adventofcode/2018/day08-1.go

package main

import (
	"fmt"

	"internal/day08"
	"internal/util"
)

func main() {
	data := util.ReadInputInts()
	root := day08.BuildTree(data)
	fmt.Println(sumMetadata(root))
}

func sumMetadata(node *day08.Node) int {
	sum := node.SumMetadata()

	for _, child := range node.Children {
		sum += sumMetadata(child)
	}

	return sum
}