71 lines
1.6 KiB
Go
71 lines
1.6 KiB
Go
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package main
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import (
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"bufio"
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"fmt"
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"os"
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"github.com/fatih/color"
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"github.com/thoas/go-funk"
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)
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func readFileLines(filename string) ([]string, error) {
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var lines []string
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file, err := os.Open(filename)
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if err != nil {
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return lines, err
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}
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fileScanner := bufio.NewScanner(file)
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fileScanner.Split(bufio.ScanLines)
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for fileScanner.Scan() {
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lines = append(lines, fileScanner.Text())
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}
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return lines, nil
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}
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func main() {
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redPrint := color.New(color.FgRed)
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yellowPrint := color.New(color.FgYellow)
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if len(os.Args) < 2 {
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redPrint.Fprintln(os.Stderr, "You must provide the input file")
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os.Exit(1)
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}
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lines, err := readFileLines(os.Args[1])
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if err != nil {
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redPrint.Fprintln(os.Stderr, "Could not read input file")
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os.Exit(1)
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}
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var games []Game
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for _, line := range lines {
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games = append(games, Game{})
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games[len(games)-1].parseGame(line)
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games[len(games)-1].resolveGame()
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}
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var part1Requirements = [3]CubeCount{{RED, 12}, {GREEN, 13}, {BLUE, 14}}
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var validIDsPart1 []uint64
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for _, game := range games {
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if game.canBePlayed(part1Requirements) {
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validIDsPart1 = append(validIDsPart1, game.id)
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}
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}
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sumPart1 := funk.Reduce(validIDsPart1, func(acc, elem uint64) uint64 { return acc + elem }, uint64(0))
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fmt.Print("Part 1: ")
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yellowPrint.Print(sumPart1)
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fmt.Println()
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var powersPart2 []uint64
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for _, game := range games {
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powersPart2 = append(powersPart2, game.getGamePower())
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}
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sumPart2 := funk.Reduce(powersPart2, func(acc, elem uint64) uint64 { return acc + elem }, uint64(0))
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fmt.Print("Part 2: ")
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yellowPrint.Print(sumPart2)
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fmt.Println()
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}
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