2022/go/day02/day02.go

   1 package day02
   2
   3 import (
   4         "strings"
   5 )
   6
   7 func Part1(input string) int {
   8         var sum int = 0
   9
  10         values := map[string]int{
  11                 "Rock":     1,
  12                 "Paper":    2,
  13                 "Scissors": 3,
  14         }
  15
  16         translateMap := map[string]string{
  17                 "X": "Rock",
  18                 "Y": "Paper",
  19                 "Z": "Scissors",
  20                 "A": "Rock",
  21                 "B": "Paper",
  22                 "C": "Scissors",
  23         }
  24
  25         winOn := map[string]string{
  26                 "Rock":     "Scissors",
  27                 "Paper":    "Rock",
  28                 "Scissors": "Paper",
  29         }
  30
  31         lines := strings.Split(input, "\n")
  32         for _, line := range lines {
  33                 objects := strings.Split(line, " ")
  34                 opponent := translateMap[objects[0]]
  35                 player := translateMap[objects[1]]
  36                 sum = sum + values[player]
  37                 if player == opponent {
  38                         sum = sum + 3
  39                 } else if winOn[player] == opponent {
  40                         sum = sum + 6
  41                 }
  42         }
  43         return sum
  44 }
  45
  46 func Part2(input string) int {
  47         var sum int = 0
  48
  49         values := map[string]int{
  50                 "Rock":     1,
  51                 "Paper":    2,
  52                 "Scissors": 3,
  53         }
  54
  55         translateMap := map[string]string{
  56                 "X": "Lose",
  57                 "Y": "Draw",
  58                 "Z": "Win",
  59                 "A": "Rock",
  60                 "B": "Paper",
  61                 "C": "Scissors",
  62         }
  63
  64         winOn := map[string]string{
  65                 "Rock":     "Paper",
  66                 "Paper":    "Scissors",
  67                 "Scissors": "Rock",
  68         }
  69
  70         loseOn := map[string]string{
  71                 "Rock":     "Scissors",
  72                 "Paper":    "Rock",
  73                 "Scissors": "Paper",
  74         }
  75
  76         lines := strings.Split(input, "\n")
  77         for _, line := range lines {
  78                 objects := strings.Split(line, " ")
  79                 opponent := translateMap[objects[0]]
  80                 result := translateMap[objects[1]]
  81                 if result == "Draw" {
  82                         sum = sum + 3 + values[opponent]
  83                 } else if result == "Win" {
  84                         sum = sum + 6 + values[winOn[opponent]]
  85                 } else {
  86                         sum = sum + values[loseOn[opponent]]
  87                 }
  88         }
  89         return sum}