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refactor: create parseInstruction and instruction{} to use it in both parts

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Sandro CURY CAZZANIGA
2025-12-01 21:31:51 +01:00
parent 345defec4d
commit a680e0ba48
1 changed files with 46 additions and 52 deletions
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98
internal/2015/DaySix/code.go
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@@ -16,40 +16,55 @@ func ParseInput(filepath string) []string {
return strings.Split(strings.TrimSpace(string(content)), "\n")
}
type instruction struct {
op string
x1, y1 int
x2, y2 int
}
func parseInstruction(line string) (instruction, bool) {
var op string
var remaining string
switch {
case strings.HasPrefix(line, "turn on "):
op = "on"
remaining = strings.TrimPrefix(line, "turn on ")
case strings.HasPrefix(line, "turn off "):
op = "off"
remaining = strings.TrimPrefix(line, "turn off ")
case strings.HasPrefix(line, "toggle "):
op = "toggle"
remaining = strings.TrimPrefix(line, "toggle ")
default:
return instruction{}, false
}
parts := strings.Split(remaining, " through ")
firstCoordinates := strings.Split(parts[0], ",")
secondCoordinates := strings.Split(parts[1], ",")
x1, _ := strconv.Atoi(firstCoordinates[0])
y1, _ := strconv.Atoi(firstCoordinates[1])
x2, _ := strconv.Atoi(secondCoordinates[0])
y2, _ := strconv.Atoi(secondCoordinates[1])
return instruction{op: op, x1: x1, y1: y1, x2: x2, y2: y2}, true
}
func PartOne(data []string) int {
grid := make([]bool, 1000*1000)
for _, line := range data {
var op string
var x1, y1, x2, y2 int
switch {
case strings.HasPrefix(line, "turn on "):
op = "on"
line = strings.TrimPrefix(line, "turn on ")
case strings.HasPrefix(line, "turn off "):
op = "off"
line = strings.TrimPrefix(line, "turn off ")
case strings.HasPrefix(line, "toggle "):
op = "toggle"
line = strings.TrimPrefix(line, "toggle ")
default:
instruction, ok := parseInstruction(line)
if !ok {
continue
}
parts := strings.Split(line, " through ")
firstCoordinates := strings.Split(parts[0], ",")
secondCoordinates := strings.Split(parts[1], ",")
x1, _ = strconv.Atoi(firstCoordinates[0])
y1, _ = strconv.Atoi(firstCoordinates[1])
x2, _ = strconv.Atoi(secondCoordinates[0])
y2, _ = strconv.Atoi(secondCoordinates[1])
for y := y1; y <= y2; y++ {
for x := x1; x <= x2; x++ {
for y := instruction.y1; y <= instruction.y2; y++ {
for x := instruction.x1; x <= instruction.x2; x++ {
idx := y*1000 + x
switch op {
switch instruction.op {
case "on":
grid[idx] = true
case "off":
@@ -74,36 +89,15 @@ func PartTwo(data []string) int {
grid := make([]int, 1000*1000)
for _, line := range data {
var op string
var x1, y1, x2, y2 int
switch {
case strings.HasPrefix(line, "turn on "):
op = "on"
line = strings.TrimPrefix(line, "turn on ")
case strings.HasPrefix(line, "turn off "):
op = "off"
line = strings.TrimPrefix(line, "turn off ")
case strings.HasPrefix(line, "toggle "):
op = "toggle"
line = strings.TrimPrefix(line, "toggle ")
default:
inst, ok := parseInstruction(line)
if !ok {
continue
}
parts := strings.Split(line, " through ")
firstCoordinates := strings.Split(parts[0], ",")
secondCoordinates := strings.Split(parts[1], ",")
x1, _ = strconv.Atoi(firstCoordinates[0])
y1, _ = strconv.Atoi(firstCoordinates[1])
x2, _ = strconv.Atoi(secondCoordinates[0])
y2, _ = strconv.Atoi(secondCoordinates[1])
for y := y1; y <= y2; y++ {
for x := x1; x <= x2; x++ {
for y := inst.y1; y <= inst.y2; y++ {
for x := inst.x1; x <= inst.x2; x++ {
idx := y*1000 + x
switch op {
switch inst.op {
case "on":
grid[idx]++
case "off":