aoc2024/day-25/internal/one/solve.go

package one

import (
	"bytes"

	log "github.com/sirupsen/logrus"
)

func Solve(buf []byte) (int, error) {
	r := bytes.NewReader(buf)
	maxHeight, schematics, err := parseLines(r)
	if err != nil {
		return 0, err
	}

	var count int
	for _, lock := range schematics[kindOfLock] {
		for _, key := range schematics[kindOfKey] {
			if func() bool {
				for i := range key.heights {
					if key.heights[i]+lock.heights[i] > maxHeight {
						return false
					}
				}
				return true
			}() {
				count++
				log.Debugf("lock: %v and key: %v", lock.heights, key.heights)
			}
		}
	}

	return count, nil
}