feat: solve day 12 and there is no part 2

This commit is contained in:
Stevan Freeborn
2025-12-24 08:35:14 -06:00
parent f99af72e2e
commit 52b76f4ce5
5 changed files with 351 additions and 48 deletions
+68 -21
View File
@@ -11,14 +11,17 @@ import (
"github.com/StevanFreeborn/advent-of-code-2025/internal/position"
)
// shape.GenerateAllVariants() []Shape
type Shape interface {
Id() int
GetKey() string
GenerateVariants() []Shape
RotateClockwise() Shape
FlipVertically() Shape
String() string
Area() int
MaxRow() int
MaxColumn() int
Positions() []position.Position
}
type shape struct {
@@ -46,37 +49,81 @@ func From(lines []string) Shape {
return shape{id: id, positions: positions}
}
func (s shape) Positions() []position.Position {
return s.positions
}
func (s shape) MaxRow() int {
maxRow := 0
for _, p := range s.positions {
if p.Row() > maxRow {
maxRow = p.Row()
}
}
return maxRow
}
func (s shape) MaxColumn() int {
maxColumn := 0
for _, p := range s.positions {
if p.Column() > maxColumn {
maxColumn = p.Column()
}
}
return maxColumn
}
func (s shape) Area() int {
return len(s.positions)
}
func (s shape) GenerateVariants() []Shape {
shapes := []Shape{}
var current Shape
current = s
numberOfTransformations := 4
// Rotate 90 clockwise
for range numberOfTransformations {
current = current.RotateClockwise()
shapes = append(shapes, current)
}
current = s
// Flip then rotate 90 clockwise
for range numberOfTransformations {
shapes = append(shapes, current)
flipped := current.FlipVertically()
shapes = append(shapes, flipped)
current = flipped.RotateClockwise()
current = current.RotateClockwise()
}
current = s
// Rotate 90 clockwise then flip
for range numberOfTransformations {
shapes = append(shapes, current)
rotated := current.RotateClockwise()
shapes = append(shapes, rotated)
current = rotated.FlipVertically()
}
// // Rotate 90 clockwise
// for range numberOfTransformations {
// current = current.RotateClockwise()
// shapes = append(shapes, current)
// }
//
// current = s
//
// // Flip then rotate 90 clockwise
// for range numberOfTransformations {
// shapes = append(shapes, current)
// flipped := current.FlipVertically()
// shapes = append(shapes, flipped)
// current = flipped.RotateClockwise()
// }
//
// current = s
//
// // Rotate 90 clockwise then flip
// for range numberOfTransformations {
// shapes = append(shapes, current)
// rotated := current.RotateClockwise()
// shapes = append(shapes, rotated)
// current = rotated.FlipVertically()
// }
//
// current = s
// rotated := current.RotateClockwise().RotateClockwise()
// flipped := rotated.FlipVertically()
// shapes = append(shapes, flipped)
seenShapes := map[string]Shape{}