aoc2024/day-06/internal/two/graph.go
onyx-and-iris 08706ecc11 make use of graph factory function.
move isLoop logic into guard clause.
2024-12-06 22:23:01 +00:00

35 lines
635 B
Go

package two
import (
"strings"
"github.com/onyx-and-iris/aoc2024/day-06/internal/util"
)
type graph struct {
startPoint point
data []string
}
func newGraph(startPoint point, data []string) *graph {
return &graph{startPoint: startPoint, data: data}
}
func (g *graph) String() string {
return strings.Join(g.data, "\n")
}
func (g *graph) valueAt(x, y int) rune {
return rune(g.data[y][x])
}
func (g *graph) trace(visited map[point]struct{}) string {
for loc := range visited {
if !(rune(g.data[loc.y][loc.x]) == 'O') {
g.data[loc.y] = util.ReplaceAtIndex(g.data[loc.y], '+', loc.x)
}
}
return g.String()
}