Day 13

day13/ex2/main.go

@@ -0,0 +1,26 @@
+package main
+
+import (
+	"aoc2022/day13/common"
+	"bufio"
+	"fmt"
+	"os"
+	"sort"
+)
+
+func main() {
+  packets := common.ParsePackets(*bufio.NewScanner(os.Stdin), []string{"[[2]]", "[[6]]"})
+
+	sort.Slice(packets, func(i int, j int) bool {
+		return packets[i].Compare(packets[j]) < 0
+	})
+
+	result := 1
+	for i := 0; i < len(packets); i++ {
+		if packets[i].IsSeparator() {
+			result *= (i+1)
+		}
+	}
+
+  fmt.Println(result)
+}