p1

2024/05/go.mod

@@ -0,0 +1,3 @@
+module main
+
+go 1.23.3

2024/05/main.go

@@ -0,0 +1,102 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"strconv"
+	"strings"
+)
+
+func contains(s []int, e int) bool {
+	for _, a := range s {
+		if a == e {
+			return true
+		}
+	}
+	return false
+}
+
+func check(nums []int, maps map[int][]int) bool {
+	correct := true
+	for i := 0; i < len(nums); i++ {
+		var checking = nums[i]
+		for j := 0; j < len(nums); j++ {
+
+			if !contains(maps[checking], nums[j]) {
+				if i < j {
+					correct = false
+				}
+			}
+		}
+	}
+
+	return correct
+}
+
+func main() {
+
+	lines, err := parse()
+	if err != nil {
+		fmt.Println("Error:", err)
+	}
+
+	var p1 int = 0
+	var p2 int = 0
+
+	maps := make(map[int][]int)
+
+	for y := 0; y < len(lines); y++ {
+		if lines[y] != "" && lines[y][2] == '|' {
+			split := strings.Split(lines[y], "|")
+			l, err := strconv.Atoi(split[0])
+			if err != nil {
+				panic(err)
+			}
+			r, err := strconv.Atoi(split[1])
+			if err != nil {
+				panic(err)
+			}
+			maps[l] = append(maps[l], r)
+		}
+
+		if lines[y] != "" && lines[y][2] == ',' {
+			numsstr := strings.Split(lines[y], ",")
+			var nums []int
+
+			for i := 0; i < len(numsstr); i++ {
+				x, err := strconv.Atoi(numsstr[i])
+				if err != nil {
+					panic(err)
+				}
+				nums = append(nums, x)
+			}
+
+			if check(nums, maps) {
+				p1 += nums[len(nums)/2]
+			}
+		}
+	}
+
+	fmt.Println("p1: ", p1)
+	fmt.Println("p2: ", p2)
+}
+
+func parse() ([]string, error) {
+	if len(os.Args) < 2 {
+		return nil, fmt.Errorf("no file provided")
+	}
+	filePath := os.Args[1]
+	data, err := os.ReadFile(filePath)
+	if err != nil {
+		return nil, fmt.Errorf("error opening file: %v", err)
+	}
+	chunks := strings.Split(string(data), "\n")
+	var nonEmpthyChunks = []string{}
+
+	for _, chunk := range chunks {
+		if chunk != "" {
+			nonEmpthyChunks = append(nonEmpthyChunks, chunk)
+		}
+	}
+	return nonEmpthyChunks, nil
+}