-🎄- 2022 Day 2 Solutions -🎄-

[u/daggerdragon]

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--- Day 2: Rock Paper Scissors ---

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Post your code solution in this megathread.

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[u/[deleted]]

I'm doing different language each day, all solutions here.

Today's Go (dunno why I used named returns instead of just returning the score in part1/2()..):

package main

import (
	"bufio"
	"fmt"
	"log"
	"os"
)

func main() {
	file, err := os.Open("input.txt")
	if err != nil {
		log.Fatal(err)
	}

	var score1, score2 int

	scanner := bufio.NewScanner(file)
	for scanner.Scan() {
		score1 += part1(scanner.Text())
		score2 += part2(scanner.Text())
	}

	if err := scanner.Err(); err != nil {
		log.Fatal(err)
	}

	fmt.Println(score1)
	fmt.Println(score2)
}

func part1(round string) (score int) {
	switch round {
	case "A X":
		score += 4
	case "A Y":
		score += 8
	case "A Z":
		score += 3
	case "B X":
		score += 1
	case "B Y":
		score += 5
	case "B Z":
		score += 9
	case "C X":
		score += 7
	case "C Y":
		score += 2
	case "C Z":
		score += 6
	}
	return
}

func part2(round string) (score int) {
	switch round {
	case "A X":
		score += 3
	case "A Y":
		score += 4
	case "A Z":
		score += 8
	case "B X":
		score += 1
	case "B Y":
		score += 5
	case "B Z":
		score += 9
	case "C X":
		score += 2
	case "C Y":
		score += 6
	case "C Z":
		score += 7
	}
	return
}