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@@ -0,0 +1,37 @@
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+package main
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+
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+import (
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+ "bytes"
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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 getRanges(data []byte) [][]int {
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+ var ranges [][]int
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+ ids := bytes.Split(data, []byte(","))
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+ for _, id := range ids {
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+ var start, end int
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+ n, err := fmt.Sscanf(string(id), "%d-%d", &start, &end)
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+ if err != nil || n != 2 {
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+ log.Fatalf("Invalid range: %s", id)
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+ }
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+ ranges = append(ranges, []int{start, end})
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+ }
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+
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+ return ranges
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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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+ data, err := os.ReadFile(os.Args[1])
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+ if err != nil {
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+ log.Fatal(err)
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+ }
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+
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+ ranges := getRanges(data)
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+ fmt.Println(ranges)
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+}
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