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@@ -36,12 +36,12 @@ func readInput(file string) (map[string]int, map[byte]int, map[string][]string)
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continue
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}
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- parts := strings.Split(line, " -> ")
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- if len(parts) != 2 {
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+ key, value, found := strings.Cut(line, " -> ")
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+ if !found {
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log.Fatal("Invalid line: ", line)
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}
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- input[parts[0]] = []string{fmt.Sprintf("%c%s", parts[0][0], parts[1]), fmt.Sprintf("%s%c", parts[1], parts[0][1])}
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+ input[key] = []string{fmt.Sprintf("%c%s", key[0], value), fmt.Sprintf("%s%c", value, key[1])}
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}
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return template, count, input
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