day two, readme

daytwo.go

@@ -0,0 +1,77 @@
+package main
+
+import (
+	"fmt"
+	"strings"
+)
+
+func contains(s []string, e string) bool {
+	for _, a := range s {
+		if strings.EqualFold(a, e) {
+			return true
+		}
+	}
+	return false
+}
+
+func playValueOf(s string) int {
+	fmt.Println("played value: " + s)
+	fmt.Println("last char: " + string(s[len(s)-1]))
+
+	switch string(s[len(s)-1]) {
+	case "Z":
+		return 3
+	case "Y":
+		return 2
+	case "X":
+		return 1
+	default:
+		panic("Invalid input received at func playValueOf")
+	}
+}
+
+func dayTwo(input string) int {
+	// split input by newlines
+	var eachPart = strings.Split(input, "\n")
+
+	// trim all remaining whitespace
+	for j := range eachPart {
+		eachPart[j] = strings.TrimSpace(eachPart[j])
+	}
+
+	winningResults := []string{
+		"A Y",
+		"B Z",
+		"C X",
+	}
+
+	drawResult := []string{
+		"A X",
+		"B Y",
+		"C Z",
+	}
+
+	losingResult := []string{
+		"A Z",
+		"B X",
+		"C Y",
+	}
+
+	score := 0
+
+	for i := 0; i <= 3; i++ {
+		switch true {
+			case contains(winningResults, eachPart[i]):
+				score += playValueOf(eachPart[i]) + 6
+			case contains(drawResult, eachPart[i]):
+				score += playValueOf(eachPart[i]) + 3
+			case contains(losingResult, eachPart[i]):
+				score += playValueOf(eachPart[i])
+			default:
+				score += 0
+		}
+	}
+
+	return score
+}
+