|
|
@@ -0,0 +1,47 @@
|
|
|
+package main
|
|
|
+
|
|
|
+import (
|
|
|
+ "fmt"
|
|
|
+ "io/ioutil"
|
|
|
+ "log"
|
|
|
+ "os"
|
|
|
+ "strconv"
|
|
|
+ "strings"
|
|
|
+)
|
|
|
+
|
|
|
+func readInput(file string) [][]int {
|
|
|
+ content, err := ioutil.ReadFile(file)
|
|
|
+ if err != nil {
|
|
|
+ log.Fatal(err)
|
|
|
+ }
|
|
|
+
|
|
|
+ lines := strings.Split(string(content), "\n")
|
|
|
+ var input [][]int
|
|
|
+ for _, line := range lines {
|
|
|
+ if line == "" {
|
|
|
+ continue
|
|
|
+ }
|
|
|
+
|
|
|
+ var numbers []int
|
|
|
+ for _, letter := range line {
|
|
|
+ if number, err := strconv.Atoi(string(letter)); err == nil {
|
|
|
+ numbers = append(numbers, number)
|
|
|
+ } else {
|
|
|
+ log.Fatal(err)
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ input = append(input, numbers)
|
|
|
+ }
|
|
|
+
|
|
|
+ return input
|
|
|
+}
|
|
|
+
|
|
|
+func main() {
|
|
|
+ if len(os.Args) < 2 {
|
|
|
+ log.Fatal("Please provide a file name as argument")
|
|
|
+ }
|
|
|
+
|
|
|
+ input := readInput(os.Args[1])
|
|
|
+ fmt.Println(input)
|
|
|
+}
|
