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59 lines
951 B
59 lines
951 B
package main
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import (
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"flag"
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"fmt"
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"io"
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"log"
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"os"
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"strconv"
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)
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type puzzle interface {
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solve1(r io.Reader) string
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solve2(r io.Reader) string
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}
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var (
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// pick which day to run with a flag
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day = flag.String("d", "", "which day to solve")
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// slice of all puzzles
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puzzles = []puzzle{
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&day01{},
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&day02{},
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&day03{},
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&day04{},
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&day05{},
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&day06{},
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&day07{},
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&day08{},
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&day09{},
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&day10{},
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&day11{},
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&day12{},
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&day13{},
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}
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)
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func main() {
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flag.Parse()
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puzzleIndex, err := strconv.Atoi(*day)
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if err != nil {
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log.Fatalf("invalid puzzle day: %s", *day)
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}
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puzzle := puzzles[puzzleIndex-1]
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path1 := fmt.Sprintf("input/%d-1", puzzleIndex)
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path2 := fmt.Sprintf("input/%d-2", puzzleIndex)
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f1, err := os.Open(path1)
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if err == nil {
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fmt.Fprintf(os.Stdout, "Solution 1:\n%s\n", puzzle.solve1(f1))
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}
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f2, err := os.Open(path2)
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if err == nil {
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fmt.Fprintf(os.Stdout, "Solution 2:\n%s\n", puzzle.solve2(f2))
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}
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}
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