day15, example

day15/dayFifteen.go

@@ -0,0 +1,36 @@
+package day15
+
+import (
+	"fmt"
+	"os"
+	"strings"
+)
+
+func Run() int {
+	fmt.Println("hello day 15")
+	filename := "day15/example"
+	bytes, err := os.ReadFile(filename)
+	if err != nil {
+		panic(fmt.Sprint("error reading file ", filename))
+	}
+	text := string(bytes)
+	text = strings.TrimSpace(text)
+	instructions := strings.Split(text, ",")
+
+	result := 0
+
+	for _, instruction := range instructions {
+		result += ASCIIStringHash(instruction)
+	}
+	return result
+}
+
+func ASCIIStringHash(str string) int {
+	result := 0
+	for _, symb := range str {
+		result += int(symb)
+		result *= 17
+		result %= 256
+	}
+	return result
+}

day15/example

@@ -0,0 +1 @@
+rn=1,cm-,qp=3,cm=2,qp-,pc=4,ot=9,ab=5,pc-,pc=6,ot=7

main.go

@@ -3,12 +3,12 @@ package main
 import (
 	"log"
 
-	"sunshine.industries/aoc2023/day14"
+	"sunshine.industries/aoc2023/day15"
 )
 
 func main() {
 	log.Print("> starting run:")
 
-	result := day14.Run()
+	result := day15.Run()
-	log.Printf("day14 result: %d\n****\n", result)
+	log.Printf("day15 result: %d\n****\n", result)
 }