Add Go

data/Y22/day2/day2.go

@@ -0,0 +1,93 @@
+package Y22
+
+import (
+	"adventofcode/src-go/helpers"
+	"strings"
+)
+
+const (
+	aRock     string = "A"
+	aPaper    string = "B"
+	aScissors string = "C"
+
+	bRock     string = "X"
+	bPaper    string = "Y"
+	bScissors string = "Z"
+
+	resultLose string = "X"
+	resultDraw string = "Y"
+	resultWin  string = "Z"
+)
+
+var scoreTable = map[string]map[string]int{
+	aRock: {
+		bRock:     4,
+		bPaper:    8,
+		bScissors: 3,
+	},
+	aPaper: {
+		bRock:     1,
+		bPaper:    5,
+		bScissors: 9,
+	},
+	aScissors: {
+		bRock:     7,
+		bPaper:    2,
+		bScissors: 6,
+	},
+}
+
+var winOrLoseTable = map[string]map[string]string{
+	aRock: {
+		resultWin:  bPaper,
+		resultDraw: bRock,
+		resultLose: bScissors,
+	},
+	aPaper: {
+		resultWin:  bScissors,
+		resultDraw: bPaper,
+		resultLose: bRock,
+	},
+	aScissors: {
+		resultWin:  bRock,
+		resultDraw: bScissors,
+		resultLose: bPaper,
+	},
+}
+
+func Day2() helpers.DayResults {
+	day2Example := helpers.ReadFileByLine("data/Y22/day2/example.txt")
+	day2 := helpers.ReadFileByLine("data/Y22/day2/data.txt")
+
+	results := helpers.DayResults{
+		Day:          2,
+		Year:         2022,
+		Part1Example: part1(day2Example),
+		Part1:        part1(day2),
+		Part2Example: part2(day2Example),
+		Part2:        part2(day2),
+	}
+
+	return results
+}
+
+func part1(input []string) int {
+	score := 0
+	for _, line := range input {
+		data := strings.Split(line, " ")
+		score += scoreTable[data[0]][data[1]]
+	}
+
+	return score
+}
+
+func part2(input []string) int {
+	score := 0
+	for _, line := range input {
+		data := strings.Split(line, " ")
+		scoreValue := winOrLoseTable[data[0]][data[1]]
+		score += scoreTable[data[0]][scoreValue]
+	}
+
+	return score
+}