day15_part2.go

package day15_part2

import (
	"strings"

	"GoAdventOfCode/util"
)

type Ingredient struct {
	Cap int
	Dur int
	Fla int
	Tex int
	Cal int
}

func getAnswerForTwoIngredients(lines []string) int {

	list := make([]*Ingredient, 0)

	score := 0
	for _, line := range lines {
		in := getIngredient(line)
		list = append(list, in)
	}

	m := 100
	for a := 0; a <= m; a++ {
		for b := 0; b <= m-a; b++ {

			cal := a*list[0].Cal + b*list[1].Cal
			if cal == 500 {
				cap := a*list[0].Cap + b*list[1].Cap
				dur := a*list[0].Dur + b*list[1].Dur
				fla := a*list[0].Fla + b*list[1].Fla
				tex := a*list[0].Tex + b*list[1].Tex
				if cap > 0 && dur > 0 && fla > 0 && tex > 0 {
					total := cap * dur * fla * tex
					score = max(score, total)
				}
			}

		}
	}

	return score
}

func getAnswerForFourIngredients(lines []string) int {

	list := make([]*Ingredient, 0)

	score := 0
	for _, line := range lines {
		in := getIngredient(line)
		list = append(list, in)
	}

	m := 100
	for a := 0; a <= m; a++ {
		for b := 0; b <= m; b++ {
			for c := 0; c <= m; c++ {
				for d := 0; d <= m; d++ {
					cal := a*list[0].Cal + b*list[1].Cal + c*list[2].Cal + d*list[3].Cal
					if cal == 500 {
						cap := a*list[0].Cap + b*list[1].Cap + c*list[2].Cap + d*list[3].Cap
						dur := a*list[0].Dur + b*list[1].Dur + c*list[2].Dur + d*list[3].Dur
						fla := a*list[0].Fla + b*list[1].Fla + c*list[2].Fla + d*list[3].Fla
						tex := a*list[0].Tex + b*list[1].Tex + c*list[2].Tex + d*list[3].Tex
						if a+b+c+d == 100 && cap > 0 && dur > 0 && fla > 0 && tex > 0 {
							total := cap * dur * fla * tex
							if total > score {
								score = total
							}
						}
					}
				}
			}
		}
	}

	return score
}

func getIngredient(line string) *Ingredient {
	parts := strings.Fields(line)
	capacity := util.ConvertStringToInt(strings.TrimSuffix(parts[2], ","))
	durability := util.ConvertStringToInt(strings.TrimSuffix(parts[4], ","))
	flavor := util.ConvertStringToInt(strings.TrimSuffix(parts[6], ","))
	texture := util.ConvertStringToInt(strings.TrimSuffix(parts[8], ","))
	calories := util.ConvertStringToInt(strings.TrimSuffix(parts[10], ","))
	in := Ingredient{
		Cap: capacity,
		Dur: durability,
		Fla: flavor,
		Tex: texture,
		Cal: calories,
	}

	return &in
}