64 lines
1.1 KiB
Go
64 lines
1.1 KiB
Go
package daynine
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import (
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"advent-of-code/internal/registry"
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"os"
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"strconv"
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"strings"
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)
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func init() {
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registry.Register("2025D9", ParseInput, PartOne, PartTwo)
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}
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type Point struct {
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x, y int
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}
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func ParseInput(filepath string) []string {
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content, _ := os.ReadFile(filepath)
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return strings.Split(string(content), "\n")
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}
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func parsePoints(data []string) []Point {
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points := make([]Point, 0, len(data))
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for _, line := range data {
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parts := strings.Split(line, ",")
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x, _ := strconv.Atoi(parts[0])
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y, _ := strconv.Atoi(parts[1])
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points = append(points, Point{x: x, y: y})
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}
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return points
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}
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func abs(x int) int {
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if x < 0 {
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return -x
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}
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return x
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}
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func PartOne(data []string) int {
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points := parsePoints(data)
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maxArea := 0
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for i := range points {
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for j := 1; j < len(points); j++ {
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distanceX := abs(points[i].x - points[j].x)
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distanceY := abs(points[i].y - points[j].y)
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if distanceX > 0 && distanceY > 0 {
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area := (distanceX + 1) * (distanceY + 1)
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if area > maxArea {
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maxArea = area
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}
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}
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}
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}
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return maxArea
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}
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func PartTwo(data []string) int {
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return 0
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}
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