {
 	min := v2
 	if v1 < v2 {
@@ -440,3 +447,17 @@ func Sum(l, h int) int {
 func ManhattanDistance(x1, y1, x2, y2 int) int {
 	return AbsInt(x1-x2) + AbsInt(y1-y2)
 }
+
+func PromptUser(text string, required bool) string {
+	var resp string
+	fmt.Print(text + ": ")
+	scanner := bufio.NewScanner(os.Stdin)
+	if scanner.Scan() {
+		resp = scanner.Text()
+	}
+	if resp == "" && required {
+		fmt.Println("Non-empty response is required")
+		return PromptUser(text, required)
+	}
+	return strings.TrimSpace(resp)
+}