32 lines
561 B
Go
32 lines
561 B
Go
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package main
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import (
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"fmt"
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"io/ioutil"
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"os"
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)
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func main() {
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if len(os.Args) != 2 {
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fmt.Fprintln(os.Stderr, "Usage: sudoku FILENAME")
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os.Exit(2)
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}
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filename := os.Args[1]
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data, err := ioutil.ReadFile(filename)
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if err != nil {
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fmt.Fprintf(os.Stderr, "Error reading puzzle file: %v\n", err)
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os.Exit(3)
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}
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grid, err := ParseGrid(data)
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if err != nil {
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fmt.Fprintf(os.Stderr, "Error parsing grid: %v\n", err)
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os.Exit(3)
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}
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solution, err := grid.Solve()
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if err != nil {
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fmt.Fprintln(os.Stderr, err)
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os.Exit(3)
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}
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fmt.Println(solution)
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}
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