package main

import (
	"bufio"
	"fmt"
	"log"
	"os"
	"sort"
	"strconv"
	"strings"
)

func original() {
	fmt.Println("Original Code")

	file, err := os.Open("./input.txt")
	if err != nil {
		log.Fatal("Error when opening input.json: ", err)
	}

	fileScanner := bufio.NewScanner(file)
	fileScanner.Split(bufio.ScanLines)

	var (
		listA, listB []int
	)

	for fileScanner.Scan() {
		slice := strings.Fields(fileScanner.Text())
		num1, _ := strconv.Atoi(slice[0])
		num2, _ := strconv.Atoi(slice[1])
		listA = append(listA, num1)
		listB = append(listB, num2)
	}

	file.Close()

	// Part 1
	sort.Ints(listA)
	sort.Ints(listB)

	sumPart1 := 0
	for i := 0; i < len(listA); i++ {
		if listA[i] > listB[i] {
			sumPart1 += listA[i] - listB[i]
		} else {
			sumPart1 += listB[i] - listA[i]
		}
	}

	fmt.Println("Sum of Part 1: ", sumPart1)

	// Part 2
	sumPart2 := 0

	for _, v1 := range listA {
		counter := 0
		for _, v2 := range listB {
			if v1 == v2 {
				counter++
			}
		}
		sumPart2 += counter * v1
	}

	fmt.Println("Sum of Part 2: ", sumPart2)
}