aoc2024/day-05/internal/update/update.go

package update

import "slices"

type Update struct {
	Pages []int
}

func (u Update) Sort(orderings map[int][]int) {
	slices.SortFunc(u.Pages, func(p, q int) int {
		v, ok := orderings[p]
		if ok {
			if slices.Contains(v, q) {
				return -1
			}
			return 1
		}
		return 1
	})
}