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@@ -0,0 +1,65 @@
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+package main
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+
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+import (
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+ "bufio"
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+ "fmt"
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+ "log"
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+ "os"
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+)
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+
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+func readDirections(line string) []string {
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+ var path []string
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+ signs := []rune(line)
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+ size := len(signs)
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+
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+ for i := 0; i < size; i++ {
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+ switch signs[i] {
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+ case 'e', 'w':
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+ path = append(path, string(signs[i]))
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+ case 's', 'n':
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+ path = append(path, string(signs[i:i+2]))
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+ i++
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+ }
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+ }
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+
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+ return path
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+}
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+
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+func readFile(file *os.File) [][]string {
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+ var paths [][]string
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+ scanner := bufio.NewScanner(file)
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+
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+ for scanner.Scan() {
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+ line := scanner.Text()
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+ if line == "" {
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+ break
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+ }
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+
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+ paths = append(paths, readDirections(line))
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+ }
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+ if err := scanner.Err(); err != nil {
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+ log.Fatalf("Scanner error: %s", err)
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+ }
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+
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+ return paths
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+}
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+
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+func main() {
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+ if len(os.Args) < 2 {
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+ log.Fatal("You need to specify a file!")
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+ }
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+
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+ filePath := os.Args[1]
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+ file, err := os.Open(filePath)
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+ if err != nil {
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+ log.Fatalf("Failed to open %s!\n", filePath)
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+
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+ }
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+
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+ paths := readFile(file)
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+ if err := file.Close(); err != nil {
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+ log.Fatalf("Failed to close file: %s", err)
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+ }
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+
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+ fmt.Println(paths)
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+}
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