47 lines
698 B
Go
47 lines
698 B
Go
package main
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import (
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"bytes"
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"fmt"
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"io"
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"os"
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"codeberg.org/danjones000/advent-of-code/2024-09/defrag"
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)
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func handleErr(err error) {
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if err == nil {
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return
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}
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fmt.Fprintln(os.Stderr, err)
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os.Exit(1)
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}
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func main() {
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name := os.Args[0]
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input, err := io.ReadAll(os.Stdin)
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handleErr(err)
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fmt.Fprintln(os.Stderr, "Welcome to ", name)
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input = bytes.TrimSpace(input)
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blocks, err := defrag.Blocks(input)
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handleErr(err)
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err = defrag.Defrag(blocks)
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handleErr(err)
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fmt.Println("From this")
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fmt.Printf("%s\n", input)
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fmt.Println("Got this")
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fmt.Printf("%v\n", blocks)
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sum, err := defrag.Checksum(blocks)
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handleErr(err)
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fmt.Println("Checksum:")
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fmt.Printf("%d\n", sum)
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}
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