2023 Days 4 and 6

2023/04/part1/main.go

@@ -0,0 +1,56 @@
+
+package main
+
+import (
+	"bufio"
+	"os"
+	"strings"
+)
+
+func main() {
+	reader := bufio.NewReader(os.Stdin);
+
+	total := 0;
+
+	for text, err := reader.ReadString('\n'); err == nil; text, err = reader.ReadString('\n') {
+		points := score(text);
+
+		total += points;
+	}
+
+	println(total);
+
+}
+
+func score(text string) (score int) {
+	gameStr := strings.Trim(strings.ReplaceAll(strings.Split(text, ": ")[1], "  ", " "), "\n");
+
+	nums := strings.Split(gameStr," | ");
+
+	winners := strings.Split(nums[0]," ");
+	draw := strings.Split(nums[1]," ");
+
+	amt := 0;
+
+	for _, n := range draw {
+		match := false;
+		for _, w := range winners {
+			match = n == w;
+			if match {
+				break;
+			}
+		}
+		if match {
+			amt++;
+			if amt == 1 {
+				score = 1;
+			} else {
+				score *= 2;
+			}
+		}
+	}
+
+	return
+}
+
+