Add solutions for 2023 Day 2

2023/02p1.go

@@ -0,0 +1,79 @@
+package main
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+
+	"aoc2023/utils"
+)
+
+type cubeGame struct {
+	id           int
+	minimumRed   int
+	minimumGreen int
+	minimumBlue  int
+	possible     bool
+}
+
+func D02P1() {
+	lines := utils.ReadLines("inputs/02.txt")
+	games := []cubeGame{}
+
+	idTotal := 0
+
+	for i, line := range lines {
+		games = append(games, parseCubeGameLine(line))
+		games[i].possible = checkGamePossibility(games[i], 12, 13, 14)
+
+		if games[i].possible {
+			idTotal += games[i].id
+		}
+	}
+	fmt.Printf("Total of possible games: %d\n", idTotal)
+}
+
+func parseCubeGameLine(line string) cubeGame {
+	currentGame := cubeGame{}
+
+	// Parse the game ID
+	identityString := strings.Split(line, ":")[0]
+	currentGame.id, _ = strconv.Atoi(strings.Split(identityString, " ")[1])
+
+	gameOutcome := line[7:]
+	handfulls := strings.Split(gameOutcome, ";")
+
+	// Split the handfulls into colours and counts
+	for _, handfull := range handfulls {
+		colours := strings.Split(handfull, ",")
+		for _, colour := range colours {
+			count, _ := strconv.Atoi(strings.Split(colour, " ")[1])
+			colourName := strings.Split(colour, " ")[2]
+
+			switch colourName {
+			case "red":
+				if count > currentGame.minimumRed {
+					currentGame.minimumRed = count
+				}
+			case "green":
+				if count > currentGame.minimumGreen {
+					currentGame.minimumGreen = count
+				}
+			case "blue":
+				if count > currentGame.minimumBlue {
+					currentGame.minimumBlue = count
+				}
+
+			}
+		}
+	}
+	return currentGame
+}
+
+func checkGamePossibility(game cubeGame, red, green, blue int) bool {
+	redPossible := game.minimumRed <= red
+	greenPossible := game.minimumGreen <= green
+	bluePossible := game.minimumBlue <= blue
+
+	return redPossible && greenPossible && bluePossible
+}

2023/02p2.go

@@ -0,0 +1,21 @@
+package main
+
+import (
+	"fmt"
+
+	"aoc2023/utils"
+)
+
+func D02P2() {
+	lines := utils.ReadLines("inputs/02.txt")
+	games := []cubeGame{}
+
+	powerLevelSum := 0
+
+	for i, line := range lines {
+		games = append(games, parseCubeGameLine(line))
+		gamePowerLevel := games[i].minimumRed * games[i].minimumGreen * games[i].minimumBlue
+		powerLevelSum += gamePowerLevel
+	}
+	fmt.Printf("Total Power Level: %d\n", powerLevelSum)
+}